Project Number Date
cypher-for-gremlin 0.9.12 13 Sep 2018, 16:07

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
MergeIntoAcceptance 32 6 0 0 0 38 0 6 6 0.202 Failed
Feature MergeIntoAcceptance
0.004
Given an empty graph 0.000

16:07:32.664 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().drop()}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}}

And having executed: 0.004
CREATE (:A {name: 'A'}), (:B {name: 'B'})

16:07:32.665 [Test worker] DEBUG o.a.t.g.driver.Client - CREATE (:A {name: 'A'}), (:B {name: 'B'})}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.665 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: CREATE (:A {name: 'A'}), (:B {name: 'B'}) 16:07:32.668 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.addV('A').property(single, 'name', 'A').addV('B').property(single, 'name', 'B').barrier().limit(0)

0.020
Scenario Updating one property with ON CREATE
Steps
When executing query: 0.007
MATCH (a {name: 'A'}), (b {name: 'B'})
MERGE (a)-[r:TYPE]->(b)
  ON CREATE SET r.name = 'foo'

16:07:32.684 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r.name = 'foo'}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.685 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r.name = 'foo' 16:07:32.688 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().as('a').has('name', eq('A')).V().as('b').has('name', eq('B')).choose(__.select('a').outE('TYPE').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))), __.select('a').outE('TYPE').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))), __.identity().addE('TYPE').from('a').to('b').choose(neq(' cypher.null'), __.property('name', 'foo'), __.constant(' cypher.null'))).barrier().limit(0)

Then the result should be empty 0.000
And the side effects should be: 0.008
+relationships 1
+properties 1

16:07:32.692 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) RETURN id(n)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.692 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) RETURN id(n) 16:07:32.694 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().project('id(n)').by(__.id()) 16:07:32.694 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r]->() RETURN id(r)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.694 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r]->() RETURN id(r) 16:07:32.696 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.E().project('id(r)').by(__.id()) 16:07:32.697 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.697 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label 16:07:32.699 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().label().is(neq('vertex')).project('label').by(__.identity()).dedup() 16:07:32.699 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().as('V').properties().project('nodeId', 'key', 'value').by(__.select('V').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.700 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().outE().as('E').properties().project('relId', 'key', 'value').by(__.select('E').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} -labels: 0 +labels: 0 +nodes: 0 -nodes: 0 -properties: 0 +properties: 1 -relationships: 0 +relationships: 1

When executing control query: 0.004
MATCH ()-[r:TYPE]->()
RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue

16:07:32.700 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.700 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue 16:07:32.704 [gremlin-server-worker-1] WARN o.a.t.g.s.h.OpExecutorHandler - Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) java.lang.UnsupportedOperationException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) at org.opencypher.gremlin.translation.context.WalkerContext.unsupported(WalkerContext.scala:69) at org.opencypher.gremlin.translation.walker.NodeUtils$.traversalValueToJava(NodeUtils.scala:73) at org.opencypher.gremlin.translation.walker.NodeUtils$.expressionValue(NodeUtils.scala:33) at org.opencypher.gremlin.translation.walker.ExpressionWalker.org$opencypher$gremlin$translation$walker$ExpressionWalker$$walkLocal(ExpressionWalker.scala:312) at org.opencypher.gremlin.translation.walker.ExpressionWalker$.walkLocal(ExpressionWalker.scala:48) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$walkLocal(ProjectionWalker.scala:414) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$subTraversal(ProjectionWalker.scala:255) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:104) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:101) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.ProjectionWalker.returnSubTraversals(ProjectionWalker.scala:101) at org.opencypher.gremlin.translation.walker.ProjectionWalker.walk(ProjectionWalker.scala:71) at org.opencypher.gremlin.translation.walker.ProjectionWalker$.walk(ProjectionWalker.scala:41) at org.opencypher.gremlin.translation.walker.StatementWalker.org$opencypher$gremlin$translation$walker$StatementWalker$$walkClause(StatementWalker.scala:123) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.StatementWalker.walkSingle(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker.walk(StatementWalker.scala:43) at org.opencypher.gremlin.translation.walker.StatementWalker$.walk(StatementWalker.scala:30) at org.opencypher.gremlin.translation.CypherAst.translate(CypherAst.scala:82) at org.opencypher.gremlin.server.op.cypher.CypherOpProcessor.evalCypher(CypherOpProcessor.java:104) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:68) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:43) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler$1.channelRead(WebSocketServerProtocolHandler.java:159) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) at java.lang.Thread.run(Thread.java:748)

Then the result should be: 0.000
org.opencypher.tools.tck.api.Scenario$ScenarioFailedException: Feature "MergeIntoAcceptance": Scenario "Updating one property with ON CREATE" failed with message: Expected: | keyValue |
| ['name->foo'] |, got error ExecutionFailed(UnknownError,runtime,Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))),Some(org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))))
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:95)
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:60)
	at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:124)
	at scala.collection.immutable.List.foldLeft(List.scala:84)
	at org.opencypher.tools.tck.api.Scenario.executeOnGraph(Scenario.scala:60)
	at org.opencypher.tools.tck.api.Scenario$$anon$1.execute(Scenario.scala:54)
	at org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:145)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:46)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:24)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$0(HierarchicalTestExecutor.java:85)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$1(TestFactoryTestDescriptor.java:80)
	at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:68)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:92)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$100(JUnitPlatformTestClassProcessor.java:77)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:73)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:246)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:197)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:123)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:67)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:94)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
	... 1 more
keyValue
['name->foo']
0.003
Given an empty graph 0.000

16:07:32.705 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().drop()}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}}

And having executed: 0.003
CREATE (:A {name: 'A'}), (:B {name: 'B'})

16:07:32.706 [Test worker] DEBUG o.a.t.g.driver.Client - CREATE (:A {name: 'A'}), (:B {name: 'B'})}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.706 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: CREATE (:A {name: 'A'}), (:B {name: 'B'}) 16:07:32.708 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.addV('A').property(single, 'name', 'A').addV('B').property(single, 'name', 'B').barrier().limit(0)

0.023
Scenario Null-setting one property with ON CREATE
Steps
When executing query: 0.007
MATCH (a {name: 'A'}), (b {name: 'B'})
MERGE (a)-[r:TYPE]->(b)
  ON CREATE SET r.name = null

16:07:32.723 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r.name = null}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.723 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r.name = null 16:07:32.726 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().as('a').has('name', eq('A')).V().as('b').has('name', eq('B')).choose(__.select('a').outE('TYPE').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))), __.select('a').outE('TYPE').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))), __.identity().addE('TYPE').from('a').to('b').choose(neq(' cypher.null'), __.sideEffect(__.properties('name').drop()), __.constant(' cypher.null'))).barrier().limit(0)

Then the result should be empty 0.000
And the side effects should be: 0.011
+relationships 1

16:07:32.730 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) RETURN id(n)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.730 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) RETURN id(n) 16:07:32.732 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().project('id(n)').by(__.id()) 16:07:32.732 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r]->() RETURN id(r)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.732 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r]->() RETURN id(r) 16:07:32.734 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.E().project('id(r)').by(__.id()) 16:07:32.735 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.735 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label 16:07:32.737 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().label().is(neq('vertex')).project('label').by(__.identity()).dedup() 16:07:32.737 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().as('V').properties().project('nodeId', 'key', 'value').by(__.select('V').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.738 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().outE().as('E').properties().project('relId', 'key', 'value').by(__.select('E').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} -labels: 0 +labels: 0 +nodes: 0 -nodes: 0 -properties: 0 +properties: 0 -relationships: 0 +relationships: 1

When executing control query: 0.004
MATCH ()-[r:TYPE]->()
RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue

16:07:32.741 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.741 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue 16:07:32.745 [gremlin-server-worker-1] WARN o.a.t.g.s.h.OpExecutorHandler - Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) java.lang.UnsupportedOperationException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) at org.opencypher.gremlin.translation.context.WalkerContext.unsupported(WalkerContext.scala:69) at org.opencypher.gremlin.translation.walker.NodeUtils$.traversalValueToJava(NodeUtils.scala:73) at org.opencypher.gremlin.translation.walker.NodeUtils$.expressionValue(NodeUtils.scala:33) at org.opencypher.gremlin.translation.walker.ExpressionWalker.org$opencypher$gremlin$translation$walker$ExpressionWalker$$walkLocal(ExpressionWalker.scala:312) at org.opencypher.gremlin.translation.walker.ExpressionWalker$.walkLocal(ExpressionWalker.scala:48) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$walkLocal(ProjectionWalker.scala:414) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$subTraversal(ProjectionWalker.scala:255) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:104) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:101) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.ProjectionWalker.returnSubTraversals(ProjectionWalker.scala:101) at org.opencypher.gremlin.translation.walker.ProjectionWalker.walk(ProjectionWalker.scala:71) at org.opencypher.gremlin.translation.walker.ProjectionWalker$.walk(ProjectionWalker.scala:41) at org.opencypher.gremlin.translation.walker.StatementWalker.org$opencypher$gremlin$translation$walker$StatementWalker$$walkClause(StatementWalker.scala:123) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.StatementWalker.walkSingle(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker.walk(StatementWalker.scala:43) at org.opencypher.gremlin.translation.walker.StatementWalker$.walk(StatementWalker.scala:30) at org.opencypher.gremlin.translation.CypherAst.translate(CypherAst.scala:82) at org.opencypher.gremlin.server.op.cypher.CypherOpProcessor.evalCypher(CypherOpProcessor.java:104) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:68) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:43) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler$1.channelRead(WebSocketServerProtocolHandler.java:159) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) at java.lang.Thread.run(Thread.java:748)

Then the result should be: 0.000
org.opencypher.tools.tck.api.Scenario$ScenarioFailedException: Feature "MergeIntoAcceptance": Scenario "Null-setting one property with ON CREATE" failed with message: Expected: | keyValue |
| [] |, got error ExecutionFailed(UnknownError,runtime,Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))),Some(org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))))
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:95)
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:60)
	at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:124)
	at scala.collection.immutable.List.foldLeft(List.scala:84)
	at org.opencypher.tools.tck.api.Scenario.executeOnGraph(Scenario.scala:60)
	at org.opencypher.tools.tck.api.Scenario$$anon$1.execute(Scenario.scala:54)
	at org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:145)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:46)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:24)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$0(HierarchicalTestExecutor.java:85)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$1(TestFactoryTestDescriptor.java:80)
	at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:68)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:92)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$100(JUnitPlatformTestClassProcessor.java:77)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:73)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:246)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:197)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:123)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:67)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:94)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
	... 1 more
keyValue
[]
0.004
Given an empty graph 0.000

16:07:32.747 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().drop()}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}}

And having executed: 0.004
CREATE (:A {name: 'A'}), (:B {name: 'B'})

16:07:32.747 [Test worker] DEBUG o.a.t.g.driver.Client - CREATE (:A {name: 'A'}), (:B {name: 'B'})}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.747 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: CREATE (:A {name: 'A'}), (:B {name: 'B'}) 16:07:32.749 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.addV('A').property(single, 'name', 'A').addV('B').property(single, 'name', 'B').barrier().limit(0)

0.011
Scenario Copying properties from node with ON CREATE
Steps
When executing query: 0.011
MATCH (a {name: 'A'}), (b {name: 'B'})
MERGE (a)-[r:TYPE]->(b)
  ON CREATE SET r = a

16:07:32.776 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r = a}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.776 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r = a 16:07:32.781 [gremlin-server-worker-1] WARN o.a.t.g.s.h.OpExecutorHandler - Variable(a) (of class org.opencypher.v9_0.expressions.Variable) scala.MatchError: Variable(a) (of class org.opencypher.v9_0.expressions.Variable) at org.opencypher.gremlin.translation.walker.SetWalker.asMap(SetWalker.scala:73) at org.opencypher.gremlin.translation.walker.SetWalker$$anonfun$walkSetClause$1.apply(SetWalker.scala:64) at org.opencypher.gremlin.translation.walker.SetWalker$$anonfun$walkSetClause$1.apply(SetWalker.scala:55) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.SetWalker.walkSetClause(SetWalker.scala:55) at org.opencypher.gremlin.translation.walker.SetWalker.walkClause(SetWalker.scala:44) at org.opencypher.gremlin.translation.walker.SetWalker$.walkClause(SetWalker.scala:35) at org.opencypher.gremlin.translation.walker.MergeWalker$$anonfun$walkMerge$1.apply(MergeWalker.scala:54) at org.opencypher.gremlin.translation.walker.MergeWalker$$anonfun$walkMerge$1.apply(MergeWalker.scala:52) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.MergeWalker.walkMerge(MergeWalker.scala:52) at org.opencypher.gremlin.translation.walker.MergeWalker.walkClause(MergeWalker.scala:39) at org.opencypher.gremlin.translation.walker.MergeWalker$.walkClause(MergeWalker.scala:31) at org.opencypher.gremlin.translation.walker.StatementWalker.org$opencypher$gremlin$translation$walker$StatementWalker$$walkClause(StatementWalker.scala:115) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.StatementWalker.walkSingle(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker.walk(StatementWalker.scala:43) at org.opencypher.gremlin.translation.walker.StatementWalker$.walk(StatementWalker.scala:30) at org.opencypher.gremlin.translation.CypherAst.translate(CypherAst.scala:82) at org.opencypher.gremlin.server.op.cypher.CypherOpProcessor.evalCypher(CypherOpProcessor.java:104) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:68) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:43) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler$1.channelRead(WebSocketServerProtocolHandler.java:159) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) at java.lang.Thread.run(Thread.java:748)

Then the result should be empty 0.000
org.opencypher.tools.tck.api.Scenario$ScenarioFailedException: Feature "MergeIntoAcceptance": Scenario "Copying properties from node with ON CREATE" failed with message: Expected: <empty result>, got error ExecutionFailed(UnknownError,runtime,Variable(a) (of class org.opencypher.v9_0.expressions.Variable),Some(org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Variable(a) (of class org.opencypher.v9_0.expressions.Variable)))
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:95)
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:60)
	at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:124)
	at scala.collection.immutable.List.foldLeft(List.scala:84)
	at org.opencypher.tools.tck.api.Scenario.executeOnGraph(Scenario.scala:60)
	at org.opencypher.tools.tck.api.Scenario$$anon$1.execute(Scenario.scala:54)
	at org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:145)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:46)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:24)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$0(HierarchicalTestExecutor.java:85)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$1(TestFactoryTestDescriptor.java:80)
	at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:68)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:92)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$100(JUnitPlatformTestClassProcessor.java:77)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:73)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Variable(a) (of class org.opencypher.v9_0.expressions.Variable)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:246)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:197)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:123)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:67)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:94)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
	... 1 more
0.009
Given an empty graph 0.000

16:07:32.788 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().drop()}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}}

And having executed: 0.008
CREATE (:A {name: 'A'}), (:B {name: 'B'})

16:07:32.791 [Test worker] DEBUG o.a.t.g.driver.Client - CREATE (:A {name: 'A'}), (:B {name: 'B'})}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.791 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: CREATE (:A {name: 'A'}), (:B {name: 'B'}) 16:07:32.796 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.addV('A').property(single, 'name', 'A').addV('B').property(single, 'name', 'B').barrier().limit(0)

0.021
Scenario Copying properties from node with ON MATCH
Steps
And having executed: 0.014
MATCH (a:A), (b:B)
CREATE (a)-[:TYPE {foo: 'bar'}]->(b)

16:07:32.800 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a:A), (b:B) CREATE (a)-[:TYPE {foo: 'bar'}]->(b)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.800 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a:A), (b:B) CREATE (a)-[:TYPE {foo: 'bar'}]->(b) 16:07:32.805 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().as('a').hasLabel('A').V().as('b').hasLabel('B').addE('TYPE').from('a').to('b').property('foo', 'bar').barrier().limit(0)

When executing query: 0.006
MATCH (a {name: 'A'}), (b {name: 'B'})
MERGE (a)-[r:TYPE]->(b)
  ON MATCH SET r = a

16:07:32.831 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON MATCH SET r = a}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.831 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON MATCH SET r = a 16:07:32.837 [gremlin-server-worker-1] WARN o.a.t.g.s.h.OpExecutorHandler - Variable(a) (of class org.opencypher.v9_0.expressions.Variable) scala.MatchError: Variable(a) (of class org.opencypher.v9_0.expressions.Variable) at org.opencypher.gremlin.translation.walker.SetWalker.asMap(SetWalker.scala:73) at org.opencypher.gremlin.translation.walker.SetWalker$$anonfun$walkSetClause$1.apply(SetWalker.scala:64) at org.opencypher.gremlin.translation.walker.SetWalker$$anonfun$walkSetClause$1.apply(SetWalker.scala:55) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.SetWalker.walkSetClause(SetWalker.scala:55) at org.opencypher.gremlin.translation.walker.SetWalker.walkClause(SetWalker.scala:44) at org.opencypher.gremlin.translation.walker.SetWalker$.walkClause(SetWalker.scala:35) at org.opencypher.gremlin.translation.walker.MergeWalker$$anonfun$walkMerge$1.apply(MergeWalker.scala:53) at org.opencypher.gremlin.translation.walker.MergeWalker$$anonfun$walkMerge$1.apply(MergeWalker.scala:52) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.MergeWalker.walkMerge(MergeWalker.scala:52) at org.opencypher.gremlin.translation.walker.MergeWalker.walkClause(MergeWalker.scala:39) at org.opencypher.gremlin.translation.walker.MergeWalker$.walkClause(MergeWalker.scala:31) at org.opencypher.gremlin.translation.walker.StatementWalker.org$opencypher$gremlin$translation$walker$StatementWalker$$walkClause(StatementWalker.scala:115) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.StatementWalker.walkSingle(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker.walk(StatementWalker.scala:43) at org.opencypher.gremlin.translation.walker.StatementWalker$.walk(StatementWalker.scala:30) at org.opencypher.gremlin.translation.CypherAst.translate(CypherAst.scala:82) at org.opencypher.gremlin.server.op.cypher.CypherOpProcessor.evalCypher(CypherOpProcessor.java:104) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:68) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:43) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler$1.channelRead(WebSocketServerProtocolHandler.java:159) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) at java.lang.Thread.run(Thread.java:748)

Then the result should be empty 0.000
org.opencypher.tools.tck.api.Scenario$ScenarioFailedException: Feature "MergeIntoAcceptance": Scenario "Copying properties from node with ON MATCH" failed with message: Expected: <empty result>, got error ExecutionFailed(UnknownError,runtime,Variable(a) (of class org.opencypher.v9_0.expressions.Variable),Some(org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Variable(a) (of class org.opencypher.v9_0.expressions.Variable)))
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:95)
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:60)
	at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:124)
	at scala.collection.immutable.List.foldLeft(List.scala:84)
	at org.opencypher.tools.tck.api.Scenario.executeOnGraph(Scenario.scala:60)
	at org.opencypher.tools.tck.api.Scenario$$anon$1.execute(Scenario.scala:54)
	at org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:145)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:46)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:24)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$0(HierarchicalTestExecutor.java:85)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$1(TestFactoryTestDescriptor.java:80)
	at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:68)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:92)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$100(JUnitPlatformTestClassProcessor.java:77)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:73)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Variable(a) (of class org.opencypher.v9_0.expressions.Variable)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:246)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:197)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:123)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:67)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:94)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
	... 1 more
0.005
Given an empty graph 0.000

16:07:32.838 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().drop()}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}}

And having executed: 0.005
CREATE (:A {name: 'A'}), (:B {name: 'B'})

16:07:32.839 [Test worker] DEBUG o.a.t.g.driver.Client - CREATE (:A {name: 'A'}), (:B {name: 'B'})}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.839 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: CREATE (:A {name: 'A'}), (:B {name: 'B'}) 16:07:32.841 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.addV('A').property(single, 'name', 'A').addV('B').property(single, 'name', 'B').barrier().limit(0)

0.043
Scenario Copying properties from literal map with ON CREATE
Steps
When executing query: 0.013
MATCH (a {name: 'A'}), (b {name: 'B'})
MERGE (a)-[r:TYPE]->(b)
  ON CREATE SET r += {foo: 'bar', bar: 'baz'}

16:07:32.866 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r += {foo: 'bar', bar: 'baz'}}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.867 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON CREATE SET r += {foo: 'bar', bar: 'baz'} 16:07:32.873 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().as('a').has('name', eq('A')).V().as('b').has('name', eq('B')).choose(__.select('a').outE('TYPE').as('r').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))), __.select('a').outE('TYPE').as('r').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))), __.identity().addE('TYPE').from('a').to('b').as('r').choose(neq(' cypher.null'), __.property('foo', 'bar'), __.constant(' cypher.null')).select('r').choose(neq(' cypher.null'), __.property('bar', 'baz'), __.constant(' cypher.null'))).barrier().limit(0)

Then the result should be empty 0.000
And the side effects should be: 0.018
+relationships 1
+properties 2

16:07:32.880 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) RETURN id(n)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.880 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) RETURN id(n) 16:07:32.882 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().project('id(n)').by(__.id()) 16:07:32.884 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r]->() RETURN id(r)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.887 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r]->() RETURN id(r) 16:07:32.891 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.E().project('id(r)').by(__.id()) 16:07:32.891 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.893 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label 16:07:32.896 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().label().is(neq('vertex')).project('label').by(__.identity()).dedup() 16:07:32.897 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().as('V').properties().project('nodeId', 'key', 'value').by(__.select('V').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.897 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().outE().as('E').properties().project('relId', 'key', 'value').by(__.select('E').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} -labels: 0 +labels: 0 +nodes: 0 -nodes: 0 -properties: 0 +properties: 2 -relationships: 0 +relationships: 1

When executing control query: 0.012
MATCH ()-[r:TYPE]->()
RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue

16:07:32.898 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.900 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue 16:07:32.907 [gremlin-server-worker-1] WARN o.a.t.g.s.h.OpExecutorHandler - Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) java.lang.UnsupportedOperationException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) at org.opencypher.gremlin.translation.context.WalkerContext.unsupported(WalkerContext.scala:69) at org.opencypher.gremlin.translation.walker.NodeUtils$.traversalValueToJava(NodeUtils.scala:73) at org.opencypher.gremlin.translation.walker.NodeUtils$.expressionValue(NodeUtils.scala:33) at org.opencypher.gremlin.translation.walker.ExpressionWalker.org$opencypher$gremlin$translation$walker$ExpressionWalker$$walkLocal(ExpressionWalker.scala:312) at org.opencypher.gremlin.translation.walker.ExpressionWalker$.walkLocal(ExpressionWalker.scala:48) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$walkLocal(ProjectionWalker.scala:414) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$subTraversal(ProjectionWalker.scala:255) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:104) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:101) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.ProjectionWalker.returnSubTraversals(ProjectionWalker.scala:101) at org.opencypher.gremlin.translation.walker.ProjectionWalker.walk(ProjectionWalker.scala:71) at org.opencypher.gremlin.translation.walker.ProjectionWalker$.walk(ProjectionWalker.scala:41) at org.opencypher.gremlin.translation.walker.StatementWalker.org$opencypher$gremlin$translation$walker$StatementWalker$$walkClause(StatementWalker.scala:123) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.StatementWalker.walkSingle(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker.walk(StatementWalker.scala:43) at org.opencypher.gremlin.translation.walker.StatementWalker$.walk(StatementWalker.scala:30) at org.opencypher.gremlin.translation.CypherAst.translate(CypherAst.scala:82) at org.opencypher.gremlin.server.op.cypher.CypherOpProcessor.evalCypher(CypherOpProcessor.java:104) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:68) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:43) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler$1.channelRead(WebSocketServerProtocolHandler.java:159) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) at java.lang.Thread.run(Thread.java:748)

Then the result should be (ignoring element order for lists): 0.000
org.opencypher.tools.tck.api.Scenario$ScenarioFailedException: Feature "MergeIntoAcceptance": Scenario "Copying properties from literal map with ON CREATE" failed with message: Expected: | keyValue |
| ['bar->baz', 'foo->bar'] |, got error ExecutionFailed(UnknownError,runtime,Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))),Some(org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))))
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:95)
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:60)
	at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:124)
	at scala.collection.immutable.List.foldLeft(List.scala:84)
	at org.opencypher.tools.tck.api.Scenario.executeOnGraph(Scenario.scala:60)
	at org.opencypher.tools.tck.api.Scenario$$anon$1.execute(Scenario.scala:54)
	at org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:145)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:46)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:24)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$0(HierarchicalTestExecutor.java:85)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$1(TestFactoryTestDescriptor.java:80)
	at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:68)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:92)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$100(JUnitPlatformTestClassProcessor.java:77)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:73)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:246)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:197)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:123)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:67)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:94)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
	... 1 more
keyValue
['foo->bar', 'bar->baz']
0.008
Given an empty graph 0.000

16:07:32.911 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().drop()}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}}

And having executed: 0.008
CREATE (:A {name: 'A'}), (:B {name: 'B'})

16:07:32.913 [Test worker] DEBUG o.a.t.g.driver.Client - CREATE (:A {name: 'A'}), (:B {name: 'B'})}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.913 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: CREATE (:A {name: 'A'}), (:B {name: 'B'}) 16:07:32.916 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.addV('A').property(single, 'name', 'A').addV('B').property(single, 'name', 'B').barrier().limit(0)

0.045
Scenario Copying properties from literal map with ON MATCH
Steps
And having executed: 0.009
MATCH (a:A), (b:B)
CREATE (a)-[:TYPE {foo: 'bar'}]->(b)

16:07:32.921 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a:A), (b:B) CREATE (a)-[:TYPE {foo: 'bar'}]->(b)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.922 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a:A), (b:B) CREATE (a)-[:TYPE {foo: 'bar'}]->(b) 16:07:32.924 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().as('a').hasLabel('A').V().as('b').hasLabel('B').addE('TYPE').from('a').to('b').property('foo', 'bar').barrier().limit(0)

When executing query: 0.013
MATCH (a {name: 'A'}), (b {name: 'B'})
MERGE (a)-[r:TYPE]->(b)
  ON MATCH SET r += {foo: 'baz', bar: 'baz'}

16:07:32.944 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON MATCH SET r += {foo: 'baz', bar: 'baz'}}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.944 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (a {name: 'A'}), (b {name: 'B'}) MERGE (a)-[r:TYPE]->(b) ON MATCH SET r += {foo: 'baz', bar: 'baz'} 16:07:32.950 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().as('a').has('name', eq('A')).V().as('b').has('name', eq('B')).choose(__.select('a').outE('TYPE').as('r').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))).select('r').choose(neq(' cypher.null'), __.property('foo', 'baz'), __.constant(' cypher.null')).select('r').choose(neq(' cypher.null'), __.property('bar', 'baz'), __.constant(' cypher.null')), __.select('a').outE('TYPE').as('r').inV().as(' GENERATED5').where(__.select(' GENERATED5').where(eq('b'))).select('r').choose(neq(' cypher.null'), __.property('foo', 'baz'), __.constant(' cypher.null')).select('r').choose(neq(' cypher.null'), __.property('bar', 'baz'), __.constant(' cypher.null')), __.identity().addE('TYPE').from('a').to('b').as('r')).barrier().limit(0)

Then the result should be empty 0.000
And the side effects should be: 0.014
+properties 2
-properties 1

16:07:32.958 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) RETURN id(n)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.958 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) RETURN id(n) 16:07:32.962 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().project('id(n)').by(__.id()) 16:07:32.963 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r]->() RETURN id(r)}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.963 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r]->() RETURN id(r) 16:07:32.967 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.E().project('id(r)').by(__.id()) 16:07:32.968 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.968 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH (n) UNWIND labels(n) AS label RETURN DISTINCT label 16:07:32.971 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Gremlin: g.V().label().is(neq('vertex')).project('label').by(__.identity()).dedup() 16:07:32.971 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().as('V').properties().project('nodeId', 'key', 'value').by(__.select('V').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.971 [Test worker] DEBUG o.a.t.g.driver.Client - g.V().outE().as('E').properties().project('relId', 'key', 'value').by(__.select('E').id()).by(__.key()).by(__.value())}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} -labels: 0 +labels: 0 +nodes: 0 -nodes: 0 -properties: 1 +properties: 2 -relationships: 0 +relationships: 0

When executing control query: 0.007
MATCH ()-[r:TYPE]->()
RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue

16:07:32.972 [Test worker] DEBUG o.a.t.g.driver.Client - MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue}} to - Connection{host=Host{address=localhost/127.0.0.1:36913, hostUri=ws://localhost:36913/gremlin}} 16:07:32.972 [gremlin-server-worker-1] INFO o.o.g.s.o.c.CypherOpProcessor - Cypher: MATCH ()-[r:TYPE]->() RETURN [key IN keys(r) | key + '->' + r[key]] AS keyValue 16:07:32.978 [gremlin-server-worker-1] WARN o.a.t.g.s.h.OpExecutorHandler - Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) java.lang.UnsupportedOperationException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))) at org.opencypher.gremlin.translation.context.WalkerContext.unsupported(WalkerContext.scala:69) at org.opencypher.gremlin.translation.walker.NodeUtils$.traversalValueToJava(NodeUtils.scala:73) at org.opencypher.gremlin.translation.walker.NodeUtils$.expressionValue(NodeUtils.scala:33) at org.opencypher.gremlin.translation.walker.ExpressionWalker.org$opencypher$gremlin$translation$walker$ExpressionWalker$$walkLocal(ExpressionWalker.scala:312) at org.opencypher.gremlin.translation.walker.ExpressionWalker$.walkLocal(ExpressionWalker.scala:48) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$walkLocal(ProjectionWalker.scala:414) at org.opencypher.gremlin.translation.walker.ProjectionWalker.org$opencypher$gremlin$translation$walker$ProjectionWalker$$subTraversal(ProjectionWalker.scala:255) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:104) at org.opencypher.gremlin.translation.walker.ProjectionWalker$$anonfun$returnSubTraversals$1.apply(ProjectionWalker.scala:101) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.ProjectionWalker.returnSubTraversals(ProjectionWalker.scala:101) at org.opencypher.gremlin.translation.walker.ProjectionWalker.walk(ProjectionWalker.scala:71) at org.opencypher.gremlin.translation.walker.ProjectionWalker$.walk(ProjectionWalker.scala:41) at org.opencypher.gremlin.translation.walker.StatementWalker.org$opencypher$gremlin$translation$walker$StatementWalker$$walkClause(StatementWalker.scala:123) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker$$anonfun$walkSingle$1.apply(StatementWalker.scala:82) at scala.collection.immutable.List.foreach(List.scala:392) at org.opencypher.gremlin.translation.walker.StatementWalker.walkSingle(StatementWalker.scala:82) at org.opencypher.gremlin.translation.walker.StatementWalker.walk(StatementWalker.scala:43) at org.opencypher.gremlin.translation.walker.StatementWalker$.walk(StatementWalker.scala:30) at org.opencypher.gremlin.translation.CypherAst.translate(CypherAst.scala:82) at org.opencypher.gremlin.server.op.cypher.CypherOpProcessor.evalCypher(CypherOpProcessor.java:104) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:68) at org.apache.tinkerpop.gremlin.server.handler.OpExecutorHandler.channelRead0(OpExecutorHandler.java:43) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler$1.channelRead(WebSocketServerProtocolHandler.java:159) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) at java.lang.Thread.run(Thread.java:748)

Then the result should be (ignoring element order for lists): 0.000
org.opencypher.tools.tck.api.Scenario$ScenarioFailedException: Feature "MergeIntoAcceptance": Scenario "Copying properties from literal map with ON MATCH" failed with message: Expected: | keyValue |
| ['bar->baz', 'foo->baz'] |, got error ExecutionFailed(UnknownError,runtime,Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r)))),Some(org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))))
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:95)
	at org.opencypher.tools.tck.api.Scenario$$anonfun$executeOnGraph$1.apply(Scenario.scala:60)
	at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:124)
	at scala.collection.immutable.List.foldLeft(List.scala:84)
	at org.opencypher.tools.tck.api.Scenario.executeOnGraph(Scenario.scala:60)
	at org.opencypher.tools.tck.api.Scenario$$anon$1.execute(Scenario.scala:54)
	at org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:145)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:46)
	at org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:24)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$0(HierarchicalTestExecutor.java:85)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$1(TestFactoryTestDescriptor.java:80)
	at org.junit.jupiter.engine.execution.ThrowableCollector.execute(ThrowableCollector.java:40)
	at org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:68)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:110)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:83)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Iterator.forEachRemaining(Iterator.java:116)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
	at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:92)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$100(JUnitPlatformTestClassProcessor.java:77)
	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:73)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.stop(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Unsupported value expression: ListComprehension(ExtractScope(Variable(key),None,Some(Add(Add(Variable(key),StringLiteral(->)),ContainerIndex(Variable(r),Variable(key))))),FunctionInvocation(Namespace(List()),FunctionName(keys),false,Vector(Variable(r))))
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:246)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinResponseHandler.channelRead0(Handler.java:197)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:123)
	at org.apache.tinkerpop.gremlin.driver.Handler$GremlinSaslAuthenticationHandler.channelRead0(Handler.java:67)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at org.apache.tinkerpop.gremlin.driver.handler.WebSocketClientHandler.channelRead0(WebSocketClientHandler.java:94)
	at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
	... 1 more
keyValue
['foo->baz', 'bar->baz']