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https://issues.apache.org/jira/browse/TINKERPOP3-770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14629884#comment-14629884
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Asaf Shakarchi commented on TINKERPOP3-770:
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btw, this is happening only if the property is new and detaching
Property.empty() fails to do so,
Thanks.
> Exception while AddPropertyStep tries to detach vertex property
> ---------------------------------------------------------------
>
> Key: TINKERPOP3-770
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-770
> Project: TinkerPop 3
> Issue Type: Bug
> Components: process
> Affects Versions: 3.0.0-incubating
> Reporter: Asaf Shakarchi
> Assignee: stephen mallette
> Fix For: 3.0.1-incubating
>
>
> Hey,
> It seems like AddProperty steps tries to detach the added property by:
> evt = new Event.VertexPropertyChangedEvent(DetachedFactory.detach((Vertex)
> currentElement, true), newProperty ? null :
> DetachedFactory.detach((VertexProperty) currentProperty, true), value,
> vertexPropertyKeyValues);
> It fails to do so,
> Following is a java code that throws exception:
> Graph g = TinkerFactory.createModern();
> ConsoleMutationListener l = new ConsoleMutationListener(g);
> EventStrategy eventStrategy =
> EventStrategy.build().addListener(l).create();
> GraphTraversalSource gts =
> GraphTraversalSource.build().with(eventStrategy).create(g);
> gts.addV().property("foo", "bar").next();
> Here's the stack:
> java.lang.IllegalStateException: The property does not exist as it has no
> key, value, or associated element
> at
> org.apache.tinkerpop.gremlin.structure.Property$Exceptions.propertyDoesNotExist(Property.java:151)
> at
> org.apache.tinkerpop.gremlin.structure.util.empty.EmptyVertexProperty.id(EmptyVertexProperty.java:49)
> at
> org.apache.tinkerpop.gremlin.structure.util.detached.DetachedElement.<init>(DetachedElement.java:50)
> at
> org.apache.tinkerpop.gremlin.structure.util.detached.DetachedVertexProperty.<init>(DetachedVertexProperty.java:47)
> at
> org.apache.tinkerpop.gremlin.structure.util.detached.DetachedFactory.detach(DetachedFactory.java:45)
> at
> org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.AddPropertyStep.sideEffect(AddPropertyStep.java:90)
> at
> org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SideEffectStep.processNextStart(SideEffectStep.java:39)
> Thanks.
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