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stephen mallette commented on TINKERPOP-1359: --------------------------------------------- This was resolved with: https://github.com/apache/tinkerpop/commit/c90fc1e1a1520bc3ac9872681fafb1173dd038bb {code} gremlin> graph = Neo4jGraph.open('/tmp/test') ==>neo4jgraph[Community [/tmp/test]] gremlin> g = graph.traversal() ==>graphtraversalsource[neo4jgraph[Community [/tmp/test]], standard] gremlin> g.V() gremlin> graph.cypher('create (p:Player {pid:1, site:10})') gremlin> graph.cypher('create (p:Player {pid:2, site:10})') gremlin> graph.cypher('create (p:Player {pid:3, site:10})') gremlin> graph.cypher('match (p:Player {pid:3}), (p2:Player {pid:2}) merge (p)-[:AKA {t:100}]-(p2)') gremlin> sg = g.V(2).outE().subgraph('sg').cap('sg').next() ==>tinkergraph[vertices:2 edges:1] {code} It will be fixed for 3.1.3 and 3.2.1 - thanks for taking the time to produce clear reproduction steps and for developing this ticket. > Exception thrown when calling subgraph() on Neo4jGraph > ------------------------------------------------------ > > Key: TINKERPOP-1359 > URL: https://issues.apache.org/jira/browse/TINKERPOP-1359 > Project: TinkerPop > Issue Type: Bug > Components: neo4j > Affects Versions: 3.1.2-incubating > Reporter: Francesco Vivoli > Fix For: 3.1.3, 3.2.1 > > > It seems calling subgraph() on a Neo4j database triggers an > UnsupportedOperationException > This has been tested on gremlin-console-3.2.0-incubating. > Steps to reproduce > ------------------------- > {code} > graph = Neo4jGraph.open('/tmp/test') > g = graph.traversal() > graph.cypher('create (p:Player {pid:1, site:10})') > graph.cypher('create (p:Player {pid:2, site:10})') > graph.cypher('create (p:Player {pid:3, site:10})') > graph.cypher('match (p:Player {pid:3}), (p2:Player {pid:2}) merge (p)-[:AKA > {t:100}]-(p2)') > sg = g.V(2).outE().subgraph('sg').cap('sg').next() > {code} > Expected behaviour: subgraph is created > Actual behaviour: the following exception is thrown > {code} > java.lang.UnsupportedOperationException: Properties on a vertex property is > not supported > at > org.apache.tinkerpop.gremlin.structure.VertexProperty$Exceptions.metaPropertiesNotSupported(VertexProperty.java:103) > at > org.apache.tinkerpop.gremlin.neo4j.structure.trait.NoMultiNoMetaNeo4jTrait.getProperties(NoMultiNoMetaNeo4jTrait.java:146) > at > org.apache.tinkerpop.gremlin.neo4j.structure.Neo4jVertexProperty.properties(Neo4jVertexProperty.java:97) > at > org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SubgraphStep.lambda$getOrCreate$2(SubgraphStep.java:102) > at > org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SubgraphStep$$Lambda$64/777687292.accept(Unknown > Source) > at java.util.Iterator.forEachRemaining(Iterator.java:116) > at > org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SubgraphStep.getOrCreate(SubgraphStep.java:100) > at > org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SubgraphStep.addEdgeToSubgraph(SubgraphStep.java:111) > at > org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SubgraphStep.sideEffect(SubgraphStep.java:64) > at > org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SideEffectStep.processNextStart(SideEffectStep.java:39) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.hasNext(AbstractStep.java:140) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.ExpandableStepIterator.hasNext(ExpandableStepIterator.java:42) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.SupplyingBarrierStep.processAllStarts(SupplyingBarrierStep.java:83) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.SupplyingBarrierStep.processNextStart(SupplyingBarrierStep.java:70) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.next(AbstractStep.java:126) > at > org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.next(AbstractStep.java:37) > at > org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversal.next(DefaultTraversal.java:156) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)