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https://issues.apache.org/jira/browse/TINKERPOP3-955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15001075#comment-15001075
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ASF GitHub Bot commented on TINKERPOP3-955:
-------------------------------------------
Github user spmallette commented on the pull request:
https://github.com/apache/incubator-tinkerpop/pull/143#issuecomment-155908283
i suspect more @pluradj - would be nice to get some more serialization
tests in play to root out other problems. I made the tests i supplied here
integration tests to make sure the driver was working properly end to end, but
i'll tack in a few more here as unit tests for additional coverage:
https://github.com/apache/incubator-tinkerpop/tree/master/gremlin-driver/src/test/java/org/apache/tinkerpop/gremlin/driver/ser
note that we relaxed the need for registration in 3.1.0 by adding a config
to flip that switch, but it's better to register than not and registration
remains the default.
> HashMap$Node not serializable
> -----------------------------
>
> Key: TINKERPOP3-955
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-955
> Project: TinkerPop 3
> Issue Type: Bug
> Components: server
> Affects Versions: 3.1.0-incubating
> Reporter: Bob Briody
> Assignee: stephen mallette
> Fix For: 3.1.0-incubating
>
>
> The following code
> m = g.V().groupCount().by(bothE().count()).next()
> m
> causes the following error when executed via gremlin server
> java.util.concurrent.ExecutionException:
> org.apache.tinkerpop.gremlin.driver.ser.SerializationException:
> java.lang.IllegalArgumentException: Class is not registered:
> java.util.HashMap$Node
> Note: To register this class use: kryo.register(java.util.HashMap$Node.class);
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