[jira] [Closed] (TINKERPOP-2734) NullPointerException when calling Client chooseConnection()

["Stephen Mallette (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP-2734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephen Mallette closed TINKERPOP-2734.
---------------------------------------
    Fix Version/s: 3.7.0
                   3.6.1
                   3.5.4
         Assignee: Stephen Mallette
       Resolution: Fixed

> NullPointerException when calling Client chooseConnection()
> -----------------------------------------------------------
>
>                 Key: TINKERPOP-2734
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2734
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: driver
>    Affects Versions: 3.5.2
>            Reporter: Mark Bennett
>            Assignee: Stephen Mallette
>            Priority: Major
>             Fix For: 3.7.0, 3.6.1, 3.5.4
>
>
> This is similar to TINKERPOP-2597 and reported fixed in gremlin driver 3.5.2. However, we are still getting intermittent null pointer exceptions, and our stack trace it a bit different:
> {code:java}
> java.lang.NullPointerException: null
> at org.apache.tinkerpop.gremlin.driver.Client$SessionedClient.chooseConnection(Client.java:813)
> at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:390)
> at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:373)
> at org.apache.tinkerpop.gremlin.driver.Client.submitAsync(Client.java:298)
> at org.apache.tinkerpop.gremlin.driver.Client.submit(Client.java:250)
> {code}
> In addition we see this in our logs:
> class=org.apache.tinkerpop.gremlin.driver.ConnectionPool
> Signalled closing of connection pool on Host\{..}
> class=org.apache.tinkerpop.gremlin.driver.Client
> Could not initialize client for Optional[..]
> Seeing a lot of this too:
> Timed-out (16000 MILLISECONDS) waiting for connection on Host{}



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