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Posted to issues@commons.apache.org by "Caleb Cittadino (JIRA)" <ji...@apache.org> on 2016/10/20 15:20:58 UTC

[jira] [Created] (POOL-316) Evictor periodically throws NullPointerExceptions

Caleb Cittadino created POOL-316:
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             Summary: Evictor periodically throws NullPointerExceptions
                 Key: POOL-316
                 URL: https://issues.apache.org/jira/browse/POOL-316
             Project: Commons Pool
          Issue Type: Bug
    Affects Versions: 2.4.2
            Reporter: Caleb Cittadino


When the logging level is set to WARN or INFO we see the following NPE peridically:
{code}
[2016-10-20 13:26:38,646 | WARN  | org.apache.commons.dbcp2.BasicDataSource] An internal object pool swallowed an Exception.
java.lang.Exception: java.lang.NullPointerException
       at org.apache.commons.pool2.impl.GenericObjectPool.evict(GenericObjectPool.java:787) [commons-pool2-2.4.2.jar:2.4.2]
       at org.apache.commons.pool2.impl.BaseGenericObjectPool$Evictor.run(BaseGenericObjectPool.java:1036) [commons-pool2-2.4.2.jar:2.4.2]
       at java.util.TimerThread.mainLoop(Unknown Source) [na:1.8.0_25]
       at java.util.TimerThread.run(Unknown Source) [na:1.8.0_25]
Caused by: java.lang.NullPointerException: null
       at org.apache.commons.pool2.impl.GenericObjectPool.evict(GenericObjectPool.java:781) [commons-pool2-2.4.2.jar:2.4.2]
       ... 3 common frames omitted
{code}



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