[POOL-316] Evictor periodically throws NullPointerExceptions

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.2
• Fix Version/s: 2.4.3
• Assignee: Unassigned
• Reporter: Caleb Cittadino
• Created: 20/Oct/16 15:20
• Updated: 29/Oct/17 16:07
• Resolved: 02/Nov/16 18:25

Description

When the logging level is set to WARN or INFO we see the following NPE peridically:

[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