[SLING-7526] NPE in DefaultThreadPool$LoggingThreadLocalChangeListener.changed

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Commons Threads 3.2.16
• Fix Version/s: Commons Threads 3.2.18
• Component/s: Commons
• Environment: MacOS, jdk18 ; Linux, oracle-jdk18
• Assignee: Robert Munteanu
• Reporter: Krystian Nowak
• Created: 02/Mar/18 09:56
• Updated: 19/Jun/18 12:54
• Resolved: 13/Jun/18 15:00

Description

Randomly a NullPointerException is happening in DefaultThreadPool$LoggingThreadLocalChangeListener.changed:

Exception in thread "sling-oak-1" java.lang.NullPointerException
	at org.apache.sling.commons.threads.impl.DefaultThreadPool$LoggingThreadLocalChangeListener.changed(DefaultThreadPool.java:172)
	at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.changed(ThreadLocalCleaner.java:210)
	at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.diff(ThreadLocalCleaner.java:173)
	at org.apache.sling.commons.threads.impl.ThreadLocalCleaner.cleanup(ThreadLocalCleaner.java:148)
	at org.apache.sling.commons.threads.impl.ThreadPoolExecutorCleaningThreadLocals.afterExecute(ThreadPoolExecutorCleaningThreadLocals.java:75)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)