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NullPointerException is Thrown by the Cleaner Thread (Doc ID 436393.1)

Last updated on JANUARY 08, 2020

Applies to:

Berkeley DB Java Edition - Version 3.2.23 to 3.2.28
Information in this document applies to any platform.
NOTE: In the images and/or the document content below, the user information, the object name information, the database name information and data used represents fictitious data from the Oracle sample schema(s) or Public Documentation delivered with an Oracle database product or other training material. Any similarity to actual persons, living or dead, is purely coincidental and not intended in any manner.


After running an application for a long period of time, and performing a huge number of reads, writes, deletes on the order of millions of objects, the JE Cleanup thread starts throwing a NPE (NullPointerException). The following error messages could be printed out for a large number of times:

This is followed by a JVM crash.
Before reading this please refer also to the following note, <Note 436388.1>. The fix provided for this issue is a patch that should be applied after the patch in that note is applied.


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