Backed up to 1.642.1 from 1.642.2 and memory leak is gone. With 1.642.2 the leak doesn't show in the java console or in the monitor plugin. I only see it in the memory usage from the top command. Resident memory grows until the machine eventually runs out of physical and swap memory. Using java 1.7.0_79 on centos 5.9.

We experienced a memory leak after upgrading to a version with this patch. We had been seeing ~600MB daily log file size with these warnings present, but after the change we see unbounded growth in the memory footprint of java. Has anyone else noticed this? It might not be evident if the warning wasn't happening that often.

Thanks a lot Oliver Gondža for the explanation and for backporting. Much appreciated.

What Daniel had in mind is issues are usually tracked for master bugs and I consider them for backporting only after they are resoled (on master). I have updated the docs so users can recheck if their candidates do not get ignored: https://wiki.jenkins-ci.org/pages/diffpages.action?pageId=57180302&originalId=93456004.

Daniel Beck For sure, it's fixed on master but I'd like to see this backported in next LTS.

Clearly, it's fixed. (Only Fixed issues are eligible)