org.jgroups.protocols.TP.ChannelThreadGroup leaks classloaders / PermGen memory ------------------------------------------------------------------------------- Key: JGRP-1576 URL: https://issues.jboss.org/browse/JGRP-1576 Project: JGroups Issue Type: Feature Request Affects Versions: 3.2.5 Reporter: Mattias Jiderhamn Assignee: Bela Ban Fix For: 3.2.7 Just like JGRP-1410 there is a custom ThreadGroup org.jgroups.protocols.TP.ChannelThreadGroup which is not destroyed so the parent thread group will keep a reference and keep the classloader from being garbage collected. There is actually code for destroying the thread groups (line 1026-1030) but for some reason it is commented out.