Subclass of java.util.logging.Level creates PermGen memory leak --------------------------------------------------------------- Key: JBLOGGING-118 URL: https://issues.jboss.org/browse/JBLOGGING-118 Project: JBoss Logging Issue Type: Bug Components: jboss-logging-jdk Affects Versions: 3.3.0.Beta1 Environment: JDK7, Tomcat 7, OpenJPA-2.4.1, ValidationAPI-1.x, hibernate-validator-5.2.1, jboss-logging (fresh from github). Reporter: Murmur Murmur Assignee: James Perkins Subclass of java.util.logging.Level creates PermGen memory leak if webapp provides jboss-logging.jar inside a webapp. This happen most likely in Tomcat and hot-redeployment stops working after few times out of PermGen memory. It's a commonly known side effect of JDK logging library, projects should not inherit Level class. See this discussion and github pull request where I have fixed this problem. http://stackoverflow.com/a/32412984/185565 https://github.com/jboss-logging/jboss-logging/pull/21