Hello, I am using Drools Expert v5.30 with mvel-2.1.0-drools4.jar. In my program, i run drools in a specific classloader (child first urlClassloader) and i maybe detect a memory Leak with the class org.mvel2.MVELRuntime. In the method resetDebugger, the content of the threadLocal is never set to null, so i have a reference in the main thread to this instance. After call debuggerContext.set(null) with the magic of instropection, the memory leak disappear (and i can reload my specific classloader). Is this bug already checked? (I have scan google with no result) Does it concerns drools or mvel? For what this class is useful? Thanks for help Jérémy SOULA -- View this message in context: http://drools.46999.n3.nabble.com/Drools-expert-Memory-Leak-with-org-mvel... Sent from the Drools: User forum mailing list archive at Nabble.com.