> To summarize the problem: > > I had a memory leak when using Tomcats manager to reload my application. > Analyzing the situation i found that Singeltons are never GC'd. Why? Looking > deeper there seems to be a problem with old WebappClassLoaders never getting > GC'd and the reason seems to be that there are references to the > WebappClassLoaders that never get removed.
Yes, that's a good analysis. I'll apply the patch. Thanks, Remy > See here for more information: > > http://nyx.obidobi.net/~thomas/tomcat/index.html > > I have located the problem to: > > static Hashtables (clBindings, clNameBindings ) located in class > org.apache.naming.ContextBindings. > > The classLoaders are added to these Hashtables by a call from > lifecycleEvent in the class NamingContextListner.java > > =============> > NamingContextListner.java, 295 > > if (container instanceof Context) { > // Setting the context in read only mode > ContextAccessController.setReadOnly(getName()); > try { > ContextBindings.bindClassLoader > (container, container, > ((Container) > container).getLoader().getClassLoader()); > } catch (NamingException e) { > log(sm.getString("naming.bindFailed", e)); > } > } > > <============ > > I think that there should be a call to unbindClassLoader in the following > code > > NamingContextListner.java, 325 > > } else if (event.getType() == Lifecycle.STOP_EVENT) { > > if (!initialized) > return; > > // Setting the context in read/write mode > ContextAccessController.setWritable(getName(), container); > > New line ===> ContextBindings.unbindClassLoader( container, container ); > > ContextAccessController.unsetSecurityToken(getName(), > container); > > namingContext = null; > envCtx = null; > compCtx = null; > initialized = false; > > } > } > > Thomas > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
