I also now found this:
https://javaserverfaces.dev.java.net/issues/show_bug.cgi?id=538
On Fri, Mar 20, 2009 at 9:34 AM, Matthias Wessendorf <matzew_at_apache.org> wrote:
> Hi,
>
> in the 1.1_02-b08 version of the RI, there is a the
> "createAndMaybeStoreManagedBeans" method which has a sync block(see
> below for the code), which causes a deadlock...:
>
> Thread dump shows two deadlocks:
> <deadlock>
> "AJPRequestHandler-RMICallHandler-59" prio=6 tid=0x558a8da0
> nid=0x1100 waiting for monitor entry [0x612fe000..0x612ffa9c] at
> com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:282)
> - waiting to lock <0x18cb1608> (a
> com.sun.faces.application.ApplicationAssociate) at
> com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:97)
> at oracle.adfinternal.view.faces.el.AdfFacesVariableResolver.resolveVariable(AdfFacesVariableResolver.java:40)
> at com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:145)
> at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:166)
> at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
> at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)
> at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
> .....
> ....
>
> "AJPRequestHandler-RMICallHandler-57" prio=6 tid=0x54086298
> nid=0x1c94 waiting for monitor entry [0x609ce000..0x609cfa1c] at
> com.evermind.server.http.EvermindHttpSession.getAttribute(EvermindHttpSession.java:208)
> - waiting to lock <0x2d981328> (a
> com.evermind.server.http.EvermindHttpSession) at
> com.sun.faces.context.SessionMap.get(ExternalContextImpl.java:569)
> at com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:90)
> at oracle.adfinternal.view.faces.el.AdfFacesVariableResolver.resolveVariable(AdfFacesVariableResolver.java:40)
> at com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:145)
> at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:166)
> at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
> at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)
> at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
> </deadlock>
>
> Looking at the ApplicationAssociate and I see that that method is now
> gone, due to some changes/refactorings, I guess...
>
> Also, I found this bug, where some one reported already a deadlock:
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6223295
>
> So, my questions are now:
> -was 1.1_02-b08 the LAST release of the JSF 1.1 specific implementation ?
> -was the bug only fixed for JSF 1.2 ?
>
> ::::::::::::::::CODE::::::::::::::::
> check this sync block; it also includes the session.put - which is a
> recursive lock into the http session
>
> <snip>
> public Object createAndMaybeStoreManagedBeans(FacesContext context,
> String managedBeanName) throws FacesException
>
> {
>
> ManagedBeanFactory managedBean =
> (ManagedBeanFactory)managedBeanFactoriesMap.get(managedBeanName);
>
> if(managedBean == null)
>
> {
>
> if(log.isDebugEnabled()) log.debug("Couldn't find a factory
> for " + managedBeanName);
>
> return null;
>
> }
>
> Object bean = null;
>
> String scope = managedBean.getScope();
>
> if(log.isTraceEnabled())
>
> log.trace("Storing " + managedBeanName + " in scope " + scope);
>
> boolean scopeIsApplication = false;
>
> boolean scopeIsSession = false;
>
> boolean scopeIsRequest = false;
>
> if((scopeIsApplication = scope.equalsIgnoreCase("application")) ||
> (scopeIsSession = scope.equalsIgnoreCase("session")))
>
> {
>
> synchronized(this)
>
> {
>
> try
>
> {
>
> bean = managedBean.newInstance(context);
>
> if(log.isDebugEnabled())
>
> log.debug("Created bean " + managedBeanName + " successfully ");
>
> }
>
> catch(Exception ex)
>
> {
>
> Object params[] = {
>
> ex.getMessage()
>
> };
>
> if(log.isErrorEnabled())
>
> log.error("Managedbean " + managedBeanName + " could not be created "
> + ex.getMessage(), ex);
>
> throw new FacesException(ex);
>
> }
>
> if(scopeIsApplication)
>
> context.getExternalContext().getApplicationMap().put(managedBeanName, bean);
>
> if(scopeIsSession)
>
> Util.getSessionMap(context).put(managedBeanName, bean);
>
> }
>
> } else
> .........
> </snip>
>
> Thanks!
> Matthias
>
> --
> Matthias Wessendorf
>
> blog: http://matthiaswessendorf.wordpress.com/
> sessions: http://www.slideshare.net/mwessendorf
> twitter: http://twitter.com/mwessendorf
>
--
Matthias Wessendorf
blog: http://matthiaswessendorf.wordpress.com/
sessions: http://www.slideshare.net/mwessendorf
twitter: http://twitter.com/mwessendorf