[ http://issues.apache.org/jira/browse/MYFACES-1392?page=all ]
Matthias Weßendorf resolved MYFACES-1392.
-----------------------------------------
Resolution: Won't Fix
could not reprocude
provide test case
> NullPointerException in SessionMap.setAttribute
> -----------------------------------------------
>
> Key: MYFACES-1392
> URL: http://issues.apache.org/jira/browse/MYFACES-1392
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 1.1.3
> Reporter: Mads Peter Henderson
>
> I frequently - but far from always get a NPE when I use the variable resolver
> to resolve a session scope variable. Does anyone have any idea of what I am
> doing wrong?
> The setup is this.
> I have set up a session scope backing bean let's call it my myBean.
> I have a servlet that generates graphic elements for some pages based on the
> information in myBean.
> In the servlet I do the following:
> FacesContext facesContext = FacesContext.getCurrentInstance();
> if (facesContext == null) {
> FacesContextFactory fcf =
> (FacesContextFactory)
> FactoryFinder.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY);
> LifecycleFactory lifecycleFactory =
> (LifecycleFactory)
> FactoryFinder.getFactory(FactoryFinder.LIFECYCLE_FACTORY);
> facesContext = fcf.getFacesContext(getServletContext(),
> req,
> resp,
> lifecycleFactory.getLifecycle(LifecycleFactory.DEFAULT_LIFECYCLE ));
> }
> if (facesContext != null) {
> VariableResolver vr =
> facesContext.getApplication().getVariableResolver();
> if (vr != null) {
> Object o = vr.resolveVariable(facesContext, "myBean");
> }
> }
> As I started to say the line:
> vr.resolveVariable(facesContext, "myBean");
> somtimes throw a NPE with the following trace:
> java.lang.NullPointerException
> at
> org.apache.myfaces.context.servlet.SessionMap.setAttribute(SessionMap.java:50)
> at
> org.apache.myfaces.context.servlet.AbstractAttributeMap.put(AbstractAttributeMap.java:104)
> at
> org.apache.myfaces.el.VariableResolverImpl$13.put(VariableResolverImpl.java:192)
> at
> org.apache.myfaces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:328)
> at
> org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42)
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