[jira] Created: (MYFACES-1740) NullPointer exception in ErrorPageWriter

[JIRA]

NullPointer exception in ErrorPageWriter
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                 Key: MYFACES-1740
                 URL: https://issues.apache.org/jira/browse/MYFACES-1740
             Project: MyFaces Core
          Issue Type: Bug
    Affects Versions: 1.1.6
         Environment: Oracle Application Server 10.1.3.1
Myfaces 1.1.6 + Tomahawk + Ajax4JSF (also happens without the AJAX library)
Java 5
In a Suse 9 Box
            Reporter: Ricardo Ramírez


Since I updated to 1.1.6, my error log has a lot of these:

java.lang.NullPointerException: 
        javax.faces.webapp._ErrorPageWriter.isText(_ErrorPageWriter.java:344)
        
javax.faces.webapp._ErrorPageWriter.writeComponent(_ErrorPageWriter.java:220)
        javax.faces.webapp._ErrorPageWriter.debugHtml(_ErrorPageWriter.java:143)
        
javax.faces.webapp._ErrorPageWriter.handleException(_ErrorPageWriter.java:359)
        
javax.faces.webapp.FacesServlet.handleLifecycleException(FacesServlet.java:182)
        javax.faces.webapp.FacesServlet.service(FacesServlet.java:145)
        
com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)

I'm sorry, I've tried reproduced the problem, but I can't. In my single-machine 
installation, it works fine. Once I load it in the productions servers, with 
100+ concurrent users, I start getting this issue. The application itself works 
fine, and the users haven't reported an unavailable service, but i get like 20 
or so of this exceptions daily.

Any chance that at line 344 of ErrorPageWriter:

   return (c.getClass().getName().startsWith("com.sun.facelets.compiler"));

would be changed to:

    return c != null && 
(c.getClass().getName().startsWith("com.sun.facelets.compiler"));




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