dev@glassfish.java.net

Re: Issue 247 NPE when acessing web resource

From: Jan Luehe <Jan.Luehe_at_Sun.COM>
Date: Thu, 10 Aug 2006 17:31:27 -0700

Vijay Ramachandran wrote On 08/10/06 10:11,:

>Jan - can you please take a look at this ?
>
>

 From the stacktrace, I can see that you are getting the
ClassCastException (involving
com.sun.xml.xwss.SystemHandlerDelegateFactory) during deployment, when
your webapp is started and its context listener is invoked.

I've searched all GlassFish issues for this exception and found:

  https://glassfish.dev.java.net/issues/show_bug.cgi?id=247

At that time, the exact exception was:

  Caused by: java.lang.ClassCastException:
  com.sun.xml.xwss.SystemHandlerDelegateFactory cannot be cast to
  com.sun.xml.ws.spi.runtime.SystemHandlerDelegateFactory

Before 247 issue was fixed, accessing

  http://localhost:8080/WSpex-latest/TestService

would cause a NPE.

We've fixed 247 so that you now get a

  HTTP/1.1 503 Service Unavailable

response, which is expected, since the webapp could not be
started (due to the ClassCastException during execution of its context
listener) and was therefore marked as unavailable.

However, the underlying ClassCastException was never addressed,
because 247 was just about the NPE!

As you mention, this ClassCastException occurs only when bundling
JAX-WS FCS and setting your classloader's "delegate" attribute to
FALSE (in sun-web.xml).

The ClassCastException suggests that in

  (com.sun.xml.ws.spi.runtime.SystemHandlerDelegateFactory) obj

the

  com.sun.xml.ws.spi.runtime.SystemHandlerDelegateFactory

extended by "obj" and the

  com.sun.xml.ws.spi.runtime.SystemHandlerDelegateFactory

it is being cast to have been loaded by different classloaders.

I think someone from jax-ws needs to take it from here.


Jan

>Thanks
>
>Vijay
>
>On Thu, 2006-08-10 at 10:09, Sameer Tyagi wrote:
>
>
>>I m trying to use JAX-WS Fcs but bunding it in web-inf/lib and using
>>delegate
>>in sun-web.xml
>>This works for tango and rearch but not for FcS bits....
>>
>>/s
>>
>>
>>
>>Vijay Ramachandran wrote:
>>
>>
>>
>>>Are you trying to use jaxws-rearch bits are jaxws2.0 bits ?
>>>
>>>Are you trying 109 based deployment or otherwise ?
>>>
>>>Including the jaxws mailing alias for their comment on this stack.
>>>
>>>Vijay
>>>
>>>On Thu, 2006-08-10 at 08:30, Sameer Tyagi wrote:
>>>
>>>
>>>
>>>
>>>>Has this been resolved ?
>>>>I just tried the latest build and tried to override the includes jars
>>>>with other jars and
>>>>get the same error again.
>>>>I thought this had been fixed - looks like it has resurfaced ?
>>>>
>>>>Exception sending context initialized event to listener instance of
>>>>class com.sun.xml.ws.transport.http.servlet.WSServletContextListener
>>>>WSSERVLET11: failed to parse runtime descriptor:
>>>>javax.xml.ws.WebServiceException: java.lang.ClassCastException:
>>>>com.sun.xml.xwss.SystemHandlerDelegateFactory
>>>> at
>>>>com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:130)
>>>> at
>>>>org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4236)
>>>> at
>>>>org.apache.catalina.core.StandardContext.start(StandardContext.java:4760)
>>>> at com.sun.enterprise.web.WebModule.start(WebModule.java:292)
>>>> at org.apache.catalina.core.ContainerBase.addChildInternal(Contai
>>>>
>>>>
>>>>/s
>>>>
>>>>
>>>>
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