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From "Fluharty, Fred" <Fred.Fluha...@ps.net>
Subject RE: Trouble with SOAPException
Date Wed, 07 Jan 2004 14:32:32 GMT
THANK YOU!!  That was exactly the problem.  How insane.  But thank you so
much for your help.

-----Original Message-----
From: Scott Nichol [mailto:snicholnews@scottnichol.com]
Sent: Wednesday, January 07, 2004 9:09 AM
To: soap-user@ws.apache.org
Subject: Re: Trouble with SOAPException


Fred,

The error message you see in HTML is not created by Apache SOAP.  Your
WebLogic container is catching the NPE and returning this to you.  The real
job here is to understand what you get the NPE.  Unfortunately, it appears
you are using the 2.3.1 release of Apache SOAP, which hides the root cause
of the exception.  Shortly after 2.3.1 was released, the line

          throw new ServletException ("Error building response envelope: " +
e);

was changed to 

          throw new ServletException ("Error building response envelope: " +
e, e); 

precisely to provide the information needed to track down exceptions like
you are experiencing.

In 2.3.1, the most common cause of exceptions like the one you are getting
is the deployment descriptor, specifically the element

 
<isd:faultListener>org.apache.soap.server.DOMFaultListener</isd:faultListene
r>

Note that the character content of the element is the name of a Java class.
If the class is not found, the 2.3.1 code ignored the exception, but that
eventually led to an NPE.  The most common error is that the line above is
*not* equivalent to 

    <isd:faultListener>org.apache.soap.server.DOMFaultListener
    </isd:faultListener>

or

    <isd:faultListener>
    org.apache.soap.server.DOMFaultListener</isd:faultListener>

because the whitespace is significant.  I recommend you check your DD for
similar whitespace.

I also recommend you change from the 2.3.1 to a recent nightly build, but I
understand that many people want to stick with a formal release.

Scott Nichol

Do not send e-mail directly to this e-mail address,
because it is filtered to accept only mail from
specific mail lists.
----- Original Message ----- 
From: "Fluharty, Fred" <Fred.Fluharty@ps.net>
To: <soap-user@ws.apache.org>
Sent: Wednesday, January 07, 2004 8:41 AM
Subject: Trouble with SOAPException


> Hello all.  Hopefully someone can help me here.
> 
> I want to have an exception returned to the caller of an exposed SOAP
> method, so I'm making the following call:
> 
> throw new SOAPException(Constants.FAULT_CODE_SERVER, <error
> message>);
> 
> An exception makes it back to the caller, but it's more something about
the
> content of the response being in HTML, not XML.  On our side, which is a
> WebLogic server using Apache SOAP, I get the following in the WebLogic
> output:
> 
> <Jan 6, 2004 11:42:44 AM PST> <Error> <HTTP> <101018>
> <[ServletContext(id=1223009,name=soap,context-path=/soap)] Servlet failed
> with ServletException
> javax.servlet.ServletException: Error building response envelope:
> java.lang.NullPointerException
>         at
>
org.apache.soap.server.http.RPCRouterServlet.doPost(RPCRouterServlet.java:41
> 8)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>         at
>
weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(Servle
> tStubImpl.java:1075)
>         at
>
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
> :418)
>         at
>
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
> :306)
>         at
>
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(W
> ebAppServletContext.java:5528)
>         at
>
weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManage
> r.java:685)
>         at
>
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
> ntext.java:3155)
>         at
>
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
> :2519)
>         at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:234)
>         at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:210)
> 
> I don't know why this NPE is happening on my server-side, or why they're
not
> simply seeing a SOAPException on the client side..  I'd appreciate any
help
> you could give me.
> 
> 
> Thanks,
> Fred Fluharty
> 

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