Re: WebLogic NullPointer from PageContextImpl.getAttribute

[Tim Kuntz]

How do you have your environment setup? Where did you put the Struts.jar and 
your application classes?

From: Wong Kok Wai [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: WebLogic NullPointer from PageContextImpl.getAttribute
Date: Sat, 30 Dec 2000 17:45:03 -0800 (PST)

Strange I don't have the ClassCastException. Is the
struts.jar included in the weblogic classpath? If yes,
I believe if you remove struts.jar from the classpath,
the ClassCastException will go away.

--- Tim Kuntz [EMAIL PROTECTED] wrote:
  Thanks. SP8 corrects the
  PageContextImpl.getAttribute problem but the
  ClassCastException remains and will probably do so
  until BEA changes the way
  they handle class loading. I haven't evaluated
  WebLogic 6 to see if it works
  as expected.
 


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Re: WebLogic NullPointer from PageContextImpl.getAttribute

[Wong Kok Wai]

As per specs: struts.jar is under WEB-INF/lib and all
the classes in WEB-INF/classes

--- Tim Kuntz [EMAIL PROTECTED] wrote:
 How do you have your environment setup? Where did
 you put the Struts.jar and 
 your application classes?
 


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Re: WebLogic NullPointer from PageContextImpl.getAttribute

[Wong Kok Wai]

If you are using WLS 5.1, apply the SP8 and the
problems should go away.

--- Tim Kuntz [EMAIL PROTECTED] wrote:
I have been using WebLogic for a while but am new
 to Struts and am having 
 a problem running Struts as an explicit WebLogic Web
 application 
 (weblogic.httpd.webApp.myapp) due to a problem with
 WebLogic class loaders.
 


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Re: WebLogic NullPointer from PageContextImpl.getAttribute

[Tim Kuntz]

Thanks. SP8 corrects the PageContextImpl.getAttribute problem but the
ClassCastException remains and will probably do so until BEA changes the way
they handle class loading. I haven't evaluated WebLogic 6 to see if it works
as expected.

- Original Message -
From: "Wong Kok Wai" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, December 30, 2000 3:08 AM
Subject: Re: WebLogic NullPointer from PageContextImpl.getAttribute


 If you are using WLS 5.1, apply the SP8 and the
 problems should go away.

 --- Tim Kuntz [EMAIL PROTECTED] wrote:
 I have been using WebLogic for a while but am new
  to Struts and am having
  a problem running Struts as an explicit WebLogic Web
  application
  (weblogic.httpd.webApp.myapp) due to a problem with
  WebLogic class loaders.
 


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WebLogic NullPointer from PageContextImpl.getAttribute

[Tim Kuntz]

   I have been using WebLogic for a while but am new to Struts and am having 
a problem running Struts as an explicit WebLogic Web application 
(weblogic.httpd.webApp.myapp) due to a problem with WebLogic class loaders.

   The problem is misleading because the error message is a 
NullPointerException from the pageContext.getAttribute() call when 
retrieving the MessageResource (MR) instance. But, if you modify the code 
slightly to retrieve the MR instance directly from the ServletContext you 
get a ClassCastException. To my knowledge, this occurs because the MR is 
being created/stored by the ActionServlet but is retrieved as part of the 
JSP servlet. WebLogic uses 2 different class loaders for these so a 
ClassCast occurs.

   The only way I can eliminate the error is to move the Struts classes and 
my application classes to the WebLogic classpath versus the dynamic 
classpath (WEB-INF/classes). Has anyone else found a workaround for this 
problem?

Thanks,
Tim Kuntz
[EMAIL PROTECTED]
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