Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Class not found exception with BOF classes on Weblogic 8.1

Posted on 2008-06-20
15
Medium Priority
?
453 Views
Last Modified: 2008-09-30
HI,

I had deployed a WDK 5.2.5 application on Weblogic 8.1 application server. When I type in the URL for the application, I get a class not found exception. This happens only with the type based and service based business objects.

Could you please tell me if I am missing some jar files that need to be included?

I have the dfc.jar and the dfcbase.jar included in the classpath. Are there some other ones that I need to include?
0
Comment
Question by:hp746
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
  • 3
  • +1
15 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 21833626
>>Could you please tell me if I am missing some jar files that need to be included?

Almost certainly. Please post the exception stack trace
0
 

Author Comment

by:hp746
ID: 21833716
Hi,
Here is the stack trace,

java.lang.NoClassDefFoundError: com/pbsg/pathfinder/bof/type/IPfDocument
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:1647)
at java.lang.Class.privateGetPublicMethods(Class.java:1770)
at java.lang.Class.privateGetPublicMethods(Class.java:1786)
at java.lang.Class.getMethods(Class.java:824)
at com.documentum.web.form.FormProcessor.findMethod(FormProcessor.java:1298)
at com.documentum.web.form.FormProcessor.invokeMethod(FormProcessor.java:1209)
at com.documentum.web.form.FormProcessor.fireActionEvent(FormProcessor.java:777)
at com.documentum.web.form.RecallOperation.execute(RecallOperation.java:98)
at com.documentum.web.form.FormProcessor.openForm(FormProcessor.java:136)
at com.documentum.web.form.WebformTag.doStartTag(WebformTag.java:124)
at jsp_servlet._pathfinder._pages._main.__pf_main_body_launcher._jspService(__pf_main_body_launcher.java:200)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.pbsg.pathfinder.metrics.MetricFilter.doFilter(MetricFilter.java:45)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6458)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
 
 
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 21833914
>>com/pbsg/pathfinder/bof/type/IPfDocument

Is the class you're missing. I don't recognise that - what software is it?
0
Looking for a new Web Host?

Lunarpages' assortment of hosting products and solutions ensure a perfect fit for anyone looking to get their vision or products to market. Our award winning customer support and 30-day money back guarantee show the pride we take in being the industry's premier MSP.

 

Author Comment

by:hp746
ID: 21834042
EMC Documentum.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 21834099
Make sure that class is in one of the jars you mentioned and if so, that they really *are* in the classpath (of the server if necessary in addition to your webapp)
0
 
LVL 92

Expert Comment

by:objects
ID: 21835066
> I have the dfc.jar and the dfcbase.jar included in the classpath

they shouldn't be in your classpath, they should be deployed as part of webapp (in WEB-INF/lib)

you can check the contents of a jar using the jar command

jav tvf <jar file name>

0
 

Author Comment

by:hp746
ID: 21835132
I have them in the WEB-INF/lib folder also. I got the same exception and so had put them in the classpath.
Is there any other reason for this exception other than not including the jar files?

I had also checked the dbor.properties file and all the business objects are registered.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 21835144
Please post the listing of the jars

jar tf <thejar>
0
 
LVL 92

Expert Comment

by:objects
ID: 21835163
> Is there any other reason for this exception other than not including the jar files?

It means the classloader cannot find the specified class. Meaning the jar file is not available to it.
Perhaps also checj the class name and package that they are spelt correctly

eg. is it IPF not IPf

> Please post the listing of the jars
> jar tf <thejar>

Thats already been suggested, stop repeatedly copying other experts comments :)
0
 

Author Comment

by:hp746
ID: 21835288
I had checked for the spellings and they all match.

IPfDocument is a custom interface class which extends IDfBusinessObject provided by the DFC 5.2.5. It is present in dfc.jar which I mentioned earlier. There are a hierarchy of objects provided by documentum and so I am guessing the problem lies in the import of those jars.

Do you happen to specifically know what I am missing other than dfc.jar and dfcbase.jar?
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 21835322
You also need to check

jar tf <thewar>

for those jars
0
 
LVL 92

Expert Comment

by:objects
ID: 21835781
> Do you happen to specifically know what I am missing other than dfc.jar and dfcbase.jar?

u are missing the class mentioned, if it is in that jar then the jar is not being seen by the classloader.

0
 
LVL 2

Accepted Solution

by:
Thlware earned 2000 total points
ID: 22270183
Create the file
MANIFEST.MF
in the folder  WEB-INF
and in that file  put the line below  you should be sorted
Class-Path: dfc.jar dfcbase.jar
0

Featured Post

Learn how to optimize MySQL for your business need

With the increasing importance of apps & networks in both business & personal interconnections, perfor. has become one of the key metrics of successful communication. This ebook is a hands-on business-case-driven guide to understanding MySQL query parameter tuning & database perf

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
This video teaches viewers how to create their own website using cPanel and Wordpress. Tutorial walks users through how to set up their own domain name from tools like Domain Registrar, Hosting Account, and Wordpress. More specifically, the order in…
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.
Suggested Courses

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question