java.lang.LinkageError when loading some modules in web application

[snowfrost Ch]

Hi everyone,
I have a java web application that I have deployed to weblogic server 9.2 in my PC and the website is able to load and allow me to login to the system. But when I click on some of my modules(in jsp) , the page direct give me the below error. The weird part is that some of my other modules are able to load and allow me to do search/add.

java.lang.LinkageError: loader constraints violated when linking common/ErrorPackager class
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at weblogic.utils.classloaders.GenericClassLoader.defineCodeGenClass(GenericClassLoader.java:494)
at weblogic.utils.classfile.utils.CodeGenerator.generateClass(CodeGenerator.java:73)

Is there a limitation of jar files that I can deploy to the weblogic ? I have over 200 plus jar files and i am using jdk 5. Appreciate anyone who can advise me how to resolve the issues.

Thank You.