java.lang.NoClassDefFoundError: This exception has no message.

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505 error after deploying an application in weblogic but runs in tomcat

This exception has no message.

java.lang.NoClassDefFoundError	at jsp_servlet.__index._jspService(__index.java:148)	at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)	at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1053)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:387)	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6310)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)	at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3622)	at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2569)	at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)	at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)