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

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java.lang.ClassCastException:
at undefined.$Proxy13.custOrdRpt(Unknown Source)
at custOrdRpt.CustOrdRptController.custOrdRpt(CustOrdRptController.jpf:96)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.netui.pageflow.FlowController.invokeActionMethod(FlowController.java:1504)
at com.bea.wlw.netui.pageflow.FlowController.getActionMethodForward(FlowController.java:1430)
at com.bea.wlw.netui.pageflow.FlowController.internalExecute(FlowController.java:761)
at com.bea.wlw.netui.pageflow.PageFlowController.internalExecute(PageFlowController.java:211)
at com.bea.wlw.netui.pageflow.FlowController.execute(FlowController.java:591)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:651)
at com.bea.wlw.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:527)
at com.bea.wlw.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:152)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.superForward(PageFlowRequestProcessor.java:1304)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor$DefaultHttpRedirector.forward(PageFlowRequestProcessor.java:1320)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.doForward(PageFlowRequestProcessor.java:1200)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.processForwardConfig(PageFlowRequestProcessor.java:1094)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:651)
at com.bea.wlw.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:527)
at com.bea.wlw.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:152)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.superForward(PageFlowRequestProcessor.java:1304)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor$DefaultHttpRedirector.forward(PageFlowRequestProcessor.java:1320)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.doForward(PageFlowRequestProcessor.java:1200)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:638)
at com.bea.wlw.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:527)
at com.bea.wlw.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:152)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
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:3635)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)

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