Error after migration - Used DC

[Former Member]

Dear All,

We are currently migrating our custom Web Dynpro Java applications from 7.0 to 7.3. In one of the applications, an error as below is thrown on previewing the deployed iview on portal. The Build was OK in NWDS.

Caused by: com.sap.tc.webdynpro.services.exceptions.ApplicationFaultException: wdInvokeEventHandler: exception thrown in this user coding area

at com.sap.tc.webdynpro.progmodel.generation.DelegatingWindow.invokeEventHandler(DelegatingWindow.java:125)

at com.sap.tc.webdynpro.progmodel.window.ViewController.invokeInboundPlugHandler(ViewController.java:446)

at com.sap.tc.webdynpro.progmodel.window.InterfaceView.invokeInboundPlugHandler(InterfaceView.java:173)

at com.sap.tc.webdynpro.clientserver.cal.NavigationManager.processInboundPlugQueue(NavigationManager.java:305)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:595)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.doPreprocessing(ClientApplication.java:1457)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doPreprocessing(ApplicationSession.java:660)

... 75 more

Caused by: java.lang.ClassCastException: Cannot cast class com.sun.proxy.$Proxy2531 to interface de.abt.hr.web.util.wdp.IExternalUtilCompInterface (found matching interface de.abt.hr.web.util.wdp.IExternalUtilCompInterface loaded by abt.in/common@com.sap.engine.boot.loader.ResourceMultiParentClassLoader@32f50519@alive, but needed loader abt.in/cal@com.sap.engine.boot.loader.ResourceMultiParentClassLoader@6dd5c7ff@alive)

In the component properties, the Used Components were removed and reassingned. Still the error continues.

Requesting your assistance in finding a solution.

Thanks & Regards,

Anoop.

[former_member836897]

Having same issue can anyone help me on this exception.

[Former Member]

Dear Anoop,

Please check this link.

Thanks & Regards,

Patralekha