NoClassDefFoundError in JCO

[Former Member]

Hi, we made a Java System Copy, everthing went smooth, except for the JCo Connections.

We have configured them again pointing to the new systems but evertime that I click on test in the Web Dynpro Content Administrator, a WebDynpro error comes up:

java.lang.NoClassDefFoundError

at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.checkPoolEntry(AbstractJCOClientConnection.java:288)

at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.getClient(AbstractJCOClientConnection.java:397)

at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.onActionTestConnection(JCOConnectionsDetails.java:230)

at com.sap.tc.webdynpro.tools.explorer.wdp.InternalJCOConnectionsDetails.wdInvokeEventHandler(InternalJCOConnectionsDetails.java:303)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)

at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67)

at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doHandleActionEvent(WindowPhaseModel.java:420)

at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:132)

at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:321)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:713)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:666)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:250)

at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:150)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:53)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

Any help would be appreciated.

Cheers

[Former Member]

Hi,

Chk this thread,

[Former Member]

Hi guys, thanks for your help, I was able to solve my problem.

I had to change a property in the JVM settings after the System Copy. The property was

-Djco.trace_path=<path to configtool>

in the instace server properties.

Regards,

Pablo.

[former_member192434]

Hi

First check you can ping the JCo if yes check weather the User Id & Password mention of backend R/3 systems is proper or not.

Or

Check this,

1) have you configured the SLD for the R/3 Connection.

2) Is the SLD configured fine.

3)You have made JCO according to the R/3 Name made in the SLD.

it seems that the JCO is not able to find the R/3 server details. are u trying to test the default provided JCO ?

For more detials

http://help.sap.com/erp2005_ehp_03/helpdata/EN/06/24d17099f2f245822fce0ba1ab4065/frameset.htm

Thanks

[Former Member]

Thanks Anup,

The same comes up when I click on Ping, exactly the same one.

The user and password shouldn't be a problem, when user/password are incorrect an error like LOGON FAILURE is shown, but not a Java Runtime Error.

Cheers

[former_member192434]

Hi Pablo,

Check this forum link

Configuration are done properly or not

Thanks