It throws the following errors and they are thrown when I try to
create an object of the JFreeChart library:
[ERROR] javax.servlet.ServletContext log: Exception while dispatching
incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract java.lang.String
com.naic.client.UpdatePlotsService.getImagesPaths(java.lang.String)'
threw an unexpected exception: java.lang.NoClassDefFoundError:
javax.swing.event.EventListenerList is a restricted class. Please see
the Google App Engine developer's guide for more details.
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
378)
...
Caused by: java.lang.NoClassDefFoundError:
javax.swing.event.EventListenerList is a restricted class. Please see
the Google App Engine developer's guide for more details.
at
com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:
51)
...
com.google.gwt.user.client.rpc.StatusCodeException: 500 The call
failed on the server; see server log for details
at
com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:
192)