This isn't the full stack trace so it's difficult to be sure, but do you store AbstractEngineResponses in an HTTP session? If so, it seems that the class is no longer compatible with the version stored in your session.
If so, try clearing your cookies. This will create a new session for you. For the future you may want to read through: http://www.javapractices.com/topic/TopicAction.do?Id=45 On Mon, Oct 4, 2010 at 3:33 PM, Marcel Overdijk <[email protected]> wrote: > http://janrain4j.appspot.com/ > javax.servlet.ServletException: java.lang.RuntimeException: > java.io.InvalidClassException: > com.googlecode.janrain4j.api.engage.response.AbstractEngageResponse; > local class incompatible: stream classdesc serialVersionUID = > -8862811237568844288, local class serialVersionUID = > 4656491432091728114 > at > com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: > 240) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 542) > at org.mortbay.jetty.HttpConnection > $RequestHandler.headerComplete(HttpConnection.java:923) > at > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: > 76) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: > 135) > at > com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: > 251) > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > $6.handleBlockingRequest(RuntimePb.java:6784) > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > $6.handleBlockingRequest(RuntimePb.java:6782) > at > com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: > 24) > at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java: > 398) > at com.google.net.rpc.impl.Server$2.run(Server.java:852) > at > com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java: > 56) > at > com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java: > 576) > at com.google.net.rpc.impl.Server.startRpc(Server.java:807) > at com.google.net.rpc.impl.Server.processRequest(Server.java:369) > at > com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java: > 442) > at > com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java: > 319) > at > com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java: > 290) > at com.google.net.async.Connection.handleReadEvent(Connection.java: > 474) > at > com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java: > 831) > at > com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java: > 207) > at com.google.net.async.EventDispatcher.loop(EventDispatcher.java: > 103) > at > com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java: > 251) > at com.google.apphosting.runtime.JavaRuntime > $RpcRunnable.run(JavaRuntime.java:418) > at java.lang.Thread.run(Thread.java:636) > > What should I do? > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
