help with exception

[Magnus]

Hi,

what could be the cause of the exception below?

All my classes in the shared folder implement IsSerializable.

And: from the user's perspective everything works... #-)

Thanks

Magnus

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Jul 26, 2013 2:43:47 PM org.apache.catalina.core.ApplicationContext log

SEVERE: Exception while dispatching incoming RPC call

com.google.gwt.user.client.rpc.SerializationException: Type 'bcs.shared.sys.Language' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.For security purposes, this type will not be serialized.: instance = DE

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:667)

        at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:126)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter$ValueWriter$8.write(ServerSerializationStreamWriter.java:153)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java:587)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass(ServerSerializationStreamWriter.java:757)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl(ServerSerializationStreamWriter.java:796)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:669)

        at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:126)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter$ValueWriter$8.write(ServerSerializationStreamWriter.java:153)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java:587)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass(ServerSerializationStreamWriter.java:757)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl(ServerSerializationStreamWriter.java:796)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:669)

        at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:126)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter$ValueWriter$8.write(ServerSerializationStreamWriter.java:153)

        at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java:587)

        at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:605)

        at com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess(RPC.java:471)

        at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:563)

        at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)

        at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)

        at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)

        at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)

        at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)

        at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)

        at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)

        at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)

        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)

        at java.lang.Thread.run(Thread.java:662)