com.google.gwt.user.client.rpc.SerializationException

[Costa]

Please help with error below.

Is this mean that the class com.voxbone.voxAPI.Country could not be
serialize or it is just simple
NoClassDefFoundError ?

Exception while dispatching incoming RPC call
com.google.gwt.user.client.rpc.SerializationException: Type
'org.dozer.MappingException' was not included in the set of types
which can be serialized by this SerializationPolicy or its Class
object could not be loaded. For security purposes, this type will not
be serialized.: instance = org.dozer.MappingException:
java.lang.NoClassDefFoundError: Could not initialize class
com.voxbone.voxAPI.Country
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:
610)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:
129)
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
$ValueWriter$8.write(ServerSerializationStreamWriter.java:152)
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java:
534)
at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:
609)
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
383)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
581)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
188)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
224)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:
710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

[AlexG]

Hi Costa,

please remind, that only classes are serializable, which fields are
serializable too.
In your case, as the error-message says, the MappingException doens´t
seem to be
serializable. I don´t know why you need this Exception in your class,
or if you
even wrote this class. Maybe you can refactor this class, so that you
are sure, that
only serializable fields are in it.

This should solve your problem.

Greets Alex