Re: gwt dispatch very strange error

[David Peterson]

It seems to be having trouble serializing the object you're sending
over the wire - or more specifically, the object that is being put
into the exception. ServiceException can contain other exceptions, and
it seems like the exception that is getting thrown can't be
serialized, probably due to a field that it contains.

David

On Fri, Apr 1, 2011 at 7:29 PM, mariyan nenchev
<nenchev...@gmail.com> wrote:
> Hi,
> I integrated gwt-dispatch 1.1.0 with spring, but when i try to "execute"
> gwt-dispatch Action it sends the request but the result fails and calls
> onFailure() with exception
> net.customware.gwt.dispatch.shared.ServiceException [cause:
> java.lang.NullPointerException]
> <br/> at
> net.customware.gwt.dispatch.shared.ServiceException_FieldSerializer.instantiate(ServiceException_FieldSerializer.java:15)
> <br/> at
> net.customware.gwt.dispatch.shared.ServiceException_FieldSerializer.create(ServiceException_FieldSerializer.java:24)
> <br/> at
> com.google.gwt.user.client.rpc.impl.SerializerBase.instantiate(SerializerBase.java:115)
> <br/> at
> com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:111)
> <br/> at
> com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:119)
> <br/> at
> com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:216)
> <br/> at
> com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
> <br/> at
> com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395)
> <br/> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> <br/> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> <br/> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> <br/> at java.lang.reflect.Method.invoke(Method.java:597)
> <br/> at
> com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
> <br/> at
> com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
> <br/> at
> com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
> <br/> at
> com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326)
> <br/> at
> com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207)
> <br/> at
> com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:129)
> <br/> at
> com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
> <br/> at
> com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:…
> Do you have any suggestions?
> Regards.