Re: gwt-dispatch with spring exception on async request

You can debug and put a breakpoint in at com.google.gwt.user.client.rpc.impl.SerializerBase.instantiate(SerializerBase.java:115)

to see why fail.

2011/4/1 mariyan nenchev <nenchev.mariyan@gmail.com>

Hi,

I integrated gwt-dispatch with spring, but when i try to "execute" gwt-dispatch Action it 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.

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