CODEWITHSUNDEEP
exceptiongwtservicerpc
user1961659
user1961659

Reputation: 87

gwt, rpc service, StatusCodeException, and no logs available

sorry if my english is bad.

I have a problem while calling one of my GWT services. On the client side, I have the following error.

    [ERROR] com.google.gwt.user.client.rpc.StatusCodeException: 500 The call failed on the server; see server log for details
    [ERROR]     at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:209)
    [ERROR]     at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
    [ERROR]     at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395)
...

Unhappily, I can't find any information related to this error on the server logs. I'm in devlopment mode, and the only thing I can see in jetty is 

 [ERROR] 500 - POST /my/maping (127.0.0.1) 57 bytes

However, I know that my service implementation is called and that it returns a result without throwing any exception (because I use logs just before the return...) .

I have seen that this problem could be a serialization issue, but I really don't see where I miss something to make my objects serializables, ( plus, gwt compilator generally says me when something is not serializable).

And my/mapping should be finely defined, because it was working previously, and I am pretty sure that I have not modified anything related to this...

Finally, I don't find any interesting answer to my problem. If you have any ideas, thanks in advance for your help.

ps: I use gwt 2.5.0-rc2.

Upvotes: 2

Views: 5888

Answers (2)

Jason Washo
Jason Washo

Reputation: 625

If you are using JPA and the class relations are setup incorrectly, a general 500 will be thrown without an specific error messages

Upvotes: 0

David
David

Reputation: 4285

This problem is mostly related to a class that forgot to implement the isSerializable or Serializable interface. Also Check if all subclassess in that class also implement isSerializable or Serializable interface.

Then verify that all class have a default no argument constructor.

Upvotes: 9

Related Questions