>
> Uncaught ReferenceError:
> java_lang_Class_createForClass__Ljava_lang_String_2Ljava_lang_String_2Ljava
> _lang_String_2Ljava_lang_Class_2Ljava_lang_Class_2 is not defined
>
I have seen this error before when using GWT runAsync.. so I do believe this
is somewhat of an issue with GWT compiler.
>From what I remember, my RunAsyncCallback was something like this --
new RunAsyncCallback() {
public void onSuccess() {
someMethod();
}
}
public void someMethod() {
Log.debug("some debug message");
//nothing after this..
}
Now, post compilation, someMethod() would no longer exist because of the
optimizations GWT does, but the onSuccess() method would still call it. My
project was a bit more complex with a few more indirection layers, but this
was the essences of the problem.
To fix it, I just got rid of the useless method, and put some non-trivial
code in the onSuccess() method. I thought I would research and file a bug
back then, but I wasn't able to reproduce the issue in a trivial codebase
that I could share with the GWT developers.
I haven't used GIN, and the generated classes you pasted are a bit too much
for me. But can you verify you don't have any trivial methods in your code?
Just don't leave empty methods and try again.. I think that should solve the
problem.
--Sri
P.S. I am sorry I can't provide any more specific information. It's 6 months
since I encountered the problem, and it was on a project I no longer have
access to.
On 13 April 2010 03:30, PhilBeaudoin <[email protected]> wrote:
> Hi,
>
> I'm using the new google-gin AsyncProvider to implement code splitting
> in my GWT application. It works well in most situations, but I ran
> into a strange issue recently which might hint at a problem in GWT
> itself.
>
> My app works well in development mode: I call
> myAsyncProvider.get(myCallback) and the code makes it to the
> onSuccess() method of my AsyncCallback eventually.
>
> When I compile my app to javascript, however, the code makes it all
> the way to myAsyncProvider.get() and beyond, but then neither my
> onSuccess() nor my onFailure() is executed. I also get the following
> javascript error (compiled with -style DETAILED):
> Uncaught ReferenceError:
> java_lang_Class_createForClass__Ljava_lang_String_2Ljava_lang_String_2Ljava
> _lang_String_2Ljava_lang_Class_2Ljava_lang_Class_2 is not defined
>
> I've pasted the entire generated javascript here:
> http://pastebin.com/iQ44u3bY
> The error is on line 322.
>
> I also posted the java files generated by google-gin and GWT there:
> AsyncLoader1*.java: http://pastebin.com/b1tfWD9m
> AsyncLoader2*.java: http://pastebin.com/7Jh5Rqvv
> MyGinjectorImpl.java: http://pastebin.com/cyamcuKg
>
> For info: It's AsyncProvider<MainPagePresenter> that fails. The
> AsyncProvider<ResponsePresenter> works fine. Also, if I remove the
> AsyncProvider<ResponsePresenter> then the
> AsyncProvider<MainPagePresenter> works.
>
> According to Peter Schmitt, "it almost looks as if some piece of code
> is calling the GWT function createForClass[1] but can't find it. Maybe
> an issue with GWT's code splitting?"
>
> [1]
> http://www.google.com/codesearch/p?hl=en#MTQ26449crI/com/google/gwt/emul/java/lang/Class.java&q=createForClass&sa=N&cd=2&ct=rc
>
>
> For reference, the original thread on the google-gin board:
>
> http://groups.google.com/group/google-gin/browse_thread/thread/995db1ebccbc3104
>
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