Error in compiled version of AsyncProvider

[PhilBeaudoin]

I've been a happy user of the AsyncProvider for a while now, however I
ran into a strange problem recently and I've narrowed it down to what
I think is code generated by the AsyncProvider.

Here's my problem...

When running my app in development mode, everything works fine. 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, it make it all the way
to myAsyncProvider.get() and beyond. (I confirmed with a
Window.alert()), but the 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 don't have a minimal example where this happens, but you can look at
my MVP implementation of the GWT sample at:
http://code.google.com/p/gwt-platform/
The SVN repository for this sample is:
http://gwt-platform.googlecode.com/svn/samples/gwtpsample
Starting this in development mode works, but you'll get the error when
compiled. The error also shows up in the AppEngine version at:
http://gwtpsample.appspot.com/

[*] In development mode, I've noticed that AsyncProvider.get() seems
to be blocking: the code after the get() is only executed after the
call to onSuccess(). Is this the normal behaviour?

[Peter Schmitt]

Weird. Would you mind running your compile with the -gen option to see what Gin generates? You should be able to see your generated AsyncProvider in there and maybe we can spot any errors in that?

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[Philippe Beaudoin]

Really weird... I just tried compiling it on my home computer and it
worked. Maybe there's a difference in the GWT version I'm using here
and at work. (I'm with 2.0.3 here.) I'll check this out Monday and
come back to you.

[Philippe Beaudoin]

Hmmm... Stranger and stranger. Hoping my problem was solved, I
deployed to AppEngine, but then this version failed. So I recompiled
locally and it failed with the exact same error as before.

I'm not quite sure which -gen file you're talking about, but here's
what I think could be relevant:
AsyncLoader1*.java: http://pastebin.com/b1tfWD9m
AsyncLoader2*.java: http://pastebin.com/7Jh5Rqvv
MyGinjectorImpl.java: http://pastebin.com/cyamcuKg

They look pretty good to me, although I'm not quite sure what all
those $ signs do in java... Any other -gen file you'd like to see?

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. (Maybe it's just flakyness
too...)

Cheers,

Philippe

[Peter Schmitt]

I couldn't detect any issues in the code. No idea why the error occurs. 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? I'd ask on the GWT list.

[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

[PhilBeaudoin]

Just did. For cross-reference if anybody is interested in this, it's
here:
http://groups.google.com/group/google-web-toolkit/browse_thread/thread/7965e808ca80fbc6

On Apr 12, 2:35 pm, Peter Schmitt <ara...@gmail.com> wrote:
> I couldn't detect any issues in the code. No idea why the error occurs. 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? I'd ask on the GWT list.
>

> [1]http://www.google.com/codesearch/p?hl=en#MTQ26449crI/com/google/gwt/e...

> > >> On Fri, Apr 9, 2010 at 12:42, PhilBeaudoin <philippe.beaud...@gmail.com

> > >>> google-gin+...@googlegroups.com<google-gin%2Bunsubscribe@googlegrou ps.com>

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