I rebuilt the toolkit from source and narrowed down the issue a bit
myself, definitely seems to have something to do with inner classes
being defined inside generic classes.  Unfortunately my codebase is
pretty big and we do this in multiple spots, so I'm still trying to
get around it.  Will see if i can make similar changes to what Raman
has done... but I think that the code around this part of resolving
generic types could use a little more error handling to identify these
cases at least, because without compiling from source with my own
debug statements I wasn't even able to figure out which classes it
first started complaining about.

cheers
Dan

On Jan 8, 4:23 am, Raman <rama...@gmail.com> wrote:
> Looks like I have finally solved the problem.
>
> The case was something like this.
> I am using ExtGWT which has a class TreePanel with an inner class
> TreeNode, which looks like below:
>
> public class TreePanel<M extends ModelData> {
>
> ------------
> -------------
>     class TreeNode {
>       ------------
>       -----------
>       private M data;
>     }
> ----------
>
> }
>
> And, since the TreeNode class is public inside TreePanel, I was
> directly using TreeNode class in my code.
>
> I would do:
>
> import ......TrePanel.TreeNode;
> -------------
> --------------
>
> TreeNode node = xxxxxxxxxxxx;
>
> As you can see, TreeNode internally uses the type M, which is not
> defined in the above kind of usage.
> And GWT compiler gets confused when it sees this.
>
> I solved this problem by removing the import statement as accessing
> the TreeNode only in the context of the outer class(TreePanel) like
> this:
>
> TreePanel<MyModeldata>.TreeNode node = xxxxx;
>
> This solved the issue.
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