This may or may not help you but I want to share it with you. The moment
GWT 2.8 release was announced I tried it and ran into similar problems. I
don't remember the exact error messages but it was about the UiBinder.
Without further attempts I just gave up. After seeing your post I gave it a
try and this time it worked. I have no clue what fixed other than a clean
build.
On Monday, November 21, 2016 at 4:07:42 PM UTC-5, jgindin wrote:
>
> In our app, we have a UiBinder widget (SomeViewImpl) which has, as its
> root element, a widget which itself is a UiBinder widget
> (CollectionManagementLayout).
>
> My UiBinder declaration in SomeViewImpl looks like this:
> interface CollectionManagementPanelUiBinder extends
> UiBinder<CollectionManagementLayout, SomeViewImpl> {}
>
>
> The UiBinder XML for the SomeViewImpl class starts off like this:
> <collectionmanagement:CollectionManagementLayout ui:field="layout">
> . . .
> </collectionmanagement:CollectionManagementLayout>
>
>
>
> This code compiles just fine in GWT 2.7, but with 2.8, I get the following
> error:
>
> [ERROR] Errors in
> 'generated://09CDEAB17C92C8C75AB00C9F2F0DF847/com/myco/myproduct/client/stuff/collections/SomeViewImpl_CollectionManagementPanelUiBinderImpl.java'
> [ERROR] Line 17: The interface UiBinder cannot be implemented more
> than once with different arguments:
> UiBinder<CollectionManagementLayout,SomeViewImpl> and
> UiBinder<CollectionManagementLayout,SomeViewImpl>
> See snapshot:
> /tmp/com.myco.myproduct.client.stuff.collections.SomeViewImpl_CollectionManagementPanelUiBinderImpl3472216513944602205.java
> Tracing compile failure path for type
> 'com.myco.myproduct.client.stuff.collections.SomeViewImpl_CollectionManagementPanelUiBinderImpl'
> [ERROR] Errors in
> 'generated://09CDEAB17C92C8C75AB00C9F2F0DF847/com/myco/myproduct/client/stuff/collections/SomeViewImpl_CollectionManagementPanelUiBinderImpl.java'
> [ERROR] Line 17: The interface UiBinder cannot be implemented
> more than once with different arguments:
> UiBinder<CollectionManagementLayout,SomeViewImpl> and
> UiBinder<CollectionManagementLayout,SomeViewImpl>
>
>
>
> The generated code looks like this:
> public class SomeViewImpl_CollectionManagementPanelUiBinderImpl
> implements UiBinder<CollectionManagementLayout, SomeViewImpl>,
> SomeViewImpl.CollectionManagementPanelUiBinder {
>
>
> I worked around this by changing the UiBinder declaration in SomeViewImpl
> to be:
> interface CollectionManagementPanelUiBinder extends UiBinder<Widget,
> SomeViewImpl> {}
>
>
> *My question is*: Should this have failed in GWT 2.7? Or is there a bug
> in GWT 2.8?
>
> thanks,
>
> jay
>
>
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