Fwd: [gwt-contrib] Translated to null.nullField when using JsInterop & @JsType

Hello, 

The newest @JsType feature is really very fascinating, and works in most cases. The only issue i found was the wrong null.nullField javascript output.

the compile command:

java -cp xxx com.google.gwt.dev.Compiler -war xxx -XnoclassMetadata -XnocheckCasts -XjsInteropMode JS -XclosureCompiler -style PRETTY com.goodow.realtime.store.StoreProd

Java code:

public CollaborativeOperation compose(JsonArray operations) {

    final CollaborativeOperation first = operations.<CollaborativeOperation> get(0);

    if (operations.length() == 1) {

      return first;

    }

    final JsonArray components = Json.createArray();

    operations.forEach(...);

    return new CollaborativeOperation(first.userId, first.sessionId, components);

  }

translated to the following javascript:

 function $compose(operations) {

  var components;

  components = operations[0];

  if (1 == operations.length) {

    return components;

  }

  components = [];

  $forEach(operations, new CollaborativeTransformer$1(components));

  return new CollaborativeOperation(null.nullField, null.nullField, components);

}

There's an easy workaround to fix this: using the -draftCompile options when compilation. Here is the full compilation log:

https://travis-ci.org/goodow/realtime-store/builds/28777579 (search for ./gwt-compile.sh)

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