Thanks Jens. The NullPointerException was my first line of investigation.
But there are no fields, object or method called 'inspectivity' - it's part
of the package names. When debugging in Chrome DevTools, the exception
occurred while it was executing the "method declaration line", AFAIK the
GWT boilerplate code before it executes the actual method.
Unfortunately I can't share the full code, but I think I've pinned it down
to invoking callbacks based with generics from JsInterop (similar code is
working with JSNI callbacks):
public interface FileCallback<S, E> {
public void onSuccess(S entry);
public void onFailure(E error);
}
public abstract class DelegatingFileCallback<S> implements FileCallback<S,
FileError> {
private static final Logger log =
Logger.getLogger(DelegatingFileCallback.class.getName());
private final FileCallback<?, FileError> delegate;
private final String operation;
protected DelegatingFileCallback(FileCallback<?, FileError> delegate,
String operation) {
this.delegate = delegate;
this.operation = operation;
}
@Override
public final void onFailure(FileError error) {
log.warning(error.buildErrorMessage(operation, ""));
delegate.onFailure(error);
}
}
I'm gradually replacing these callbacks by specific ones and it seems to be
working.
Thanks,
Thomas
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