Because your request is asynchron and your JSNI code does not wait at the
$wnd.$.get call. Your method will complete immediately and return nothing
as it does not have a return statement.
You would need to change your getData() method to something like:
public native void getData(String trainerName, Callback callback)/*-{
$wnd.$.get( "http://testdastuff.dev/trainerstats";, { trainer: trainerName}
)
.fail(function() {
[email protected]::onFail()();
})
.done(function( data ) {
[email protected]::onSuccess(Ljava/lang/String;)(data);
});
}-*/;
-- J.
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