CallStackTest.java

@UiThread
void onUiThread() {}

void unannotatedCallsUiThread() {
    onUiThread();
}

@WorkerThread
void testMethodAnnotations(TextView textView) {
    textView.setText(""); // correct: displays warning.
    onUiThread();         // correct: displays warning.

    // UNEXPECTED: the following method does not display a warning.
    // I expect it to because it calls a @UiThread annotated method.
    unannotatedCallsUiThread();
}