Message bundles always use String.format() even if no format is used

@Message("Test message")
RuntimeException testMessage();

@Override
public final RuntimeException testMessage() {
    final RuntimeException result = new RuntimeException(String.format(testMessage$str()));
    final StackTraceElement[] st = result.getStackTrace();
    result.setStackTrace(Arrays.copyOfRange(st, 1, st.length));
    return result;
}