private void verifyMetaDataAndReciever(String className, boolean sawMetadata, String humanName) {
        if ((className == null || className.length() == 0) && sawMetadata)
            throw new InvalidPackConfiguration(FILENAME, humanName+" metadata has been seen, but no receiver intent-filter found!");
        else if ((className != null && className.length() > 0) && !sawMetadata)
            throw new InvalidPackConfiguration(FILENAME, humanName+" receiver intent-filter has been seen, but no meta-data found!");
    }