private final Set<String> packageNames;
    private final TrieSet packagePrefixes;
    private final TrieSet resourcePrefixes;
    private final Set<String> resourceNames;
    private final Set<String> classNames;
    private final Set<String> disallowedClassNames;
    private final TrieSet disallowedPackagePrefixes;

    static {
        EXT_CLASS_LOADER = ClassLoaderUtils.getPlatformClassLoader();