*
     * @param zipInputStream the ZIP file input stream (must not be {@literal null})
     * @param handler the handler to process classes (must not be {@literal null})
     */
    public static void forEach(final ZipInputStream zipInputStream, final ClassHandler handler) {
        assertArgumentNotNull("zipInputStream", zipInputStream);
        assertArgumentNotNull("handler", handler);

    }

    /**
     * A method that wraps the exception handling of {@link ZipInputStream#getNextEntry()}.
     *
     * @param zis
     *            {@link ZipInputStream}. Must not be {@literal null}.
     * @return {@link ZipEntry}
     * @see ZipInputStream#getNextEntry()
     */
    public static ZipEntry getNextEntry(final ZipInputStream zis) {
        assertArgumentNotNull("zis", zis);

        try {

        final String themeName = getThemeName(artifact);
        if (logger.isDebugEnabled()) {
            logger.debug("Theme: {}", themeName);
        }
        try (ZipInputStream zis = new ZipInputStream(Files.newInputStream(jarPath))) {
            ZipEntry entry;
            while ((entry = zis.getNextEntry()) != null) {
                if (!entry.isDirectory()) {

     *
     * @param zipInputStream
     *            the ZIP file input stream (must not be {@literal null})
     * @param handler
     *            the handler to process resources (must not be {@literal null})
     */
    public static void forEach(final ZipInputStream zipInputStream, final ResourceHandler handler) {
        assertArgumentNotNull("zipInputStream", zipInputStream);

            this.rootDir = rootDir;
            this.zipUrl = zipUrl;
            this.prefix = prefix;
        }

        private void loadFromZip(final URL zipUrl) {
            final ZipInputStream zis = new ZipInputStream(URLUtil.openStream(zipUrl));
            try {
                ZipEntry entry = null;
                while ((entry = ZipInputStreamUtil.getNextEntry(zis)) != null) {