public final int read(byte[] b, int off, int len) throws IOException {
        int result = src.read(b, off, len);
        if (result != -1) {
            pointer += result;
        }
        return result;
    }
Forwards the request to the real <code>InputStream</code>.
plugins/svg-plugin/batik-codec-fix/src/main/java/org/apache/batik/ext/awt/image/codec/util/ForwardSeekableStream.java