class UnsafeByteArrayInputStream extends InputStream {

    @Override
    public int read() {
        return (mPosition < mLimit) ? (mData[mPosition++] & 0xff) : -1;
    }

    public  UnsafeByteArrayInputStream(byte buf[]);
    public  UnsafeByteArrayInputStream(byte buf[], int offset);
    public  UnsafeByteArrayInputStream(byte buf[], int offset, int length);

}