public CachingOutputStream(OutputStream os) 
{
        this.receiver = os;
        this.buf = new byte[1024];
        this.bufCount = 0;
}

 public  void close() throws IOException 
{
        this.receiver.close();
}

 public  void flush() throws IOException 
{
        this.receiver.flush();
}

 public byte[] getContent() 
{
        byte newbuf[] = new byte[this.bufCount];
        System.arraycopy(this.buf, 0, newbuf, 0, this.bufCount);
        return newbuf;
}

 public  void write(int b) throws IOException 
{
        this.receiver.write(b);
        int newcount = this.bufCount + 1;
        if (newcount  > this.buf.length) {
            byte newbuf[] = new byte[Math.max(this.buf.length < <  1, newcount)];
            System.arraycopy(this.buf, 0, newbuf, 0, this.bufCount);
            this.buf = newbuf;
        }
        this.buf[this.bufCount] = (byte)b;
        this.bufCount = newcount;
}

 public  void write(byte[] b) throws IOException 
{
        this.write(b, 0, b.length);
}

 public  void write(byte[] b,
    int off,
    int len) throws IOException 
{
        this.receiver.write(b, off, len);
        if (len == 0) return;
        int newcount = this.bufCount + (len-off);
        if (newcount  > this.buf.length) {
            byte newbuf[] = new byte[Math.max(this.buf.length < <  1, newcount)];
            System.arraycopy(this.buf, 0, newbuf, 0, this.bufCount);
            this.buf = newbuf;
        }
        System.arraycopy(b, off, this.buf, this.bufCount, len);
        this.bufCount = newcount;
}