InputStream reader blocking thread

Question

I wrote this InputStream reader to listen to a Socket. This code is in a while(!stop) loop inside the run method of a thread. This reader blocks the thread, and does not print the message.

int read = 0;
byte[] buf = new byte[512];
int index = 0;
try {
    while (!stop && (read = in.read()) != -1) {
        System.out.println("read loop");
        buf[index++] = (byte) read;
    }
} catch (IOException e) {
    e.printStackTrace();
}

Answer 1

The read indeed blocks the thread running if no data is available.

What you want is to read a byte with a timeout ?

Look for answer to this in Is it possible to read from a InputStream with a timeout?