FULL PRODUCT VERSION :
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode, sharing)


ADDITIONAL OS VERSION INFORMATION :
WindowsXP SP2

A DESCRIPTION OF THE PROBLEM :
When I execute javac with my 'plain' code.
It prints some unreadable texts and beep loudly.

I can't copy the console out....
It seems like this....
--------------------------- << not included

with some characters in a few line.....
and types source code somewhat incorectly..
------------------------------------------ << not included

So I put my code to my linux and tried again. (Redhat9 + JDK1.5)
and then it works

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Here is my full source code......


import java.util.concurrent.*;

public class Test {
    public static void main(String[] args) {
        ConcurrentHashMap<Integer, String> map =
        new ConcurrentHashMap<Integer, String>();
        Thread s = new Sup(map);
        s.start();
        Thread c = new Con(map);
        c.start();

        try {
            Thread.sleep(10000);
        } catch (InterruptedException ie) {
        }
        s.interrupt();
        c.interrupt();
/*
        for (int i = 0;i < 100000; i++) {
            map.put(i, Integer.toString(i));
        }
*/
    }
}

class Sup extends Thread {

    public Sup(ConcurrentHashMap<Integer, String> map) {
        super();
        this.map = map;
    }

    public void run() {
        while (!super.interrupted()) {
            for(int i = 0; i < 100; i++) {
                this.map.put((int)(Math.random() * 10000), Integer.toString(i));
            }
            try {
                Thread.sleep(100L);
            } catch (InterruptedException ie) {
                break;
            }
        }
    }

    private ConcurrentHashMap<Integer, String> map;
}


class Con extends Thread {
    public Con(ConcurrentHashMap<Integer, String> map) {
        super();
        this.map = map;
    }
    public void run() {
        while (!super.interrupted()) {
            for (Integer i : this.map.keySet()) {
                System.out.print(i + " ");
            }
            System.out.println();
            try {
                Thread.sleep(100);
            } catch (InterruptedException ie) {
                break;
            }
        }
    }
    private ConcurrentHashMap<Integer, String> map;
}


try to compile it on windowsXPSP2 + JDK1.5

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Nothing (Compile)
ACTUAL -
I can't copy the console output but it seems like this.


??   1 X
with some characters in a few line.....
and types source code somewhat incorectly..


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.concurrent.*;

public class Test {
    public static void main(String[] args) {
        ConcurrentHashMap<Integer, String> map =
        new ConcurrentHashMap<Integer, String>();
        Thread s = new Sup(map);
        s.start();
        Thread c = new Con(map);
        c.start();

        try {
            Thread.sleep(10000);
        } catch (InterruptedException ie) {
        }
        s.interrupt();
        c.interrupt();
/*
        for (int i = 0;i < 100000; i++) {
            map.put(i, Integer.toString(i));
        }
*/
    }
}

class Sup extends Thread {

    public Sup(ConcurrentHashMap<Integer, String> map) {
        super();
        this.map = map;
    }

    public void run() {
        while (!super.interrupted()) {
            for(int i = 0; i < 100; i++) {
                this.map.put((int)(Math.random() * 10000), Integer.toString(i));
            }
            try {
                Thread.sleep(100L);
            } catch (InterruptedException ie) {
                break;
            }
        }
    }

    private ConcurrentHashMap<Integer, String> map;
}


class Con extends Thread {
    public Con(ConcurrentHashMap<Integer, String> map) {
        super();
        this.map = map;
    }
    public void run() {
        while (!super.interrupted()) {
            for (Integer i : this.map.keySet()) {
                System.out.print(i + " ");
            }
            System.out.println();
            try {
                Thread.sleep(100);
            } catch (InterruptedException ie) {
                break;
            }
        }
    }
    private ConcurrentHashMap<Integer, String> map;
}
---------- END SOURCE ----------