FULL PRODUCT VERSION :
java version "1.5.0_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
Internal put and take indeces of java.util.concurrent.ArrayBlockingQueue are transient causing serialization to loose them and mixing up the queue items after deserialization.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached source script.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
First: 0
Second: 1

ACTUAL -
First: 0
Second: null


REPRODUCIBILITY :
This bug can be reproduced always.

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

/**
 * Test case.
 */
abstract class SerializeQueue
{
    /**
     * Evaluates this script.
     *
     * @param args the arguments.
     * @throws Exception on errors.
     */
    public static void main(String[] args) throws Exception
    {
        BlockingQueue queue = new ArrayBlockingQueue(5);
        for (int i = 0; i < 5; i++)
        {
            queue.add(new Integer(i));
        }
        Integer first = (Integer) queue.poll();
        System.out.println("First: " + first);
        
        FileOutputStream fos = new FileOutputStream("c:\\temp\\t.tmp");
        ObjectOutputStream oos = new ObjectOutputStream(fos);
        oos.writeObject(queue);
        oos.close();
        fos.close();
        
        FileInputStream fis = new FileInputStream("c:\\temp\\t.tmp");
        ObjectInputStream ois = new ObjectInputStream(fis);
        queue = (BlockingQueue) ois.readObject();
        ois.close();
        fis.close();

        Integer second = (Integer) queue.poll();
        System.out.println("Second: " + second);
    }
}

---------- END SOURCE ----------