--- jsr166/src/test/tck/AtomicStampedReferenceTest.java	2003/09/20 18:20:07	1.3
+++ jsr166/src/test/tck/AtomicStampedReferenceTest.java	2003/09/25 11:02:41	1.4
@@ -17,7 +17,7 @@ public class AtomicStampedReferenceTest
     }
     
     /**
-     *
+     * constructeor initializes to given reference and stamp
      */
     public void testConstructor(){
         AtomicStampedReference ai = new AtomicStampedReference(one, 0);
@@ -30,7 +30,7 @@ public class AtomicStampedReferenceTest
     }
 
     /**
-     *
+     *  get returns the last values of reference and stamp set
      */
     public void testGetSet(){
         int[] mark = new int[1];
@@ -52,7 +52,7 @@ public class AtomicStampedReferenceTest
     }
 
     /**
-     *
+     *  attemptStamp succeeds in single thread
      */
     public void testAttemptStamp(){
         int[] mark = new int[1];
@@ -65,7 +65,8 @@ public class AtomicStampedReferenceTest
     }
 
     /**
-     *
+     * compareAndSet succeeds in changing values if equal to expected reference
+     * and stamp else fails
      */
     public void testCompareAndSet(){
         int[] mark = new int[1];
@@ -88,7 +89,54 @@ public class AtomicStampedReferenceTest
     }
 
     /**
-     *
+     * compareAndSet in one thread enables another waiting for reference value
+     * to succeed
+     */
+    public void testCompareAndSetInMultipleThreads() {
+        final AtomicStampedReference ai = new AtomicStampedReference(one, 0);
+        Thread t = new Thread(new Runnable() {
+                public void run() {
+                    while(!ai.compareAndSet(two, three, 0, 0)) Thread.yield();
+                }});
+        try {
+            t.start();
+            assertTrue(ai.compareAndSet(one, two, 0, 0));
+            t.join(LONG_DELAY_MS);
+            assertFalse(t.isAlive());
+            assertEquals(ai.getReference(), three);
+            assertEquals(ai.getStamp(), 0);
+        }
+        catch(Exception e) {
+            unexpectedException();
+        }
+    }
+
+    /**
+     * compareAndSet in one thread enables another waiting for stamp value
+     * to succeed
+     */
+    public void testCompareAndSetInMultipleThreads2() {
+        final AtomicStampedReference ai = new AtomicStampedReference(one, 0);
+        Thread t = new Thread(new Runnable() {
+                public void run() {
+                    while(!ai.compareAndSet(one, one, 1, 2)) Thread.yield();
+                }});
+        try {
+            t.start();
+            assertTrue(ai.compareAndSet(one, one, 0, 1));
+            t.join(LONG_DELAY_MS);
+            assertFalse(t.isAlive());
+            assertEquals(ai.getReference(), one);
+            assertEquals(ai.getStamp(), 2);
+        }
+        catch(Exception e) {
+            unexpectedException();
+        }
+    }
+
+    /**
+     * repeated weakCompareAndSet succeeds in changing values when equal
+     * to expected 
      */
     public void testWeakCompareAndSet(){
         int[] mark = new int[1];