1 files changed, 11 insertions, 3 deletions

diff --git a/jsr166-tests/src/test/java/jsr166/AbstractQueuedSynchronizerTest.java b/jsr166-tests/src/test/java/jsr166/AbstractQueuedSynchronizerTest.java
index b3c4110297..d102fc63c8 100644
--- a/jsr166-tests/src/test/java/jsr166/AbstractQueuedSynchronizerTest.java
+++ b/jsr166-tests/src/test/java/jsr166/AbstractQueuedSynchronizerTest.java
@@ -29,7 +29,7 @@ public class AbstractQueuedSynchronizerTest extends JSR166TestCase {
     //     main(suite(), args);
     // }
     // public static Test suite() {
-    //     return new TestSuite(...);
+    //     return new TestSuite(AbstractQueuedSynchronizerTest.class);
     // }
 
     /**
@@ -244,25 +244,33 @@ public class AbstractQueuedSynchronizerTest extends JSR166TestCase {
      */
     void assertAwaitTimesOut(ConditionObject c, AwaitMethod awaitMethod) {
         long timeoutMillis = timeoutMillis();
-        long startTime = System.nanoTime();
+        long startTime;
         try {
             switch (awaitMethod) {
             case awaitTimed:
+                startTime = System.nanoTime();
                 assertFalse(c.await(timeoutMillis, MILLISECONDS));
+                assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
                 break;
             case awaitNanos:
+                startTime = System.nanoTime();
                 long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis);
                 long nanosRemaining = c.awaitNanos(nanosTimeout);
                 assertTrue(nanosRemaining <= 0);
+                assertTrue(nanosRemaining > -MILLISECONDS.toNanos(LONG_DELAY_MS));
+                assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
                 break;
             case awaitUntil:
+                // We shouldn't assume that nanoTime and currentTimeMillis
+                // use the same time source, so don't use nanoTime here.
+                java.util.Date delayedDate = delayedDate(timeoutMillis());
                 assertFalse(c.awaitUntil(delayedDate(timeoutMillis)));
+                assertTrue(new java.util.Date().getTime() >= delayedDate.getTime());
                 break;
             default:
                 throw new UnsupportedOperationException();
             }
         } catch (InterruptedException ie) { threadUnexpectedException(ie); }
-        assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
     }
 
     /**