--- jsr166/src/test/tck/JSR166TestCase.java	2016/06/22 14:40:36	1.197
+++ jsr166/src/test/tck/JSR166TestCase.java	2016/08/28 18:10:37	1.201
@@ -13,6 +13,7 @@
  * @build *
  * @run junit/othervm/timeout=1000 -Djsr166.testImplementationDetails=true JSR166TestCase
  * @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=0 -Djsr166.testImplementationDetails=true JSR166TestCase
+ * @run junit/othervm/timeout=1000 -Djava.util.concurrent.ForkJoinPool.common.parallelism=1 -Djava.util.secureRandomSeed=true JSR166TestCase
  */
 
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
@@ -40,6 +41,7 @@ import java.security.ProtectionDomain;
 import java.security.SecurityPermission;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.Date;
 import java.util.Enumeration;
 import java.util.Iterator;
@@ -61,6 +63,7 @@ import java.util.concurrent.RejectedExec
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.SynchronousQueue;
 import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -1234,7 +1237,7 @@ public class JSR166TestCase extends Test
      * Sleeps until the given time has elapsed.
      * Throws AssertionFailedError if interrupted.
      */
-    void sleep(long millis) {
+    static void sleep(long millis) {
         try {
             delay(millis);
         } catch (InterruptedException fail) {
@@ -1250,7 +1253,7 @@ public class JSR166TestCase extends Test
      * thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
      */
     void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
-        long startTime = System.nanoTime();
+        long startTime = 0L;
         for (;;) {
             Thread.State s = thread.getState();
             if (s == Thread.State.BLOCKED ||
@@ -1259,6 +1262,8 @@ public class JSR166TestCase extends Test
                 return;
             else if (s == Thread.State.TERMINATED)
                 fail("Unexpected thread termination");
+            else if (startTime == 0L)
+                startTime = System.nanoTime();
             else if (millisElapsedSince(startTime) > timeoutMillis) {
                 threadAssertTrue(thread.isAlive());
                 return;
@@ -1872,4 +1877,7 @@ public class JSR166TestCase extends Test
                                1000L, MILLISECONDS,
                                new SynchronousQueue<Runnable>());
 
+    static <T> void shuffle(T[] array) {
+        Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
+    }
 }