--- jsr166/src/test/tck/JSR166TestCase.java	2016/07/27 17:16:23	1.198
+++ jsr166/src/test/tck/JSR166TestCase.java	2016/09/15 03:46:19	1.203
@@ -41,6 +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;
@@ -62,6 +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;
@@ -1003,14 +1005,17 @@ public class JSR166TestCase extends Test
         ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
         System.err.println("------ stacktrace dump start ------");
         for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
-            String name = info.getThreadName();
+            final String name = info.getThreadName();
+            String lockName;
             if ("Signal Dispatcher".equals(name))
                 continue;
             if ("Reference Handler".equals(name)
-                && info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
+                && (lockName = info.getLockName()) != null
+                && lockName.startsWith("java.lang.ref.Reference$Lock"))
                 continue;
             if ("Finalizer".equals(name)
-                && info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
+                && (lockName = info.getLockName()) != null
+                && lockName.startsWith("java.lang.ref.ReferenceQueue$Lock"))
                 continue;
             if ("checkForWedgedTest".equals(name))
                 continue;
@@ -1235,7 +1240,7 @@ 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) {
@@ -1251,7 +1256,7 @@ 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 ||
@@ -1260,6 +1265,8 @@ 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;
@@ -1752,7 +1759,7 @@ public class JSR166TestCase extends Test
      * A CyclicBarrier that uses timed await and fails with
      * AssertionFailedErrors instead of throwing checked exceptions.
      */
-    public class CheckedBarrier extends CyclicBarrier {
+    public static class CheckedBarrier extends CyclicBarrier {
         public CheckedBarrier(int parties) { super(parties); }
 
         public int await() {
@@ -1873,4 +1880,7 @@ public class JSR166TestCase extends Test
                                1000L, MILLISECONDS,
                                new SynchronousQueue<Runnable>());
 
+    static <T> void shuffle(T[] array) {
+        Collections.shuffle(Arrays.asList(array), ThreadLocalRandom.current());
+    }
 }