--- jsr166/src/test/tck/JSR166TestCase.java	2016/08/06 16:24:05	1.199
+++ jsr166/src/test/tck/JSR166TestCase.java	2016/09/15 00:32:45	1.202
@@ -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;
@@ -1235,7 +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) {
@@ -1754,7 +1756,7 @@ 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() {
@@ -1875,4 +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());
+    }
 }