--- jsr166/src/test/tck/RecursiveTaskTest.java	2014/12/31 19:05:43	1.31
+++ jsr166/src/test/tck/RecursiveTaskTest.java	2017/03/18 18:20:00	1.35
@@ -20,7 +20,7 @@ import junit.framework.TestSuite;
 public class RecursiveTaskTest extends JSR166TestCase {
 
     public static void main(String[] args) {
-        junit.textui.TestRunner.run(suite());
+        main(suite(), args);
     }
     public static Test suite() {
         return new TestSuite(RecursiveTaskTest.class);
@@ -41,15 +41,13 @@ public class RecursiveTaskTest extends J
     }
 
     private <T> T testInvokeOnPool(ForkJoinPool pool, RecursiveTask<T> a) {
-        try {
+        try (PoolCleaner cleaner = cleaner(pool)) {
             checkNotDone(a);
 
             T result = pool.invoke(a);
 
             checkCompletedNormally(a, result);
             return result;
-        } finally {
-            joinPool(pool);
         }
     }
 
@@ -185,10 +183,10 @@ public class RecursiveTaskTest extends J
         public FJException() { super(); }
     }
 
-    // An invalid return value for Fib
+    /** An invalid return value for Fib. */
     static final Integer NoResult = Integer.valueOf(-17);
 
-    // A simple recursive task for testing
+    /** A simple recursive task for testing. */
     final class FibTask extends CheckedRecursiveTask<Integer> {
         final int number;
         FibTask(int n) { number = n; }
@@ -206,7 +204,7 @@ public class RecursiveTaskTest extends J
         }
     }
 
-    // A recursive action failing in base case
+    /** A recursive action failing in base case. */
     final class FailingFibTask extends RecursiveTask<Integer> {
         final int number;
         int result;
@@ -330,6 +328,8 @@ public class RecursiveTaskTest extends J
                 FibTask f = new FibTask(8);
                 assertSame(f, f.fork());
                 helpQuiesce();
+                while (!f.isDone()) // wait out race
+                    ;
                 assertEquals(0, getQueuedTaskCount());
                 checkCompletedNormally(f, 21);
                 return NoResult;