test/java/lang/ref/EarlyTimeout.java

@@ -61,13 +61,13 @@
         EarlyTimeout[] threads = new EarlyTimeout[THREADS_COUNT];
         for (int i = 0; i < THREADS_COUNT; ++i) {
             threads[i] = new EarlyTimeout();
             threads[i].start();
         }
-        startedSignal.await();
         referent = null;
         System.gc();
+        startedSignal.await();
         for (EarlyTimeout thread : threads) {
             thread.join();
         }
         if (weakReference.get() != null) {
             throw new RuntimeException("weakReference was not cleared");

@@ -80,11 +80,14 @@
             }
             if (thread.reference != null && thread.reference == weakReference) {
                 nonNullRefCount++;
             }
         }
-        if (nonNullRefCount != 1) {
+        if (nonNullRefCount == 0) {
+            System.err.println("no references were removed from queue");
+        }
+        if (nonNullRefCount > 1) {
             throw new RuntimeException("more than one references were removed from queue");
         }
     }
 
     public void run() {