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test/jdk/java/lang/Thread/virtual/stress/PinALot.java

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@@ -1,7 +1,7 @@
  /*
-  * Copyright (c) 2020, 2023, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2020, 2024, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

@@ -44,33 +44,33 @@
  import jdk.test.lib.thread.VThreadPinner;
  
  public class PinALot {
  
      public static void main(String[] args) throws Exception {
-         int iterations = 1_000_000;
+         int iterations;
          if (args.length > 0) {
              iterations = Integer.parseInt(args[0]);
+         } else {
+             iterations = 1_000_000;
          }
-         final int ITERATIONS = iterations;
  
          AtomicInteger count = new AtomicInteger();
- 
          Thread thread = Thread.ofVirtual().start(() -> {
              VThreadPinner.runPinned(() -> {
-                 while (count.incrementAndGet() < ITERATIONS) {
+                 while (count.incrementAndGet() < iterations) {
                      LockSupport.parkNanos(1);
                  }
              });
          });
  
          boolean terminated;
          do {
              terminated = thread.join(Duration.ofSeconds(1));
-             System.out.println(Instant.now() + " => " + count.get());
+             System.out.println(Instant.now() + " => " + count.get() + " of " + iterations);
          } while (!terminated);
  
          int countValue = count.get();
-         if (countValue != ITERATIONS) {
-             throw new RuntimeException("count = " + countValue);
+         if (countValue != iterations) {
+             throw new RuntimeException("Thread terminated, count=" + countValue);
          }
      }
  }
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