test/jdk/sun/management/HotspotRuntimeMBean/GetSafepointSyncTime.java

*** 42,52 ****
          (HotspotRuntimeMBean)ManagementFactoryHelper.getHotspotRuntimeMBean();
  
      private static final long NUM_THREAD_DUMPS = 300;
  
      // Careful with these values.
!     private static final long MIN_VALUE_FOR_PASS = 1;
      private static final long MAX_VALUE_FOR_PASS = Long.MAX_VALUE;
  
      public static void main(String args[]) throws Exception {
          long count = mbean.getSafepointCount();
          long value = mbean.getSafepointSyncTime();
--- 42,52 ----
          (HotspotRuntimeMBean)ManagementFactoryHelper.getHotspotRuntimeMBean();
  
      private static final long NUM_THREAD_DUMPS = 300;
  
      // Careful with these values.
!     private static final long MIN_VALUE_FOR_PASS = 0;
      private static final long MAX_VALUE_FOR_PASS = Long.MAX_VALUE;
  
      public static void main(String args[]) throws Exception {
          long count = mbean.getSafepointCount();
          long value = mbean.getSafepointSyncTime();
*** 79,89 ****
          long value2 = mbean.getSafepointSyncTime();
  
          System.out.format("Safepoint count=%d (diff=%d), sync time=%d ms (diff=%d)%n",
                            count2, count2-count1, value2, value2-value1);
  
!         if (value2 <= value1) {
              throw new RuntimeException("Safepoint sync time " +
                                         "did not increase " +
                                         "(value1 = " + value1 + "; " +
                                         "value2 = " + value2 + ")");
          }
--- 79,89 ----
          long value2 = mbean.getSafepointSyncTime();
  
          System.out.format("Safepoint count=%d (diff=%d), sync time=%d ms (diff=%d)%n",
                            count2, count2-count1, value2, value2-value1);
  
!         if (value2 < value1) {
              throw new RuntimeException("Safepoint sync time " +
                                         "did not increase " +
                                         "(value1 = " + value1 + "; " +
                                         "value2 = " + value2 + ")");
          }