test/hotspot/jtreg/runtime/Safepoint/TestAbortVMOnSafepointTimeout.java

*** 25,35 ****
  import jdk.test.lib.process.*;
  
  /*
   * @test TestAbortVMOnSafepointTimeout
   * @summary Check if VM can kill thread which doesn't reach safepoint.
!  * @bug 8219584
   * @requires vm.compiler2.enabled
   * @library /test/lib
   * @modules java.base/jdk.internal.misc
   *          java.management
   */
--- 25,35 ----
  import jdk.test.lib.process.*;
  
  /*
   * @test TestAbortVMOnSafepointTimeout
   * @summary Check if VM can kill thread which doesn't reach safepoint.
!  * @bug 8219584 8227528
   * @requires vm.compiler2.enabled
   * @library /test/lib
   * @modules java.base/jdk.internal.misc
   *          java.management
   */
*** 56,67 ****
--- 56,75 ----
          }
          return sum;
      }
  
      public static void testWith(int sfpt_interval, int timeout_delay) throws Exception {
+         // -XX:-UseCountedLoopSafepoints - is used to prevent the loop
+         // in test_loop() to poll for safepoints.
+         // -XX:LoopStripMiningIter=0 and -XX:LoopUnrollLimit=0 - are
+         // used to prevent optimizations over the loop in test_loop()
+         // since we actually want it to provoke a safepoint timeout.
+         // -XX:-UseBiasedLocking - is used to prevent biased locking
+         // handshakes from changing the timing of this test.
          ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
                  "-XX:+UnlockDiagnosticVMOptions",
+                 "-XX:-UseBiasedLocking",
                  "-XX:+SafepointTimeout",
                  "-XX:+SafepointALot",
                  "-XX:+AbortVMOnSafepointTimeout",
                  "-XX:SafepointTimeoutDelay=" + timeout_delay,
                  "-XX:GuaranteedSafepointInterval=" + sfpt_interval,