test/hotspot/jtreg/serviceability/jvmti/vthread/GetThreadStateMountedTest/GetThreadStateMountedTest.java

@@ -249,17 +249,18 @@
          if (errCount > 0) {
              throw new RuntimeException("Test failed, " + errCount + " errors");
          }
      }
  
+     private static native void runFromNative(Runnable runnable);
+ 
      private static Thread createPinnedVThread(Runnable runnable) {
-         final Object syncObj = new Object();
-         return Thread.ofVirtual().unstarted(() -> {
-             synchronized (syncObj) {
-                 runnable.run();
-             }
-         });
+         return Thread.ofVirtual().unstarted(() -> runFromNative(runnable));
+     }
+ 
+     private static void runUpcall(Runnable runnable) {
+         runnable.run();
      }
  
      // Native implementation of suspendWaiting.
      // Returns false if the method is not able to reach the desired state in several tries.
      private static native boolean trySuspendInWaitingState(Thread vthread);