src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java

@@ -4392,11 +4392,11 @@
          int scale = U.arrayIndexScale(aklass);
          ASHIFT = 31 - Integer.numberOfLeadingZeros(scale);
          if ((scale & (scale - 1)) != 0)
              throw new Error("array index scale not a power of two");
  
-         Class<?> dep = LockSupport.class; // ensure loaded
+         U.ensureClassInitialized(LockSupport.class); // ensure loaded and initialized
          // allow access to non-public methods
          JLA = SharedSecrets.getJavaLangAccess();
          SharedSecrets.setJavaUtilConcurrentFJPAccess(
              new JavaUtilConcurrentFJPAccess() {
                  @Override