src/java.base/share/classes/jdk/internal/misc/JavaLangAccess.java

@@ -122,14 +122,9 @@
      * Invokes the finalize method of the given object.
      */
     void invokeFinalize(Object o) throws Throwable;
 
     /**
-     * Invokes Long.formatUnsignedLong(long val, int shift, char[] buf, int offset, int len)
+     * Invokes Long.fastUUID
      */
-    void formatUnsignedLong(long val, int shift, char[] buf, int offset, int len);
-
-    /**
-     * Invokes Integer.formatUnsignedInt(long val, int shift, char[] buf, int offset, int len)
-     */
-    void formatUnsignedInt(int val, int shift, char[] buf, int offset, int len);
+    String fastUUID(long lsb, long msb);
 }