src/java.base/share/classes/java/lang/System.java

@@ -1909,14 +1909,11 @@
                 return new Thread(target, acc);
             }
             public void invokeFinalize(Object o) throws Throwable {
                 o.finalize();
             }
-            public void formatUnsignedLong(long val, int shift, char[] buf, int offset, int len) {
-                Long.formatUnsignedLong(val, shift, buf, offset, len);
-            }
-            public void formatUnsignedInt(int val, int shift, char[] buf, int offset, int len) {
-                Integer.formatUnsignedInt(val, shift, buf, offset, len);
+            public String fastUUID(long lsb, long msb) {
+                return Long.fastUUID(lsb, msb);
             }
         });
     }
 }