src/java.base/windows/classes/sun/nio/ch/NativeThread.java

@@ -43,18 +43,10 @@
              // no support for signalling threads on Windows
              return 0;
          }
      }
  
-     /**
-      * Returns the id of the current native thread if the platform can signal
-      * native threads, 0 if the platform can not signal native threads.
-      */
-     static long currentNativeThread() {
-         return 0;
-     }
- 
      /**
       * Signals the given native thread.
       *
       * @throws IllegalArgumentException if tid is not a token to a native thread
       */