src/java.base/share/classes/sun/reflect/LangReflectAccess.java

*** 107,112 ****
--- 107,122 ----
      /** Makes a "child" copy of a Field */
      public Field       copyField(Field arg);
  
      /** Makes a "child" copy of a Constructor */
      public <T> Constructor<T> copyConstructor(Constructor<T> arg);
+ 
+     //
+     // Comparing / Hashing Method parameter types
+     //
+ 
+     /** Compares parameter types of two Methods */
+     public boolean methodParameterTypesEquals(Method method1, Method method2);
+ 
+     /** Returns hashCode for parameter types of a Method */
+     public int methodParameterTypesHashCode(Method method);
  }