src/java.base/share/classes/java/lang/reflect/Method.java

*** 35,44 ****
--- 35,45 ----
  import sun.reflect.annotation.AnnotationType;
  import sun.reflect.annotation.AnnotationParser;
  import java.lang.annotation.Annotation;
  import java.lang.annotation.AnnotationFormatError;
  import java.nio.ByteBuffer;
+ import java.util.Arrays;
  
  /**
   * A {@code Method} provides information about, and access to, a single method
   * on a class or interface.  The reflected method may be a class method
   * or an instance method (including an abstract method).
*** 176,185 ****
--- 177,207 ----
      byte[] getAnnotationBytes() {
          return annotations;
      }
  
      /**
+      * Used by java.lang.MethodTable to optimize comparing/locating
+      * method signatures.
+      */
+     boolean parameterTypesEquals(Method other) {
+         int len = parameterTypes.length;
+         if (len != other.parameterTypes.length) {
+             return false;
+         }
+         for (int i = 0; i < len; i++) {
+             if (parameterTypes[i] != other.parameterTypes[i]) {
+                 return false;
+             }
+         }
+         return true;
+     }
+ 
+     int parameterTypesHashCode() {
+         return Arrays.hashCode(parameterTypes);
+     }
+ 
+     /**
       * {@inheritDoc}
       */
      @Override
      public Class<?> getDeclaringClass() {
          return clazz;