7041252: Use j.u.Objects.equals in security classes

Reviewed-by: weijun

src/share/classes/sun/security/tools/KeyTool.java

@@ -4193,15 +4193,11 @@ class Pair<A, B> {
         return "Pair[" + fst + "," + snd + "]";
     }
 
-    private static boolean equals(Object x, Object y) {
-        return (x == null && y == null) || (x != null && x.equals(y));
-    }
-
     public boolean equals(Object other) {
         return
             other instanceof Pair &&
-            equals(fst, ((Pair)other).fst) &&
-            equals(snd, ((Pair)other).snd);
+            Objects.equals(fst, ((Pair)other).fst) &&
+            Objects.equals(snd, ((Pair)other).snd);
     }
 
     public int hashCode() {

src/share/classes/sun/security/x509/DistributionPoint.java

 /*
- * Copyright (c) 2002, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -318,13 +318,6 @@ public class DistributionPoint {
         out.write(DerValue.tag_Sequence, tagged);
     }
 
-    /**
-     * Utility function for a.equals(b) where both a and b may be null.
-     */
-    private static boolean equals(Object a, Object b) {
-        return (a == null) ? (b == null) : a.equals(b);
-    }
-
     /**
      * Compare an object to this DistributionPoint for equality.
      *
@@ -340,9 +333,9 @@ public class DistributionPoint {
         }
         DistributionPoint other = (DistributionPoint)obj;
 
-        boolean equal = equals(this.fullName, other.fullName)
-                     && equals(this.relativeName, other.relativeName)
-                     && equals(this.crlIssuer, other.crlIssuer)
+        boolean equal = Objects.equals(this.fullName, other.fullName)
+                     && Objects.equals(this.relativeName, other.relativeName)
+                     && Objects.equals(this.crlIssuer, other.crlIssuer)
                      && Arrays.equals(this.reasonFlags, other.reasonFlags);
         return equal;
     }

src/share/classes/sun/security/x509/DistributionPointName.java

 /*
- * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -201,8 +201,8 @@ public class DistributionPointName {
         }
         DistributionPointName other = (DistributionPointName)obj;
 
-        return equals(this.fullName, other.fullName) &&
-               equals(this.relativeName, other.relativeName);
+        return Objects.equals(this.fullName, other.fullName) &&
+               Objects.equals(this.relativeName, other.relativeName);
     }
 
     /**
@@ -239,11 +239,4 @@ public class DistributionPointName {
 
         return sb.toString();
     }
-
-    /*
-     * Utility function for a.equals(b) where both a and b may be null.
-     */
-    private static boolean equals(Object a, Object b) {
-        return (a == null) ? (b == null) : a.equals(b);
-    }
 }