From 680fceb9ba192a98f48cc672df04b5bf6b95d8b0 Mon Sep 17 00:00:00 2001
From: Ivan Gerasimov <igerasim@openjdk.org>
Date: Fri, 27 Sep 2019 17:50:09 -0700
Subject: [PATCH] 8230415: Avoid redundant permission checking in
 FilePermissionCollection and SocketPermissionCollection

Reviewed-by: mullan
---
 src/java.base/share/classes/java/io/FilePermission.java    | 2 +-
 src/java.base/share/classes/java/net/SocketPermission.java | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/java.base/share/classes/java/io/FilePermission.java b/src/java.base/share/classes/java/io/FilePermission.java
index e2227131808..614bfe1b855 100644
--- a/src/java.base/share/classes/java/io/FilePermission.java
+++ b/src/java.base/share/classes/java/io/FilePermission.java
@@ -1196,7 +1196,7 @@ public boolean implies(Permission permission) {
                 if ((effective & desired) == desired) {
                     return true;
                 }
-                needed = (desired ^ effective);
+                needed = (desired & ~effective);
             }
         }
         return false;
diff --git a/src/java.base/share/classes/java/net/SocketPermission.java b/src/java.base/share/classes/java/net/SocketPermission.java
index 3abf17604e0..2452fbbbfe4 100644
--- a/src/java.base/share/classes/java/net/SocketPermission.java
+++ b/src/java.base/share/classes/java/net/SocketPermission.java
@@ -1433,7 +1433,7 @@ public boolean implies(Permission permission)
                 if ((effective & desired) == desired) {
                     return true;
                 }
-                needed = (desired ^ effective);
+                needed = (desired & ~effective);
             }
         }
         return false;