src/java.base/share/classes/java/io/FilePermission.java

rev 56150 : [mq]: 8230415-Avoid-redundant-permission-checking-in-FilePermissionCollection-and-SocketPermissionCollection

@@ -1194,11 +1194,11 @@
             if (((needed & fp.getMask()) != 0) && fp.impliesIgnoreMask(fperm)) {
                 effective |= fp.getMask();
                 if ((effective & desired) == desired) {
                     return true;
                 }
-                needed = (desired ^ effective);
+                needed = (desired & ~effective);
             }
         }
         return false;
     }