--- old/src/share/classes/java/lang/Class.java	Wed Aug 22 13:19:23 2012
+++ new/src/share/classes/java/lang/Class.java	Wed Aug 22 13:19:23 2012
@@ -605,7 +605,7 @@
         SecurityManager sm = System.getSecurityManager();
         if (sm != null) {
             ClassLoader ccl = ClassLoader.getCallerClassLoader();
-            if (ccl != null && ccl != cl && !cl.isAncestor(ccl)) {
+            if (ClassLoader.needsClassLoaderPermissionCheck(ccl, cl)) {
                 sm.checkPermission(SecurityConstants.GET_CLASSLOADER_PERMISSION);
             }
         }
@@ -2170,8 +2170,7 @@
         if (s != null) {
             s.checkMemberAccess(this, which);
             ClassLoader cl = getClassLoader0();
-            if ((ccl != null) && (ccl != cl) &&
-                  ((cl == null) || !cl.isAncestor(ccl))) {
+            if (sun.reflect.misc.ReflectUtil.needsPackageAccessCheck(ccl, cl)) {
                 String name = this.getName();
                 int i = name.lastIndexOf('.');
                 if (i != -1) {