diff -r 274e3994aa23 -r 379f48d34516 jdk/src/share/classes/java/lang/Class.java
--- a/jdk/src/share/classes/java/lang/Class.java	Thu Jan 31 17:04:47 2013 -0800
+++ b/jdk/src/share/classes/java/lang/Class.java	Sun Feb 03 23:25:38 2013 +0100
@@ -61,7 +61,9 @@
 import sun.reflect.generics.scope.ClassScope;
 import sun.security.util.SecurityConstants;
 import java.lang.annotation.Annotation;
+import java.lang.reflect.Proxy;
 import sun.reflect.annotation.*;
+import sun.reflect.misc.ReflectUtil;
 
 /**
  * Instances of the class {@code Class} represent classes and
@@ -248,11 +250,11 @@
                                    ClassLoader loader)
         throws ClassNotFoundException
     {
-        if (loader == null) {
+        if (sun.misc.VM.isSystemDomainLoader(loader)) {
             SecurityManager sm = System.getSecurityManager();
             if (sm != null) {
                 ClassLoader ccl = ClassLoader.getCallerClassLoader();
-                if (ccl != null) {
+                if (!sun.misc.VM.isSystemDomainLoader(ccl)) {
                     sm.checkPermission(
                         SecurityConstants.GET_CLASSLOADER_PERMISSION);
                 }
@@ -317,7 +319,7 @@
         throws InstantiationException, IllegalAccessException
     {
         if (System.getSecurityManager() != null) {
-            checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+            checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), false);
         }
         return newInstance0();
     }
@@ -1297,7 +1299,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), false);
 
         // Privileged so this implementation can look at DECLARED classes,
         // something the caller might not have privilege to do.  The code here
@@ -1372,7 +1374,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), true);
         return copyFields(privateGetPublicFields(null));
     }
 
@@ -1423,7 +1425,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), true);
         return copyMethods(privateGetPublicMethods());
     }
 
@@ -1472,7 +1474,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), true);
         return copyConstructors(privateGetDeclaredConstructors(true));
     }
 
@@ -1531,7 +1533,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), true);
         Field field = getField0(name);
         if (field == null) {
             throw new NoSuchFieldException(name);
@@ -1616,7 +1618,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), true);
         Method method = getMethod0(name, parameterTypes);
         if (method == null) {
             throw new NoSuchMethodException(getName() + "." + name + argumentTypesToString(parameterTypes));
@@ -1670,7 +1672,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader(), true);
         return getConstructor0(parameterTypes, Member.PUBLIC);
     }
 
@@ -1712,7 +1714,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), false);
         return getDeclaredClasses0();
     }
 
@@ -1756,7 +1758,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), true);
         return copyFields(privateGetDeclaredFields(false));
     }
 
@@ -1804,7 +1806,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), true);
         return copyMethods(privateGetDeclaredMethods(false));
     }
 
@@ -1849,7 +1851,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), true);
         return copyConstructors(privateGetDeclaredConstructors(false));
     }
 
@@ -1893,7 +1895,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), true);
         Field field = searchFields(privateGetDeclaredFields(false), name);
         if (field == null) {
             throw new NoSuchFieldException(name);
@@ -1948,7 +1950,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), true);
         Method method = searchMethods(privateGetDeclaredMethods(false), name, parameterTypes);
         if (method == null) {
             throw new NoSuchMethodException(getName() + "." + name + argumentTypesToString(parameterTypes));
@@ -1998,7 +2000,7 @@
         // be very careful not to change the stack depth of this
         // checkMemberAccess call for security reasons
         // see java.lang.SecurityManager.checkMemberAccess
-        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
+        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader(), true);
         return getConstructor0(parameterTypes, Member.DECLARED);
     }
 
@@ -2168,18 +2170,26 @@
      * <p> Default policy: allow all clients access with normal Java access
      * control.
      */
-    private void checkMemberAccess(int which, ClassLoader ccl) {
+    private void checkMemberAccess(int which, ClassLoader ccl, boolean checkProxyInterfaces) {
         SecurityManager s = System.getSecurityManager();
         if (s != null) {
             s.checkMemberAccess(this, which);
             ClassLoader cl = getClassLoader0();
-            if (sun.reflect.misc.ReflectUtil.needsPackageAccessCheck(ccl, cl)) {
+            if (ReflectUtil.needsPackageAccessCheck(ccl, cl)) {
                 String name = this.getName();
                 int i = name.lastIndexOf('.');
                 if (i != -1) {
-                    s.checkPackageAccess(name.substring(0, i));
+                    // skip the package access check on a proxy class in default proxy package
+                    String pkg = name.substring(0, i);
+                    if (!Proxy.isProxyClass(this) || !pkg.equals(ReflectUtil.PROXY_PACKAGE)) {
+                        s.checkPackageAccess(pkg);
+                    }
                 }
             }
+            // check package access on the proxy interfaces
+            if (checkProxyInterfaces && Proxy.isProxyClass(this)) {
+                ReflectUtil.checkProxyPackageAccess(ccl, this.getInterfaces());
+            }
         }
     }