diff --git a/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java b/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java
index 3f40797..1b3e2e6 100644
--- a/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java
+++ b/framework/src/main/java/org/apache/felix/framework/ExtensionManager.java
@@ -309,16 +309,8 @@
         Object sm = System.getSecurityManager();
         if (sm != null)
         {
-            try
-            {
                 ((SecurityManager) sm).checkPermission(
                     new AdminPermission(bundle, AdminPermission.EXTENSIONLIFECYCLE));
-            }
-            catch (SecurityException ex)
-            {
-                // TODO: SECURITY - we need to throw this exception because of the 4.2.0 ct
-                throw new AccessControlException(ex.getMessage());
-            }
         }
 
         if (!((BundleProtectionDomain) bundle.getProtectionDomain()).impliesDirect(new AllPermission()))
@@ -886,4 +878,4 @@
             // Nothing needed here.
         }
     }
-}
\ No newline at end of file
+}
diff --git a/framework/src/main/java/org/apache/felix/framework/Felix.java b/framework/src/main/java/org/apache/felix/framework/Felix.java
index f836663..8dd32a2 100644
--- a/framework/src/main/java/org/apache/felix/framework/Felix.java
+++ b/framework/src/main/java/org/apache/felix/framework/Felix.java
@@ -581,24 +581,7 @@
                     security = security.trim();
                     if (Constants.FRAMEWORK_SECURITY_OSGI.equalsIgnoreCase(security) || (security.length() == 0))
                     {
-                        // TODO: SECURITY - we only need our own security manager to convert the exceptions
-                        //       because the 4.2.0 ct does expect them like this in one case.
-                        System.setSecurityManager(m_securityManager = new SecurityManager()
-                        {
-                            public void checkPermission(Permission perm)
-                            {
-                                try
-                                {
-                                    super.checkPermission(perm);
-                                }
-                                catch (AccessControlException ex)
-                                {
-                                    SecurityException se = new SecurityException(ex.getMessage());
-                                    se.initCause(ex);
-                                    throw se;
-                                }
-                            }
-                        });
+                        System.setSecurityManager(m_securityManager = new SecurityManager());
                     }
                     else
                     {
@@ -5023,4 +5006,4 @@
     {
         return m_urlHandlersActivator.getContentHandlerService(mimeType);
     }
-}
\ No newline at end of file
+}