trivial AccessController implementation

classpath/java/security/AccessController.java

@@ -0,0 +1,15 @@
+package java.security;
+
+/**
+ * No real access control is implemented here.
+ * 
+ * @author zsombor
+ *
+ */
+public class AccessController {
+
+  public static Object doPrivileged (PrivilegedAction action) {
+    return action.run();
+  }
+
+}