code: static String getSystemProperty(final String name, final String defaultValue)
     {
        PrivilegedAction<String> action = new PrivilegedAction<String>()
        {
           public String run()
           {
              return System.getProperty(name, defaultValue);
           }
        };
        return AccessController.doPrivileged(action);
     }
docs: Return the current value of the specified system property
  
  @param name
  @param defaultValue
  @return