gistfile1.java

146     /**
147      * Eventually add the security subject that has created this event.
148      */
149     private void prepare(final Event event)
150     {
151         Subject subject = Subject.getSubject(AccessController.getContext());
152         if (subject != null)
153         {
154             try
155             {
156                 Field f = Event.class.getDeclaredField("properties");
157                 f.setAccessible(true);
158                 Map props = (Map) f.get(event);
159                 props.put("event.subject", subject);
160             }
161             catch (Throwable t)
162             {
163                 // Ignore
164             }
165         }
166     }