code: public static final void event(Object o, TraceComponent tc, String msg) {
      Tr.event(tc, getFullClassName(tc)+" "+getMEName(o) + " " + msg);
    }
docs: If event level diagnostic trace is enabled for the specified
  <code>TraceComponent</code>, forward an Event event to all registered
  TraceEventListeners. Each registered listener will determine whether to
  log or ignore the event.
  <p>
  @param o handle of the object making the trace call
  @param tc the non-null <code>TraceComponent</code> the event is associated
  with.
  @param msg text to include in the event. No translation or conversion is
  performed.