code: public static final void event(TraceComponent tc, String msg, Object objs) {
      event(null, tc, msg, objs);
    }
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 tc the non-null <code>TraceComponent</code> the event is associated
  with.
  @param msg text to include in the event. No translation, conversion or
  formatting is performed.
  @param objs an <code>Object</code> or array of <code>Objects</code>.
  toString() is called on each object and the results are appended to
  the message.