code: protected <R> R exit(final String fqcn, final R result) {
          logIfEnabled(fqcn, Level.TRACE, EXIT_MARKER, exitMsg(null, result), null);
          return result;
      }
docs: Logs exiting from a method with the result and location information.
  
  @param fqcn The fully qualified class name of the <b>caller</b>.
  @param <R> The type of the parameter and object being returned.
  @param result The result being returned from the method call.
  @return the return value passed to this method.