anchor.diff:              "** Stacktrace:~n ~.0p~n",
               [Level, Reason,
                Msg,
  -             gc_mod(State),
  -             gc_hand(State),
  +             gc_mod(GCState),
  +             gc_hand(GCState),
                self(), catch pid_groups:group_and_name_of(self()),
                erlang:get(test_server_loc),
  -             State,
  +             {UState, GCState},
                Stacktrace]),
  -    State.
  -
  --spec on_post_op(comm:message(), gc_state()) -> gc_state().
  -on_post_op(Msg, State) ->
  -    case gc_bpactive(State) of
  +    ok.
  +
  +-spec on_post_op(comm:message(), user_state(), gc_state())
  +                -> ok.
  +on_post_op(Msg, UState, GCState) ->
  +    case gc_bpactive(GCState) of
           true ->
               ?TRACE_BP_STEPS("~n"
                               "*** Trigger post-op...~n"
  
positive.code: %% @end
  %% @version $Id$
  -module(gen_component).
  -vsn('$Id$').
  
  -include("scalaris.hrl").
  
  
negative.code:                           erlang:element(3, T) =:= [Msg, UState] andalso
                            Reason =:= function_clause andalso
                            Level =:= error ->
                          on_unknown_event(Msg, UState, T1GCState),
                          {'$gc_unknown_event'};
                      _ ->
                          on_exception(Msg, Level, Reason, Stacktrace,
                                       UState, T1GCState),
                          {'$gc_exception'}
                  end
          end,
      case T2State of
  