class DefaultExecutionEventCatapult implements ExecutionEventCatapult {

    @Override
    public void fire(ExecutionEvent.Type eventType, MavenSession session, MojoExecution mojoExecution) {
        fire(eventType, session, mojoExecution, null);
    }

    @Override
    public void fire(
            ExecutionEvent.Type eventType, MavenSession session, MojoExecution mojoExecution, Exception exception) {<FILL_FUNCTION_BODY>}
}

        ExecutionListener listener = session.getRequest().getExecutionListener();

        if (listener != null) {
            ExecutionEvent event = new DefaultExecutionEvent(eventType, session, mojoExecution, exception);

            switch (eventType) {
                case ProjectDiscoveryStarted:
                    listener.projectDiscoveryStarted(event);
                    break;

                case SessionStarted:
                    listener.sessionStarted(event);
                    break;
                case SessionEnded:
                    listener.sessionEnded(event);
                    break;

                case ProjectSkipped:
                    listener.projectSkipped(event);
                    break;
                case ProjectStarted:
                    listener.projectStarted(event);
                    break;
                case ProjectSucceeded:
                    listener.projectSucceeded(event);
                    break;
                case ProjectFailed:
                    listener.projectFailed(event);
                    break;

                case MojoSkipped:
                    listener.mojoSkipped(event);
                    break;
                case MojoStarted:
                    listener.mojoStarted(event);
                    break;
                case MojoSucceeded:
                    listener.mojoSucceeded(event);
                    break;
                case MojoFailed:
                    listener.mojoFailed(event);
                    break;

                case ForkStarted:
                    listener.forkStarted(event);
                    break;
                case ForkSucceeded:
                    listener.forkSucceeded(event);
                    break;
                case ForkFailed:
                    listener.forkFailed(event);
                    break;

                case ForkedProjectStarted:
                    listener.forkedProjectStarted(event);
                    break;
                case ForkedProjectSucceeded:
                    listener.forkedProjectSucceeded(event);
                    break;
                case ForkedProjectFailed:
                    listener.forkedProjectFailed(event);
                    break;

                default:
                    throw new IllegalStateException("Unknown execution event type " + eventType);
            }
        }
    
<no_super_class>