}
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        DaemonStopEvent stopEvent = (DaemonStopEvent) o;
        return timestamp.getTime() == stopEvent.timestamp.getTime()
            && (reason != null ? reason.equals(stopEvent.reason) : stopEvent.reason == null);
    }

    @Override
    public int hashCode() {
        int result = timestamp.hashCode();

    @Override
    public void storeStopEvent(final DaemonStopEvent stopEvent) {
        lock.lock();
        try {
            LOGGER.debug("Storing daemon stop event with timestamp {}", stopEvent.getTimestamp().getTime());
            cache.update(new ObjectHolder.UpdateAction<DaemonRegistryContent>() {
                @Override
                public DaemonRegistryContent update(DaemonRegistryContent content) {

                        if (!pidWritten) {
                            System.out.println("Worker daemon pid is " + ProcessHandle.current().pid());
                            FileObject file = processingEnv.getFiler().createResource(StandardLocation.SOURCE_OUTPUT, "resources", "pid.txt");
                            Writer writer = file.openWriter();
                            writer.write(String.valueOf(ProcessHandle.current().pid()));