@VisibleForTesting
public AppContext() {
// Things that depend on nothing
this.keyBindings = new KeyBindings();
this.statusManager = new StatusManager();
this.messageFilter = new MessageFilter();
this.awesomeBoxModel = new AwesomeBoxModel();
this.awesomeBoxComponentHostModel = new AwesomeBoxComponentHostModel();
this.userActivityManager = new UserActivityManager();