Program: 179022
Project: 179022
Buggy source:
@Override public void execute(Listener listener,Event event) throws EventException {
  if (event instanceof PlayerChatEvent) {
    PlayerChatEvent e=(PlayerChatEvent)event;
    chat(e);
  }
 else   if (event instanceof PlayerJoinEvent) {
    PlayerJoinEvent e=(PlayerJoinEvent)event;
    userInit(e);
  }
 else   if (event instanceof PlayerQuitEvent) {
    PlayerQuitEvent e=(PlayerQuitEvent)event;
    quitFinalize(e);
  }
 else   if (event instanceof PlayerKickEvent) {
    PlayerKickEvent e=(PlayerKickEvent)event;
    kickFinalize(e);
  }
 else   if (event instanceof PlayerInteractEvent) {
    PlayerInteractEvent e=(PlayerInteractEvent)event;
    logWand(e);
    if (e.isCancelled()) {
      return;
    }
    bookshelfInteract(e);
    spawnerEggEvent(e);
    lockInteract(e);
    disposalChestInteract(e);
    strikeBind(e);
    lotSelectInteract(e);
    chestOpenLog(e);
  }
 else   if (event instanceof PlayerBucketEmptyEvent) {
    PlayerBucketEmptyEvent e=(PlayerBucketEmptyEvent)event;
    lotBucketEmpty(e);
    jailBucketEmpty(e);
    logBucket(e);
  }
 else   if (event instanceof PlayerBucketFillEvent) {
    PlayerBucketFillEvent e=(PlayerBucketFillEvent)event;
    lotBucketFill(e);
    jailBucketFill(e);
  }
 else   if (event instanceof PlayerRespawnEvent) {
    PlayerRespawnEvent e=(PlayerRespawnEvent)event;
    pvpRespawn(e);
  }
 else   if (event instanceof PlayerPortalEvent) {
    PlayerPortalEvent e=(PlayerPortalEvent)event;
    checkPortal(e);
    flyPortal(e);
  }
 else   if (event instanceof PlayerTeleportEvent) {
    PlayerTeleportEvent e=(PlayerTeleportEvent)event;
    sendSkins(e.getPlayer(),e.getTo());
    flyTeleport(e);
  }
 else   if (event instanceof PlayerMoveEvent) {
    PlayerMoveEvent e=(PlayerMoveEvent)event;
    sendSkins(e.getPlayer(),e.getTo());
    areaMoveCheck(e);
    BenCmd.getMonitorController().playerMove(e.getPlayer());
  }
 else   if (event instanceof PlayerLoginEvent) {
    PlayerLoginEvent e=(PlayerLoginEvent)event;
    loginCheck(e);
  }
 else   if (event instanceof PlayerPickupItemEvent) {
    PlayerPickupItemEvent e=(PlayerPickupItemEvent)event;
    jailPickupCheck(e);
  }
 else   if (event instanceof PlayerDropItemEvent) {
    PlayerDropItemEvent e=(PlayerDropItemEvent)event;
    jailDropCheck(e);
  }
 else   if (event instanceof PlayerInteractEntityEvent) {
    PlayerInteractEntityEvent e=(PlayerInteractEntityEvent)event;
    npcInteractEntity(e);
  }
}

Fixed version (ground truth):
@Override public void execute(Listener listener,Event event) throws EventException {
  if (event instanceof PlayerChatEvent) {
    PlayerChatEvent e=(PlayerChatEvent)event;
    chat(e);
  }
 else   if (event instanceof PlayerJoinEvent) {
    PlayerJoinEvent e=(PlayerJoinEvent)event;
    userInit(e);
  }
 else   if (event instanceof PlayerQuitEvent) {
    PlayerQuitEvent e=(PlayerQuitEvent)event;
    quitFinalize(e);
  }
 else   if (event instanceof PlayerKickEvent) {
    PlayerKickEvent e=(PlayerKickEvent)event;
    kickFinalize(e);
  }
 else   if (event instanceof PlayerInteractEvent) {
    PlayerInteractEvent e=(PlayerInteractEvent)event;
    logWand(e);
    if (e.isCancelled()) {
      return;
    }
    bookshelfInteract(e);
    spawnerEggInteract(e);
    lockInteract(e);
    disposalChestInteract(e);
    strikeBind(e);
    lotSelectInteract(e);
    chestOpenLog(e);
  }
 else   if (event instanceof PlayerBucketEmptyEvent) {
    PlayerBucketEmptyEvent e=(PlayerBucketEmptyEvent)event;
    lotBucketEmpty(e);
    jailBucketEmpty(e);
    logBucket(e);
  }
 else   if (event instanceof PlayerBucketFillEvent) {
    PlayerBucketFillEvent e=(PlayerBucketFillEvent)event;
    lotBucketFill(e);
    jailBucketFill(e);
  }
 else   if (event instanceof PlayerRespawnEvent) {
    PlayerRespawnEvent e=(PlayerRespawnEvent)event;
    pvpRespawn(e);
  }
 else   if (event instanceof PlayerPortalEvent) {
    PlayerPortalEvent e=(PlayerPortalEvent)event;
    checkPortal(e);
    flyPortal(e);
  }
 else   if (event instanceof PlayerTeleportEvent) {
    PlayerTeleportEvent e=(PlayerTeleportEvent)event;
    sendSkins(e.getPlayer(),e.getTo());
    flyTeleport(e);
  }
 else   if (event instanceof PlayerMoveEvent) {
    PlayerMoveEvent e=(PlayerMoveEvent)event;
    sendSkins(e.getPlayer(),e.getTo());
    areaMoveCheck(e);
    BenCmd.getMonitorController().playerMove(e.getPlayer());
  }
 else   if (event instanceof PlayerLoginEvent) {
    PlayerLoginEvent e=(PlayerLoginEvent)event;
    loginCheck(e);
  }
 else   if (event instanceof PlayerPickupItemEvent) {
    PlayerPickupItemEvent e=(PlayerPickupItemEvent)event;
    jailPickupCheck(e);
  }
 else   if (event instanceof PlayerDropItemEvent) {
    PlayerDropItemEvent e=(PlayerDropItemEvent)event;
    jailDropCheck(e);
  }
 else   if (event instanceof PlayerInteractEntityEvent) {
    PlayerInteractEntityEvent e=(PlayerInteractEntityEvent)event;
    npcInteractEntity(e);
  }
}