Program: 187645
Project: 187645
Buggy source:
public boolean onCommand(CommandSender sender,Command command,String label,String[] args){
  if (sender instanceof Player) {
    Player owner=(Player)sender;
    if (MyPetList.hasMyPet(owner)) {
      MyPet MPet=MyPetList.getMyPet(owner);
      if (!MyPetPermissions.has(owner,"String_Node_Str")) {
        return true;
      }
      if (MPet.Status == PetState.Here) {
        if (MPet.getLocation().getWorld() != owner.getLocation().getWorld()) {
          MPet.removePet();
          MPet.setLocation(owner.getLocation());
          MPet.createPet();
          MPet.setSitting(false);
        }
 else {
          if (MPet.Pet.isInsideVehicle()) {
            MPet.Pet.leaveVehicle();
          }
          MPet.Pet.teleport(owner);
        }
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        MyPetUtil.getServer().getPluginManager().callEvent(new MyPetSpoutEvent(MPet,MyPetSpoutEventReason.Call));
        return true;
      }
 else       if (MPet.Status == PetState.Despawned) {
        MPet.setLocation(owner.getLocation());
        MPet.createPet();
        MPet.setSitting(false);
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        MyPetUtil.getServer().getPluginManager().callEvent(new MyPetSpoutEvent(MPet,MyPetSpoutEventReason.Call));
        return true;
      }
 else       if (MPet.Status == PetState.Dead) {
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name).replace("String_Node_Str","String_Node_Str" + MPet.RespawnTime));
        return true;
      }
    }
 else {
      sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")));
    }
  }
  return true;
}

Fixed version (ground truth):
public boolean onCommand(CommandSender sender,Command command,String label,String[] args){
  if (sender instanceof Player) {
    Player owner=(Player)sender;
    if (MyPetList.hasMyPet(owner)) {
      MyPet MPet=MyPetList.getMyPet(owner);
      if (!MyPetPermissions.has(owner,"String_Node_Str")) {
        return true;
      }
      if (MPet.Status == PetState.Here) {
        if (MPet.getLocation().getWorld() != owner.getLocation().getWorld()) {
          MPet.removePet();
          MPet.setLocation(owner.getLocation());
          MPet.createPet();
          MPet.setSitting(false);
        }
 else {
          if (MPet.getPet().isInsideVehicle()) {
            MPet.getPet().leaveVehicle();
          }
          MPet.getPet().teleport(owner);
        }
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        MyPetUtil.getServer().getPluginManager().callEvent(new MyPetSpoutEvent(MPet,MyPetSpoutEventReason.Call));
        return true;
      }
 else       if (MPet.Status == PetState.Despawned) {
        MPet.setLocation(owner.getLocation());
        MPet.createPet();
        MPet.setSitting(false);
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        MyPetUtil.getServer().getPluginManager().callEvent(new MyPetSpoutEvent(MPet,MyPetSpoutEventReason.Call));
        return true;
      }
 else       if (MPet.Status == PetState.Dead) {
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name).replace("String_Node_Str","String_Node_Str" + MPet.RespawnTime));
        return true;
      }
    }
 else {
      sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")));
    }
  }
  return true;
}