Program: 187646
Project: 187646
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.Despawned) {
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")));
        return true;
      }
      if (args.length < 1) {
        return false;
      }
      String name="String_Node_Str";
      for (      String arg : args) {
        name+=arg + "String_Node_Str";
      }
      name=name.substring(0,name.length() - 1);
      if (MPet.Name.equalsIgnoreCase(name)) {
        if (MPet.getSkillSystem().hasSkill("String_Node_Str") && MPet.getSkillSystem().getSkill("String_Node_Str").getLevel() > 0) {
          World world=MPet.Pet.getHandle().world;
          Location loc=MPet.getLocation();
          for (          ItemStack is : ((Inventory)MPet.getSkillSystem().getSkill("String_Node_Str")).inv.getContents()) {
            if (is != null) {
              EntityItem entity=new EntityItem(world,loc.getX(),loc.getY(),loc.getZ(),is);
              entity.pickupDelay=10;
              world.addEntity(entity);
            }
          }
        }
        MPet.getLocation().getWorld().spawnCreature(MPet.getLocation(),MPet.getPetType().getEntityType());
        MPet.removePet();
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        MyPetList.removeMyPet(MPet);
        MyPetPlugin.getPlugin().savePets(MyPetPlugin.NBTPetFile);
        return true;
      }
 else {
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        return false;
      }
    }
 else {
      sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")));
    }
  }
  return false;
}

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.Despawned) {
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")));
        return true;
      }
      if (args.length < 1) {
        return false;
      }
      String name="String_Node_Str";
      for (      String arg : args) {
        name+=arg + "String_Node_Str";
      }
      name=name.substring(0,name.length() - 1);
      if (MPet.Name.equalsIgnoreCase(name)) {
        if (MPet.getSkillSystem().hasSkill("String_Node_Str") && MPet.getSkillSystem().getSkill("String_Node_Str").getLevel() > 0) {
          World world=MPet.getPet().getHandle().world;
          Location loc=MPet.getLocation();
          for (          ItemStack is : ((Inventory)MPet.getSkillSystem().getSkill("String_Node_Str")).inv.getContents()) {
            if (is != null) {
              EntityItem entity=new EntityItem(world,loc.getX(),loc.getY(),loc.getZ(),is);
              entity.pickupDelay=10;
              world.addEntity(entity);
            }
          }
        }
        MPet.getLocation().getWorld().spawnCreature(MPet.getLocation(),MPet.getPetType().getEntityType());
        MPet.removePet();
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        MyPetList.removeMyPet(MPet);
        MyPetPlugin.getPlugin().savePets(MyPetPlugin.NBTPetFile);
        return true;
      }
 else {
        sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")).replace("String_Node_Str",MPet.Name));
        return false;
      }
    }
 else {
      sender.sendMessage(MyPetUtil.setColors(MyPetLanguage.getString("String_Node_Str")));
    }
  }
  return false;
}