Program: 187710
Project: 187710
Buggy source:
public void run(){
  if (Status == WolfState.Despawned || getOwner() == null) {
    StopTimer();
  }
 else {
    if (Status == WolfState.Here) {
      EntityWolf wolf=((CraftWolf)Wolf).getHandle();
      Block CheckWayPoint=MyWolfUtil.getServer().getWorld(getLocation().getWorld().getUID()).getBlockAt(wolf.pathEntity.c().a,wolf.pathEntity.c().b,wolf.pathEntity.c().c);
      MyWolfUtil.Log.info("String_Node_Str");
      MyWolfUtil.Log.info("String_Node_Str" + CheckWayPoint);
      MyWolfUtil.Log.info("String_Node_Str" + wolf.pathEntity.c().a);
      MyWolfUtil.Log.info("String_Node_Str" + wolf.pathEntity.c().b);
      MyWolfUtil.Log.info("String_Node_Str" + wolf.pathEntity.c().c);
      SitTimer--;
      if (SitTimer <= 0) {
        Wolf.setSitting(true);
      }
      if (isPickup) {
        for (        Entity e : Wolf.getNearbyEntities(MyWolfConfig.PickupRange,MyWolfConfig.PickupRange,MyWolfConfig.PickupRange)) {
          if (e instanceof Item) {
            Item item=(Item)e;
            int amountleft=Inventory[0].addItem(item);
            if (amountleft == 0) {
              e.remove();
            }
 else {
              if (item.getItemStack().getAmount() > amountleft) {
                item.getItemStack().setAmount(amountleft);
              }
              if (MyWolfUtil.hasSkill(Abilities,"String_Node_Str")) {
                amountleft=Inventory[1].addItem(item);
                if (amountleft == 0) {
                  e.remove();
                }
 else {
                  if (item.getItemStack().getAmount() > amountleft) {
                    item.getItemStack().setAmount(amountleft);
                  }
                }
              }
            }
          }
        }
      }
      if (Behavior == BehaviorState.Agressive) {
        if (Wolf.getTarget() == null) {
          for (          Entity e : Wolf.getNearbyEntities(10,10,10)) {
            if (MyWolfUtil.getCreatureType(e) != null) {
              Wolf.setTarget((LivingEntity)e);
            }
          }
        }
      }
    }
    if (Status == WolfState.Dead) {
      RespawnTime--;
      if (RespawnTime <= 0) {
        RespawnWolf();
      }
    }
  }
}

Fixed version (ground truth):
public void run(){
  if (Status == WolfState.Despawned || getOwner() == null) {
    StopTimer();
  }
 else {
    if (Status == WolfState.Here) {
      SitTimer--;
      if (SitTimer <= 0) {
        Wolf.setSitting(true);
      }
      if (isPickup) {
        for (        Entity e : Wolf.getNearbyEntities(MyWolfConfig.PickupRange,MyWolfConfig.PickupRange,MyWolfConfig.PickupRange)) {
          if (e instanceof Item) {
            Item item=(Item)e;
            int amountleft=Inventory[0].addItem(item);
            if (amountleft == 0) {
              e.remove();
            }
 else {
              if (item.getItemStack().getAmount() > amountleft) {
                item.getItemStack().setAmount(amountleft);
              }
              if (MyWolfUtil.hasSkill(Abilities,"String_Node_Str")) {
                amountleft=Inventory[1].addItem(item);
                if (amountleft == 0) {
                  e.remove();
                }
 else {
                  if (item.getItemStack().getAmount() > amountleft) {
                    item.getItemStack().setAmount(amountleft);
                  }
                }
              }
            }
          }
        }
      }
      if (Behavior == BehaviorState.Agressive) {
        if (Wolf.getTarget() == null) {
          for (          Entity e : Wolf.getNearbyEntities(10,10,10)) {
            if (MyWolfUtil.getCreatureType(e) != null) {
              Wolf.setTarget((LivingEntity)e);
            }
          }
        }
      }
    }
    if (Status == WolfState.Dead) {
      RespawnTime--;
      if (RespawnTime <= 0) {
        RespawnWolf();
      }
    }
  }
}