Program: 134189
Project: 134189
Buggy source:
public void progress(){
  if (!player.isOnline() || player.isDead()) {
    remove();
    return;
  }
  if (!Methods.getBoundAbility(player).equalsIgnoreCase("String_Node_Str")) {
    remove();
    return;
  }
  if (target != null) {
    if ((target instanceof Player && !((Player)target).isOnline()) || target.isDead()) {
      remove();
      return;
    }
  }
  if (!player.isSneaking()) {
    isControlling=false;
    magnetized=false;
  }
  if (magnetized) {
    if (Methods.getEntitiesAroundPoint(player.getLocation(),magnetRange).size() == 0) {
      remove();
      return;
    }
    for (    Entity e : Methods.getEntitiesAroundPoint(player.getLocation(),magnetRange)) {
      Vector v=Methods.getDirection(e.getLocation(),player.getLocation());
      if (e instanceof Player && player.hasPermission("String_Node_Str") && player.getInventory().getItemInHand().getType() == Material.IRON_INGOT && player.getInventory().getItemInHand().getItemMeta().getDisplayName().equalsIgnoreCase("String_Node_Str")) {
        Player p=(Player)e;
        if (p.getEntityId() == player.getEntityId())         continue;
        ItemStack[] inventory=p.getInventory().getContents();
        for (        ItemStack is : inventory) {
          if (is == null)           continue;
          if (Arrays.asList(metalItems).contains(is.getType())) {
            p.getWorld().dropItem(p.getLocation(),is);
            is.setType(Material.AIR);
            is.setAmount(0);
          }
        }
        p.getInventory().setContents(inventory);
        ItemStack[] armor=p.getInventory().getArmorContents();
        for (        ItemStack is : armor) {
          if (Arrays.asList(metalItems).contains(is.getType())) {
            p.getWorld().dropItem(p.getLocation(),is);
            is.setType(Material.AIR);
            ;
          }
        }
        p.getInventory().setArmorContents(armor);
        if (Arrays.asList(metalItems).contains(p.getInventory().getItemInHand().getType())) {
          p.getWorld().dropItem(p.getLocation(),p.getEquipment().getItemInHand());
          p.getEquipment().setItemInHand(new ItemStack(Material.AIR,1));
        }
      }
      if ((e instanceof Zombie || e instanceof Skeleton) && player.hasPermission("String_Node_Str") && player.getInventory().getItemInHand().getType() == Material.IRON_INGOT && player.getInventory().getItemInHand().getItemMeta().getDisplayName().equalsIgnoreCase("String_Node_Str")) {
        LivingEntity le=(LivingEntity)e;
        ItemStack[] armor=le.getEquipment().getArmorContents();
        for (        ItemStack is : armor) {
          if (Arrays.asList(metalItems).contains(is.getType())) {
            le.getWorld().dropItem(le.getLocation(),is);
            is.setType(Material.AIR);
          }
        }
        le.getEquipment().setArmorContents(armor);
        if (Arrays.asList(metalItems).contains(le.getEquipment().getItemInHand().getType())) {
          le.getWorld().dropItem(le.getLocation(),le.getEquipment().getItemInHand());
          le.getEquipment().setItemInHand(new ItemStack(Material.AIR,1));
        }
      }
      if (e instanceof Item) {
        Item iron=(Item)e;
        if (Arrays.asList(metalItems).contains(iron.getItemStack().getType())) {
          iron.setVelocity(v.normalize().multiply(magnetPower));
        }
      }
    }
  }
  if (isBeingWorn && System.currentTimeMillis() > startTime + armorTime) {
    remove();
    return;
  }
  if (isControlling && player.isSneaking()) {
    if (metalclips == 1) {
      Location oldLocation=target.getLocation();
      Location loc=Methods.getTargetedLocation(player,(int)player.getLocation().distance(oldLocation));
      double distance=loc.distance(oldLocation);
      Vector v=Methods.getDirection(target.getLocation(),player.getLocation());
      if (distance > .5)       target.setVelocity(v.normalize().multiply(0.2));
      Methods.breakBreathbendingHold(target);
    }
    if (metalclips == 2) {
      Location oldLocation=target.getLocation();
      Location loc=Methods.getTargetedLocation(player,(int)player.getLocation().distance(oldLocation));
      double distance=loc.distance(oldLocation);
      Vector v=Methods.getDirection(target.getLocation(),Methods.getTargetedLocation(player,10));
      if (distance > 1.2)       target.setVelocity(v.normalize().multiply(0.2));
      Methods.breakBreathbendingHold(target);
    }
    if (metalclips >= 3) {
      Location oldLocation=target.getLocation();
      Location loc=Methods.getTargetedLocation(player,(int)player.getLocation().distance(oldLocation));
      double distance=loc.distance(oldLocation);
      Vector v=Methods.getDirection(oldLocation,Methods.getTargetedLocation(player,10));
      if (distance > 1.2)       target.setVelocity(v.normalize().multiply(.5));
 else       target.setVelocity(new Vector(0,0,0));
      target.setFallDistance(0);
      Methods.breakBreathbendingHold(target);
    }
    if (metalclips == 4) {
      if (System.currentTimeMillis() > time + crushInterval) {
        time=System.currentTimeMillis();
        Methods.damageEntity(player,target,0);
        target.setHealth((target.getHealth() - crushDamage < 0) ? 0 : target.getHealth() - crushDamage);
      }
    }
  }
  for (int i=0; i < trackedIngots.size(); i++) {
    Item ii=trackedIngots.get(i);
    if (ii.isOnGround()) {
      trackedIngots.remove(i);
      continue;
    }
    if (ii.getItemStack().getType() == Material.IRON_INGOT) {
      if (Methods.getEntitiesAroundPoint(ii.getLocation(),2).size() == 0) {
        remove();
        return;
      }
      for (      Entity e : Methods.getEntitiesAroundPoint(ii.getLocation(),2)) {
        if (e instanceof LivingEntity && e.getEntityId() != player.getEntityId()) {
          if (e instanceof Player || e instanceof Zombie || e instanceof Skeleton) {
            if (target == null)             target=(LivingEntity)e;
            formArmor();
          }
 else {
            Methods.damageEntity(player,e,5);
            ii.getWorld().dropItem(ii.getLocation(),ii.getItemStack());
            remove();
          }
          ii.remove();
        }
      }
    }
  }
  removeDeadIngots();
}

Fixed version (ground truth):
public void progress(){
  if (!player.isOnline() || player.isDead()) {
    remove();
    return;
  }
  if (Methods.getBoundAbility(player) == null || !Methods.getBoundAbility(player).equalsIgnoreCase("String_Node_Str")) {
    remove();
    return;
  }
  if (target != null) {
    if ((target instanceof Player && !((Player)target).isOnline()) || target.isDead()) {
      remove();
      return;
    }
  }
  if (!player.isSneaking()) {
    isControlling=false;
    magnetized=false;
  }
  if (magnetized) {
    if (Methods.getEntitiesAroundPoint(player.getLocation(),magnetRange).size() == 0) {
      remove();
      return;
    }
    for (    Entity e : Methods.getEntitiesAroundPoint(player.getLocation(),magnetRange)) {
      Vector v=Methods.getDirection(e.getLocation(),player.getLocation());
      if (e instanceof Player && player.hasPermission("String_Node_Str") && player.getInventory().getItemInHand().getType() == Material.IRON_INGOT && player.getInventory().getItemInHand().getItemMeta().getDisplayName().equalsIgnoreCase("String_Node_Str")) {
        Player p=(Player)e;
        if (p.getEntityId() == player.getEntityId())         continue;
        ItemStack[] inventory=p.getInventory().getContents();
        for (        ItemStack is : inventory) {
          if (is == null)           continue;
          if (Arrays.asList(metalItems).contains(is.getType())) {
            p.getWorld().dropItem(p.getLocation(),is);
            is.setType(Material.AIR);
            is.setAmount(0);
          }
        }
        p.getInventory().setContents(inventory);
        ItemStack[] armor=p.getInventory().getArmorContents();
        for (        ItemStack is : armor) {
          if (Arrays.asList(metalItems).contains(is.getType())) {
            p.getWorld().dropItem(p.getLocation(),is);
            is.setType(Material.AIR);
            ;
          }
        }
        p.getInventory().setArmorContents(armor);
        if (Arrays.asList(metalItems).contains(p.getInventory().getItemInHand().getType())) {
          p.getWorld().dropItem(p.getLocation(),p.getEquipment().getItemInHand());
          p.getEquipment().setItemInHand(new ItemStack(Material.AIR,1));
        }
      }
      if ((e instanceof Zombie || e instanceof Skeleton) && player.hasPermission("String_Node_Str") && player.getInventory().getItemInHand().getType() == Material.IRON_INGOT && player.getInventory().getItemInHand().getItemMeta().getDisplayName().equalsIgnoreCase("String_Node_Str")) {
        LivingEntity le=(LivingEntity)e;
        ItemStack[] armor=le.getEquipment().getArmorContents();
        for (        ItemStack is : armor) {
          if (Arrays.asList(metalItems).contains(is.getType())) {
            le.getWorld().dropItem(le.getLocation(),is);
            is.setType(Material.AIR);
          }
        }
        le.getEquipment().setArmorContents(armor);
        if (Arrays.asList(metalItems).contains(le.getEquipment().getItemInHand().getType())) {
          le.getWorld().dropItem(le.getLocation(),le.getEquipment().getItemInHand());
          le.getEquipment().setItemInHand(new ItemStack(Material.AIR,1));
        }
      }
      if (e instanceof Item) {
        Item iron=(Item)e;
        if (Arrays.asList(metalItems).contains(iron.getItemStack().getType())) {
          iron.setVelocity(v.normalize().multiply(magnetPower));
        }
      }
    }
  }
  if (isBeingWorn && System.currentTimeMillis() > startTime + armorTime) {
    remove();
    return;
  }
  if (isControlling && player.isSneaking()) {
    if (metalclips == 1) {
      Location oldLocation=target.getLocation();
      Location loc=Methods.getTargetedLocation(player,(int)player.getLocation().distance(oldLocation));
      double distance=loc.distance(oldLocation);
      Vector v=Methods.getDirection(target.getLocation(),player.getLocation());
      if (distance > .5)       target.setVelocity(v.normalize().multiply(0.2));
      Methods.breakBreathbendingHold(target);
    }
    if (metalclips == 2) {
      Location oldLocation=target.getLocation();
      Location loc=Methods.getTargetedLocation(player,(int)player.getLocation().distance(oldLocation));
      double distance=loc.distance(oldLocation);
      Vector v=Methods.getDirection(target.getLocation(),Methods.getTargetedLocation(player,10));
      if (distance > 1.2)       target.setVelocity(v.normalize().multiply(0.2));
      Methods.breakBreathbendingHold(target);
    }
    if (metalclips >= 3) {
      Location oldLocation=target.getLocation();
      Location loc=Methods.getTargetedLocation(player,(int)player.getLocation().distance(oldLocation));
      double distance=loc.distance(oldLocation);
      Vector v=Methods.getDirection(oldLocation,Methods.getTargetedLocation(player,10));
      if (distance > 1.2)       target.setVelocity(v.normalize().multiply(.5));
 else       target.setVelocity(new Vector(0,0,0));
      target.setFallDistance(0);
      Methods.breakBreathbendingHold(target);
    }
    if (metalclips == 4) {
      if (System.currentTimeMillis() > time + crushInterval) {
        time=System.currentTimeMillis();
        Methods.damageEntity(player,target,0);
        target.setHealth((target.getHealth() - crushDamage < 0) ? 0 : target.getHealth() - crushDamage);
      }
    }
  }
  for (int i=0; i < trackedIngots.size(); i++) {
    Item ii=trackedIngots.get(i);
    if (ii.isOnGround()) {
      trackedIngots.remove(i);
      continue;
    }
    if (ii.getItemStack().getType() == Material.IRON_INGOT) {
      if (Methods.getEntitiesAroundPoint(ii.getLocation(),2).size() == 0) {
        remove();
        return;
      }
      for (      Entity e : Methods.getEntitiesAroundPoint(ii.getLocation(),2)) {
        if (e instanceof LivingEntity && e.getEntityId() != player.getEntityId()) {
          if (e instanceof Player || e instanceof Zombie || e instanceof Skeleton) {
            if (target == null)             target=(LivingEntity)e;
            formArmor();
          }
 else {
            Methods.damageEntity(player,e,5);
            ii.getWorld().dropItem(ii.getLocation(),ii.getItemStack());
            remove();
          }
          ii.remove();
        }
      }
    }
  }
  removeDeadIngots();
}