Program: 187621
Project: 187621
Buggy source:
/** 
 * Checks whether this ai goal should be activated
 */
public boolean a(){
  if (!petEntity.canMove()) {
    return false;
  }
 else   if (this.petEntity.goalTarget == null) {
    return false;
  }
  if (myPet.getSkillSystem().hasSkill("String_Node_Str")) {
    Behavior behaviorSkill=(Behavior)myPet.getSkillSystem().getSkill("String_Node_Str");
    if (behaviorSkill.getLevel() > 0) {
      if (behaviorSkill.getBehavior() == Behavior.BehaviorState.Friendly) {
        return false;
      }
      if (behaviorSkill.getBehavior() == BehaviorState.Raid) {
        if (this.petEntity.goalTarget instanceof EntityTameableAnimal && ((EntityTameableAnimal)this.petEntity.goalTarget).isTamed()) {
          return false;
        }
        if (this.petEntity.goalTarget instanceof EntityMyPet) {
          return false;
        }
        if (this.petEntity.goalTarget instanceof EntityPlayer) {
          return false;
        }
      }
    }
  }
  if (this.target instanceof EntityPlayer) {
    Player targetPlayer=(Player)this.petEntity.goalTarget.getBukkitEntity();
    if (myPet.getOwner().equals(targetPlayer)) {
      return false;
    }
 else     if (!MyPetUtil.canHurt(myPet.getOwner().getPlayer(),targetPlayer)) {
      return false;
    }
  }
 else   if (this.target instanceof EntityMyPet) {
    MyPet targetMyPet=((EntityMyPet)this.target).getMyPet();
    if (!MyPetUtil.canHurt(myPet.getOwner().getPlayer(),targetMyPet.getOwner().getPlayer())) {
      return false;
    }
  }
  this.target=this.petEntity.goalTarget;
  this.petEntity.goalTarget=null;
  return true;
}

Fixed version (ground truth):
/** 
 * Checks whether this ai goal should be activated
 */
public boolean a(){
  if (!petEntity.canMove()) {
    return false;
  }
 else   if (this.petEntity.goalTarget == null) {
    return false;
  }
  if (myPet.getSkillSystem().hasSkill("String_Node_Str")) {
    Behavior behaviorSkill=(Behavior)myPet.getSkillSystem().getSkill("String_Node_Str");
    if (behaviorSkill.getLevel() > 0) {
      if (behaviorSkill.getBehavior() == Behavior.BehaviorState.Friendly) {
        return false;
      }
      if (behaviorSkill.getBehavior() == BehaviorState.Raid) {
        if (this.petEntity.goalTarget instanceof EntityTameableAnimal && ((EntityTameableAnimal)this.petEntity.goalTarget).isTamed()) {
          return false;
        }
        if (this.petEntity.goalTarget instanceof EntityMyPet) {
          return false;
        }
        if (this.petEntity.goalTarget instanceof EntityPlayer) {
          return false;
        }
      }
    }
  }
  if (this.petEntity.goalTarget instanceof EntityPlayer) {
    Player targetPlayer=(Player)this.petEntity.goalTarget.getBukkitEntity();
    if (myPet.getOwner().equals(targetPlayer)) {
      return false;
    }
 else     if (!MyPetUtil.canHurt(myPet.getOwner().getPlayer(),targetPlayer)) {
      return false;
    }
  }
 else   if (this.petEntity.goalTarget instanceof EntityMyPet) {
    MyPet targetMyPet=((EntityMyPet)this.target).getMyPet();
    if (!MyPetUtil.canHurt(myPet.getOwner().getPlayer(),targetMyPet.getOwner().getPlayer())) {
      return false;
    }
  }
  this.target=this.petEntity.goalTarget;
  this.petEntity.goalTarget=null;
  return true;
}