Program: 24648
Project: 24648
Buggy source:
public GameServer(){
  try {
    server=new UDPServer(55555,new ClientQueryParser());
  }
 catch (  SocketException e) {
    e.printStackTrace();
  }
  chests.add(new Chest(80,80,1000,WeaponFactory.getWeaponById("String_Node_Str"),WeaponFactory.getWeaponById("String_Node_Str")));
  chests.add(new Chest(0,80,2033,ArmorFactory.getArmorById("String_Node_Str"),ArmorFactory.getArmorById("String_Node_Str")));
  enemies.add(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.GUARD,chests.get(0)),Element.NEUTRAL,5,640,160));
  enemies.add(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.SCOUT,null),Element.NEUTRAL,5,640,640));
  enemies.add(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.SCOUT,null),Element.NEUTRAL,5,1280,1200));
  enemies.add(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.ASSASSIN,null),Element.NEUTRAL,5,720,720));
  AgentRule rule=new AgentRule(AgentType.GUARD,AgentGoal.GUARD_CHEST){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      if (target != null)       agent.patrol(target);
    }
  }
;
  AgentRule rule2=new AgentRule(AgentType.GUARD,AgentGoal.KILL_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      List<Player> tmpPlayers=new ArrayList<Player>(players);
      for (      Player p : tmpPlayers) {
        if (agent.canSee(p)) {
          target=p;
          break;
        }
      }
      if (target != null)       agent.attack(target);
    }
  }
;
  AgentRule rule3=new AgentRule(AgentType.SCOUT,AgentGoal.FIND_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      agent.search(getLastKnownLocation());
    }
  }
;
  AgentRule rule4=new AgentRule(AgentType.SCOUT,AgentGoal.KILL_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      if (target != null)       agent.attack(target);
    }
  }
;
  AgentRule rule5=new AgentRule(AgentType.ASSASSIN,AgentGoal.KILL_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      List<Player> tmpPlayers=new ArrayList<Player>(players);
      for (      Player p : tmpPlayers) {
        if (agent.canSee(p)) {
          target=p;
          break;
        }
      }
      if (target != null)       agent.attack(target);
    }
  }
;
  aiRules.add(rule);
  aiRules.add(rule2);
  aiRules.add(rule3);
  aiRules.add(rule4);
  aiRules.add(rule5);
  new Thread(new ServerLoop()).start();
}

Fixed version (ground truth):
public GameServer(){
  try {
    server=new UDPServer(55555,new ClientQueryParser());
  }
 catch (  SocketException e) {
    e.printStackTrace();
  }
  chests.add(new Chest(80,80,1000,WeaponFactory.getWeaponById("String_Node_Str"),WeaponFactory.getWeaponById("String_Node_Str")));
  chests.add(new Chest(0,80,2033,ArmorFactory.getArmorById("String_Node_Str"),ArmorFactory.getArmorById("String_Node_Str")));
  spawnEnemy(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.GUARD,chests.get(0)),Element.NEUTRAL,5,640,160));
  spawnEnemy(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.SCOUT,null),Element.NEUTRAL,5,640,640));
  spawnEnemy(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.SCOUT,null),Element.NEUTRAL,5,1280,1200));
  spawnEnemy(new Enemy("String_Node_Str","String_Node_Str",EnemyType.NORMAL,new AgentBehaviour(AgentType.ASSASSIN,null),Element.NEUTRAL,5,720,720));
  AgentRule rule=new AgentRule(AgentType.GUARD,AgentGoal.GUARD_CHEST){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      if (target != null)       agent.patrol(target);
    }
  }
;
  AgentRule rule2=new AgentRule(AgentType.GUARD,AgentGoal.KILL_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      List<Player> tmpPlayers=new ArrayList<Player>(players);
      for (      Player p : tmpPlayers) {
        if (agent.canSee(p)) {
          target=p;
          break;
        }
      }
      if (target != null)       agent.attack(target);
    }
  }
;
  AgentRule rule3=new AgentRule(AgentType.SCOUT,AgentGoal.FIND_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      agent.search(getLastKnownLocation());
    }
  }
;
  AgentRule rule4=new AgentRule(AgentType.SCOUT,AgentGoal.KILL_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      if (target != null)       agent.attack(target);
    }
  }
;
  AgentRule rule5=new AgentRule(AgentType.ASSASSIN,AgentGoal.KILL_PLAYER){
    @Override public void execute(    EnemyAgent agent,    AgentGoalTarget target){
      List<Player> tmpPlayers=new ArrayList<Player>(players);
      for (      Player p : tmpPlayers) {
        if (agent.canSee(p)) {
          target=p;
          break;
        }
      }
      if (target != null)       agent.attack(target);
    }
  }
;
  aiRules.add(rule);
  aiRules.add(rule2);
  aiRules.add(rule3);
  aiRules.add(rule4);
  aiRules.add(rule5);
  new Thread(new ServerLoop()).start();
}