Program: 8866
Project: 8866
Buggy source:
private void initializeInput(){
  inputListener=new RawInputListener(){
    @Override public void beginInput(){
    }
    @Override public void endInput(){
    }
    @Override public void onJoyAxisEvent(    JoyAxisEvent evt){
    }
    @Override public void onJoyButtonEvent(    JoyButtonEvent evt){
    }
    @Override public void onMouseMotionEvent(    MouseMotionEvent evt){
      mousePosition.set(evt.getX(),evt.getY());
      keeperHand.setPosition(evt.getX(),evt.getY());
    }
    @Override public void onMouseButtonEvent(    MouseButtonEvent evt){
      timeFromLastUpdate=0;
      if (isOnGui || !isOnMap) {
        return;
      }
      if (evt.getButtonIndex() == MouseInput.BUTTON_LEFT) {
        if (evt.isPressed()) {
          if (interactionState.getType() == Type.SPELL) {
            if (interactiveControl != null && interactionState.getItemId() == SPELL_POSSESSION_ID && interactiveControl.isPickable(player.getPlayerId())) {
              CreatureControl cc=interactiveControl.getSpatial().getControl(CreatureControl.class);
              if (cc != null) {
                onPossession(cc);
                setInteractionState(Type.NONE,0);
              }
            }
          }
 else           if (interactionState.getType() == Type.TRAP) {
          }
 else           if (interactionState.getType() == Type.DOOR) {
          }
 else           if (interactionState.getType() == Type.NONE && interactiveControl != null && !keeperHand.isFull() && interactiveControl.isPickable(player.getPlayerId())) {
            pickupObject(interactiveControl);
          }
 else {
            if (selectionHandler.isVisible()) {
              selectionHandler.setActive(true);
            }
            if (isTaggable) {
              updateCursor();
              Vector2f pos=selectionHandler.getPointedTilePosition();
              getWorldHandler().playSoundAtTile((int)pos.x,(int)pos.y,"String_Node_Str");
            }
          }
        }
 else         if (evt.isReleased() && selectionHandler.isActive()) {
          SelectionArea selectionArea=selectionHandler.getSelectionArea();
          if (interactionState.getType() == Type.NONE || (interactionState.getType() == Type.ROOM && getWorldHandler().isTaggable((int)selectionArea.getRealStart().x,(int)selectionArea.getRealStart().y))) {
            boolean select=!getWorldHandler().isSelected((int)Math.max(0,selectionArea.getRealStart().x),(int)Math.max(0,selectionArea.getRealStart().y));
            getWorldHandler().selectTiles(selectionArea,select,player.getPlayerId());
          }
 else           if (interactionState.getType() == Type.ROOM && getWorldHandler().isBuildable((int)selectionArea.getRealStart().x,(int)selectionArea.getRealStart().y,player,gameState.getLevelData().getRoomById(interactionState.getItemId()))) {
            getWorldHandler().build(selectionArea,player,gameState.getLevelData().getRoomById(interactionState.getItemId()));
          }
 else           if (interactionState.getType() == Type.SELL) {
            getWorldHandler().sell(selectionArea,player);
          }
          selectionHandler.setActive(false);
          updateCursor();
        }
      }
 else       if (evt.getButtonIndex() == MouseInput.BUTTON_RIGHT && evt.isReleased()) {
        Vector2f pos=selectionHandler.getPointedTilePosition();
        if (interactionState.getType() == Type.NONE) {
          if (keeperHand.getItem() != null) {
            TileData tile=getWorldHandler().getMapData().getTile((int)pos.x,(int)pos.y);
            IInteractiveControl.DroppableStatus status=keeperHand.peek().getDroppableStatus(tile);
            if (status != IInteractiveControl.DroppableStatus.NOT_DROPPABLE) {
              keeperHand.pop().drop(tile,selectionHandler.getPointedPositionInTile(),interactiveControl);
              updateCursor();
            }
          }
 else           if (Main.isDebug()) {
            if (getWorldHandler().isTaggable((int)pos.x,(int)pos.y)) {
              getWorldHandler().digTile((int)pos.x,(int)pos.y);
            }
 else             if (getWorldHandler().isClaimable((int)pos.x,(int)pos.y,player.getPlayerId())) {
              getWorldHandler().claimTile((int)pos.x,(int)pos.y,player.getPlayerId());
            }
          }
 else           if (interactiveControl != null && interactiveControl.isInteractable(player.getPlayerId())) {
            getWorldHandler().playSoundAtTile((int)pos.x,(int)pos.y,KeeperHand.getSlapSound());
            interactiveControl.interact(player.getPlayerId());
          }
        }
        setInteractionState(Type.NONE,0);
        updateCursor();
        selectionHandler.setActive(false);
      }
 else       if (evt.getButtonIndex() == MouseInput.BUTTON_MIDDLE && evt.isReleased()) {
        Vector2f pos=selectionHandler.getPointedTilePosition();
        if (Main.isDebug()) {
          getWorldHandler().claimTile((int)pos.x,(int)pos.y,player.getPlayerId());
        }
      }
    }
    @Override public void onKeyEvent(    KeyInputEvent evt){
      if (evt.isPressed()) {
        if (evt.getKeyCode() == KeyInput.KEY_F12) {
          CheatState cheat=stateManager.getState(CheatState.class);
          if (!cheat.isEnabled()) {
            cheat.setEnabled(true);
          }
        }
 else         if (evt.getKeyCode() == ConsoleState.KEY && Main.isDebug()) {
          stateManager.getState(ConsoleState.class).setEnabled(true);
        }
 else         if (evt.getKeyCode() == (Integer)Settings.Setting.TOGGLE_PLAYER_INFORMATION.getDefaultValue()) {
          Element stats=view.findElementById("String_Node_Str");
          if (stats != null) {
            if (stats.isVisible()) {
              stats.hide();
            }
 else {
              stats.show();
            }
          }
        }
      }
    }
    @Override public void onTouchEvent(    TouchEvent evt){
    }
  }
;
}

Fixed version (ground truth):
private void initializeInput(){
  inputListener=new RawInputListener(){
    @Override public void beginInput(){
    }
    @Override public void endInput(){
    }
    @Override public void onJoyAxisEvent(    JoyAxisEvent evt){
    }
    @Override public void onJoyButtonEvent(    JoyButtonEvent evt){
    }
    @Override public void onMouseMotionEvent(    MouseMotionEvent evt){
      mousePosition.set(evt.getX(),evt.getY());
      keeperHand.setPosition(evt.getX(),evt.getY());
    }
    @Override public void onMouseButtonEvent(    MouseButtonEvent evt){
      timeFromLastUpdate=0;
      if (isOnGui || !isOnMap) {
        return;
      }
      if (evt.getButtonIndex() == MouseInput.BUTTON_LEFT) {
        if (evt.isPressed()) {
          if (interactionState.getType() == Type.SPELL) {
            if (interactiveControl != null && interactionState.getItemId() == SPELL_POSSESSION_ID && interactiveControl.isPickable(player.getPlayerId())) {
              CreatureControl cc=interactiveControl.getSpatial().getControl(CreatureControl.class);
              if (cc != null) {
                onPossession(cc);
                setInteractionState(Type.NONE,0);
              }
            }
          }
 else           if (interactionState.getType() == Type.TRAP) {
          }
 else           if (interactionState.getType() == Type.DOOR) {
          }
 else           if (interactionState.getType() == Type.NONE && interactiveControl != null && !keeperHand.isFull() && interactiveControl.isPickable(player.getPlayerId())) {
            pickupObject(interactiveControl);
          }
 else {
            if (selectionHandler.isVisible()) {
              selectionHandler.setActive(true);
            }
            if (isTaggable) {
              updateCursor();
              Vector2f pos=selectionHandler.getPointedTilePosition();
              getWorldHandler().playSoundAtTile((int)pos.x,(int)pos.y,"String_Node_Str");
            }
          }
        }
 else         if (evt.isReleased() && selectionHandler.isActive()) {
          SelectionArea selectionArea=selectionHandler.getSelectionArea();
          if (interactionState.getType() == Type.NONE || (interactionState.getType() == Type.ROOM && getWorldHandler().isTaggable((int)selectionArea.getRealStart().x,(int)selectionArea.getRealStart().y))) {
            boolean select=!getWorldHandler().isSelected((int)Math.max(0,selectionArea.getRealStart().x),(int)Math.max(0,selectionArea.getRealStart().y));
            getWorldHandler().selectTiles(selectionArea,select,player.getPlayerId());
          }
 else           if (interactionState.getType() == Type.ROOM && getWorldHandler().isBuildable((int)selectionArea.getRealStart().x,(int)selectionArea.getRealStart().y,player,gameState.getLevelData().getRoomById(interactionState.getItemId()))) {
            getWorldHandler().build(selectionArea,player,gameState.getLevelData().getRoomById(interactionState.getItemId()));
          }
 else           if (interactionState.getType() == Type.SELL) {
            getWorldHandler().sell(selectionArea,player);
          }
          selectionHandler.setActive(false);
          updateCursor();
        }
      }
 else       if (evt.getButtonIndex() == MouseInput.BUTTON_RIGHT && evt.isReleased()) {
        Vector2f pos=selectionHandler.getPointedTilePosition();
        if (interactionState.getType() == Type.NONE) {
          if (keeperHand.getItem() != null) {
            TileData tile=getWorldHandler().getMapData().getTile((int)pos.x,(int)pos.y);
            IInteractiveControl.DroppableStatus status=keeperHand.peek().getDroppableStatus(tile);
            if (status != IInteractiveControl.DroppableStatus.NOT_DROPPABLE) {
              keeperHand.pop().drop(tile,selectionHandler.getPointedPositionInTile(),interactiveControl);
              updateCursor();
            }
          }
 else           if (interactiveControl != null && interactiveControl.isInteractable(player.getPlayerId())) {
            getWorldHandler().playSoundAtTile((int)pos.x,(int)pos.y,KeeperHand.getSlapSound());
            interactiveControl.interact(player.getPlayerId());
          }
 else           if (Main.isDebug()) {
            if (getWorldHandler().isTaggable((int)pos.x,(int)pos.y)) {
              getWorldHandler().digTile((int)pos.x,(int)pos.y);
            }
 else             if (getWorldHandler().isClaimable((int)pos.x,(int)pos.y,player.getPlayerId())) {
              getWorldHandler().claimTile((int)pos.x,(int)pos.y,player.getPlayerId());
            }
          }
        }
        setInteractionState(Type.NONE,0);
        updateCursor();
        selectionHandler.setActive(false);
      }
 else       if (evt.getButtonIndex() == MouseInput.BUTTON_MIDDLE && evt.isReleased()) {
        Vector2f pos=selectionHandler.getPointedTilePosition();
        if (Main.isDebug()) {
          getWorldHandler().claimTile((int)pos.x,(int)pos.y,player.getPlayerId());
        }
      }
    }
    @Override public void onKeyEvent(    KeyInputEvent evt){
      if (evt.isPressed()) {
        if (evt.getKeyCode() == KeyInput.KEY_F12) {
          CheatState cheat=stateManager.getState(CheatState.class);
          if (!cheat.isEnabled()) {
            cheat.setEnabled(true);
          }
        }
 else         if (evt.getKeyCode() == ConsoleState.KEY && Main.isDebug()) {
          stateManager.getState(ConsoleState.class).setEnabled(true);
        }
 else         if (evt.getKeyCode() == (Integer)Settings.Setting.TOGGLE_PLAYER_INFORMATION.getDefaultValue()) {
          Element stats=view.findElementById("String_Node_Str");
          if (stats != null) {
            if (stats.isVisible()) {
              stats.hide();
            }
 else {
              stats.show();
            }
          }
        }
      }
    }
    @Override public void onTouchEvent(    TouchEvent evt){
    }
  }
;
}