private void handleDoor(BlockTransformEvent event, Door door) {
  BlockFace relative = door.isTopHalf() ? BlockFace.DOWN : BlockFace.UP;
  BlockState oldState = event.getOldState().getBlock().getRelative(relative).getState();
  BlockState newState = event.getBlock().getRelative(relative).getState();
  BlockTransformEvent toCall;
  if (event instanceof ParticipantBlockTransformEvent) {
    toCall =
        new ParticipantBlockTransformEvent(
            event, oldState, newState, ((ParticipantBlockTransformEvent) event).getPlayerState());
  } else if (event instanceof PlayerBlockTransformEvent) {
    toCall =
        new PlayerBlockTransformEvent(
            event, oldState, newState, ((PlayerBlockTransformEvent) event).getPlayerState());
  } else {
    toCall = new BlockTransformEvent(event, oldState, newState);
  }
  callEvent(toCall, true);
}
 

@Override
public void onEvent(InventoryClickEvent event) {
  super.onEvent(event);

  if (!(event.getClickedInventory() instanceof PlayerInventory) || event.getCursor() == null)
    return;

  ItemStack item = event.getCursor();
  if (BAD_TYPES.contains(item.getType()) || item.getData() instanceof Door) {
    event.setCancelled(true);
  }
}
 

private void callEvent(final BlockTransformEvent event, boolean checked) {
  if (!checked) {
    MaterialData oldData = event.getOldState().getMaterialData();
    MaterialData newData = event.getNewState().getMaterialData();
    if (oldData instanceof Door) {
      handleDoor(event, (Door) oldData);
    }
    if (newData instanceof Door) {
      handleDoor(event, (Door) newData);
    }
  }
  logger.fine("Generated event " + event);
  currentEvents.put(event.getCause(), event);
}
 

public void toggleDoor(Block b) {
    BlockState state = b.getState();
    if (state instanceof Door) {
        Door op = (Door) state.getData();
        if (!op.isOpen())
            op.setOpen(true);
        else
            op.setOpen(false);
        state.setData(op);
        state.update();
    }
}
 

public void toggleDoor(Block b) {
    BlockState state = b.getState();
    if (state instanceof Door) {
        Door op = (Door) state.getData();
        op.setOpen(!op.isOpen());
        state.setData(op);
        state.update();
    }
}
 

public void toggleDoor(Block b) {
    BlockState state = b.getState();
    if (state instanceof Door) {
        Door op = (Door) state.getData();
        if (!op.isOpen())
            op.setOpen(true);
        else
            op.setOpen(false);
        state.setData(op);
        state.update();
    }
}