World world = null;
int x = 0, y = 0, z = 0, radius = 0;
AxisAlignedBB aabb = AxisAlignedBB.getBoundingBox(x - radius, y - radius, z - radius, x + radius, y + radius, z + radius);
List items = world.getEntitiesWithinAABB(EntityItem.class, aabb);
World world = null;
int x = 0, y = 0, z = 0, radius = 0;
AxisAlignedBB aabb = AxisAlignedBB.getBoundingBox(x - radius, y - radius, z - radius, x + radius, y + radius, z + radius);
List items = world.getEntitiesWithinAABB(EntityItem.class, aabb);
AxisAlignedBB aabb = AxisAlignedBB.getBoundingBox(player.posX - 5, player.posY - 5, player.posZ - 5, player.posX + 5, player.posY + 5, player.posZ + 5);
EntityTest e = new EntityTest(player.worldObj);
List items = player.worldObj.getEntitiesWithinAABB(EntityItem.class, aabb);
EntityItem entityitem = (EntityItem)items;
ItemStack entityT = entityitem.getEntityItem();
e.addItem(entityT);