Solved item always null

I have been constantly been getting a NullPointerException, no matter what code I use. I haven't coded in Java for a couple months, so I am a bit rusty, can anyone help me out?

Code:

        for (ItemStack items : player.getInventory().getContents()) {
            if (items != null)
                if (items.hasItemMeta() && items.getType() == Material.WRITTEN_BOOK)
                    if (((BookMeta) items.getItemMeta()).getTitle().equals(ChatColor.BLUE + "test"))
                        items.setTypeId(0);
        }

 

Which line are you getting the NPE on?

 

all of the ones in the for loop, it doesn't matter what order I put them in, they all get nulls

 

pkt is player null? :3

 

no, just the items

Why does items.equals(null) give an npe when I'm checking to see if its null? And whats the difference between using == and .equals() ? one seems to work sometimes and the other doesnt...?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

You can use .equals() on a null since a null object doesn't have any specific functions. Add some debug such as

Code:

if (player == null) {
  getLogger().info("Player is null");
}
if (player.getInventory() == null) {
  getLogger().info("Inventory is null");
} 

to find the root of the NPE

 

I already did debugging.
For some reason... it just stopped giving npes.... I did not change any code or order.... but now my problem is removing the item, item.setType() to AIR or 0 won't work..

 

Player's can't carry an air block, if I recall correctly you might be able to do player.getInventory().remove(items)

 

Yea, just found that method in the JavaDocs... I remember setting items to air a long time ago.. I really need to keep up with Java, been away soo long. well thanks for helping!