"NullPointerException" in Event

Hello,

I quickly coded this plugin for an enchant that will be added to a pickaxe.
The pickaxe works as should, but I randomly get this error message in console. [Stack Trace]

Stack Trace Error (open) Stack Trace Error (close)

Code:

25.04 21:48:01 [Server] ERROR Could not pass event BlockBreakEvent to CEParadox v1.0
25.04 21:48:01 [Server] INFO org.bukkit.event.EventException
25.04 21:48:01 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerInteractManager.breakBlock(PlayerInteractManager.java:286) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerInteractManager.a(PlayerInteractManager.java:215) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:637) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.PacketPlayInBlockDig.a(SourceFile:40) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.PacketPlayInBlockDig.a(SourceFile:10) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_121]
25.04 21:48:01 [Server] INFO at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_121]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
25.04 21:48:01 [Server] INFO Caused by: java.lang.NullPointerException
25.04 21:48:01 [Server] INFO at me.reprisal.CEParadox.blockBreak(CEParadox.java:48) ~[?:?]
25.04 21:48:01 [Server] INFO at sun.reflect.GeneratedMethodAccessor588.invoke(Unknown Source) ~[?:?]
25.04 21:48:01 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
25.04 21:48:01 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
25.04 21:48:01 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.8.8.jar:git-Spigot-e4d4710-e1ebe52]
25.04 21:48:01 [Server] INFO ... 17 more

Here is my code. The error says it's occurring on the line of the if statement.

Code (open) Code (close)

Code:

    public void blockBreak(BlockBreakEvent e) {

        Player player = e.getPlayer();
        Block b = e.getBlock();
       
        if (player.getItemInHand().getType() == Material.DIAMOND_PICKAXE && player.getItemInHand().getItemMeta().getLore().contains(ChatColor.GRAY + "Aleph I")) {
            Block block;
            for (int xOff = -1; xOff <= 1; ++xOff) {
                for (int yOff = -1; yOff <= 1; ++yOff) {
                    for (int zOff = -1; zOff <= 1; ++zOff) {
                        block = b.getRelative(xOff, yOff, zOff);
                        WorldGuardPlugin worldGuard = getWorldGuard();
                        Vector pt = toVector(block);
                        RegionManager regionManager = worldGuard.getRegionManager(player.getWorld());
                        ApplicableRegionSet set = regionManager.getApplicableRegions(pt);
                        if (set.allows(DefaultFlag.BLOCK_BREAK)) {
                            block.breakNaturally();
                        }
                    }
                }
            }
        }
    }

Thanks in advance to anyone that can help!

 

@iAmReprisal

1. Why are you still on 1.8? Please read this.
2. The item in the player's hand can be null. Make sure it is not null before checking the type.
3. The item may not have an item meta. Check if it hasItemMeta before getting it.
4. Instead of continually getting the world gaurd instance and the region manager, get it once outside of the for loop.

 

@Zombie_Striker

I checked if it was bot null, and if it hasItemMeta, but I'm still getting the error.

 

@iAmReprisal
Is it the same error? If so, that means there is something on line 48 that has to be null.