Fireball Crashes server?

Hey,
I have my own classes mod on the server which is most likely why this error occurs so often. When someone hits a fireball back or shoots one on some occasions we get this error and hte whole server stops and crashes:

Code:

[16:27:33] [Server thread/ERROR]: Encountered an unexpected exception
net.minecraft.server.v1_7_R4.ReportedException: Ticking entity
    at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:653) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:258) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:558) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:469) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
Caused by: java.lang.NullPointerException
    at org.bukkit.event.entity.EntityDamageEvent.<init>(EntityDamageEvent.java:45) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at org.bukkit.event.entity.EntityDamageByEntityEvent.<init>(EntityDamageByEntityEvent.java:26) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:528) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:446) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.handleNonLivingEntityDamageEvent(CraftEventFactory.java:573) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.EntityFireball.damageEntity(EntityFireball.java:238) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.EntityLargeFireball.a(EntityLargeFireball.java:20) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.EntityFireball.h(EntityFireball.java:131) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.World.entityJoinedWorld(World.java:1418) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.World.playerJoinedWorld(World.java:1396) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1281) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:481) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]
    at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:649) ~[minecraft_server.jar:git-Bukkit-1.7.9-R0.2-13-gf6dffcf-b3102jnks]

I understand it's a bukkit error but is there something I can do to prevent it myself, override the event?

 

You want to make a fireball shot? Try this:

Code:java

Fireball f = (Fireball)player.getPlayer().launchProjectile(Fireball.class);

 

ChrystianSandu Um what, no the entire server crashes when a fireball is hit by an entity. It's crashed at least 30 times today, not due to my plugin:

java.lang.NullPointerException at org.bukkit.event.entity.EntityDamageEvent

Please read the question.

 

I read it, but I havent this problem and I kill entity with fireball.

 

belven000 try using a different build same version of craftbukkit to run your server and see if you come up with the same error

 

jacklin213 I wish i could I don't have access to the bukkit version on the server. I can on my local but that's not where it needs to be fixed.

 

belven000 wait so it works fine on your local server?

 

jacklin213 No sorry, I was half asleep when i wrote that, I can't change the bukkit.jar the live server uses
and it also breaks on my local

 

belven000 Event if you use a different build of craftbukkit on your local? SideNote: I am half asleep all the time too, dw its not just you

 

3104 fixes something to do with EntityDamageEvent.

 

Well, This issue has currently made me lose about 20 new players, due to crashing complaints, and I've had to disbale my mage and all ghasts on the server to tr and stop it.

It's still breaking so there must be another plugin using the event and checking .getShooter() on projectiles which is Deprecated.

Oh well I'll have to live with it for now.

 

If 3104 doesn't work, maybe go back to 3092 ?

 

This isn't a bukkit error, fireballs spawned by other plugins, dispensers and ghasts work fine.
Paste code please.

 

Necrodoom There is no code anymore. I've removed it all

Bobcat00 I can't change the bukkit version that my live server uses, but thanks anyway

 

Looks like the possibly wrongly spawned fireball is still on the map and you need to take it out with a map editor.

 

Necrodoom After I removed my code using .getShooter() etc it seems to be fixed or at least hasn't crashed in a while. and as a precaution I also deny fireballs from spawning at all now

 

belven000 then I can't help you figure out what you did wrong in the code that led to the crash.