Hey,

when my method starts mc get an error

 

  
private String[] firstnames = new String[] {"a", "b", "c"};

Random random;

public void setFirstName()
{
    this.firstName = this.firstnames[this.random.nextInt(this.firstnames.length)];
}

And the error:

net.minecraft.util.ReportedException: Ticking memory connection
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:198) ~[NetworkSystem.class:?]
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:716) ~[MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:604) ~[MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) ~[integratedServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:742) [MinecraftServer$2.class:?]
Caused by: java.lang.NullPointerException
at BetterWorld.mobs.EntityBetterVillager.setFirstName(EntityBetterVillager.java:260) ~[EntityBetterVillager.class:?]
at BetterWorld.mobs.EntityBetterVillager.onSpawnWithEgg(EntityBetterVillager.java:378) ~[EntityBetterVillager.class:?]
at net.minecraft.item.ItemMonsterPlacer.spawnCreature(ItemMonsterPlacer.java:181) ~[itemMonsterPlacer.class:?]
at net.minecraft.item.ItemMonsterPlacer.onItemUse(ItemMonsterPlacer.java:79) ~[itemMonsterPlacer.class:?]
at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:144) ~[itemStack.class:?]
at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:418) ~[itemInWorldManager.class:?]
at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:588) ~[NetHandlerPlayServer.class:?]
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) ~[C08PacketPlayerBlockPlacement.class:?]
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) ~[C08PacketPlayerBlockPlacement.class:?]
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:232) ~[NetworkManager.class:?]
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) ~[NetworkSystem.class:?]
... 5 more

 

 

 

 

Thanks

 

I had:

Random random;

and when I used rand from Entity, it works.