Angelofdeath324

This is my first mod so don't assume I know anything! I am doing this to practice the java I learned off a free online tutorial. I am trying to add another type of generator to Extra Utilities that runs off enchanted items but when I place it down i get this crash: [19:18:05] [server thread/ERROR]: Encountered an unexpected exception net.minecraft.util.ReportedException: Ticking block entity at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:642) ~[MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) ~[MinecraftServer.class:?] at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111) ~[bsx.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [?:?] Caused by: java.lang.NullPointerException at tileentity.TileEntityEnchantGenerator.getFuelBurn(TileEntityEnchantGenerator.java:42) ~[TileEntityEnchantGenerator.class:?] at com.rwtema.extrautils.tileentity.generators.TileEntityGeneratorFurnace.burnItem(TileEntityGeneratorFurnace.java:52) ~[TileEntityGeneratorFurnace.class:?] at com.rwtema.extrautils.tileentity.generators.TileEntityGeneratorFurnace.processInput(TileEntityGeneratorFurnace.java:39) ~[TileEntityGeneratorFurnace.class:?] at com.rwtema.extrautils.tileentity.generators.TileEntityGenerator.func_145845_h(TileEntityGenerator.java:214) ~[TileEntityGenerator.class:?] at net.minecraft.world.World.func_72939_s(World.java:1939) ~[ahb.class:?] at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489) ~[mt.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636) ~[MinecraftServer.class:?] ... 4 more Heres the code I wrote: package tileentity; import com.rwtema.extrautils.tileentity.generators.TileEntityGeneratorFurnace; import net.minecraft.enchantment.EnchantmentHelper; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; public class TileEntityEnchantGenerator extends TileEntityGeneratorFurnace { double curLevel; public TileEntityEnchantGenerator() { super(); this.curLevel=0; } public int getTotalEnchantmentLevel(ItemStack fuel){ if(fuel.isItemEnchanted()){ int sum =0; for (int i = 0; i < 255 ;i++){ int l = EnchantmentHelper.getEnchantmentLevel(i, fuel); sum = sum + l; } return sum; } else return 0; } @Override public int transferLimit() { return 2000; } @Override public void readFromNBT(final NBTTagCompound nbt) { super.readFromNBT(nbt); this.curLevel = nbt.getDouble("curLevel"); } @Override public double getFuelBurn(final ItemStack item){ if (item.isItemEnchanted()){ if (item.isItemStackDamageable()){ return item.getMaxDamage(); } } return 0.0; } @Override public double getGenLevelForStack(final ItemStack item){ return 5*Math.pow(getTotalEnchantmentLevel(item),2); } @Override public void writeToNBT(final NBTTagCompound nbt) { super.writeToNBT(nbt); nbt.setDouble("curLevel", this.curLevel); } @Override public double genLevel() { return this.curLevel; } @Override public void adjustGenLevel(final ItemStack item) { this.curLevel = this.getGenLevelForStack(item); } } Can you please tell me where I went wrong? If you need me to paste any other classes just tell me and I will.