Posted February 5, 201510 yr Hi, i have some problems with NBTs: For some reasons they are not transfered properly in between my Item. You will see what i mean in a second: Here's my class (not all, all takes 2000 lines, so i just put here code that isn't working), with 3 methods we're interested in: setItems: public static ItemStack setItems(Map<Integer, ItemStack> map, ItemStack itemstack){ fixTags(itemstack); for(int metadata = 1; metadata < 10; metadata++){ itemstack = setToolForMeta(itemstack, map.get(metadata), metadata); } /*for(ItemStack i : map.values()){ System.out.println(i.getDisplayName()); }*/ System.out.println("Are stacks equal: " + ItemStack.areItemStacksEqual(itemstack, ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound())))); NBTTagCompound tag = itemstack.writeToNBT(new NBTTagCompound()); System.out.println("Has tag: " + tag.hasKey("tag")); System.out.println("Has ctd: " + tag.getCompoundTag("tag").hasKey("compressedtooldata")); System.out.println("Has sword tag: " + tag.getCompoundTag("tag").getCompoundTag("compressedtooldata").hasKey("sword")); System.out.println("Sword nbt: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword"))); System.out.println("Sword for meta: " + getToolFromMeta(itemstack, 1)); System.out.println("Sword name: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); return itemstack; } setToolForMeta: public static ItemStack setToolForMeta(ItemStack itemstack, ItemStack tool, int metadata){ if(metadata == 1){ ItemStack ret = setSword(itemstack, tool); System.out.println("Are stacks equal: " + ItemStack.areItemStacksEqual(itemstack, ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound())))); NBTTagCompound tag = itemstack.writeToNBT(new NBTTagCompound()); System.out.println("Has tag: " + tag.hasKey("tag")); System.out.println("Has ctd: " + tag.getCompoundTag("tag").hasKey("compressedtooldata")); System.out.println("Has sword tag: " + tag.getCompoundTag("tag").getCompoundTag("compressedtooldata").hasKey("sword")); System.out.println("Sword: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword"))); System.out.println("Sword for meta: " + getToolFromMeta(itemstack, 1)); System.out.println("Sword name: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); return ret; } if(metadata == 2) return setPickaxe(itemstack, tool); if(metadata == 3) return setShovel(itemstack, tool); if(metadata == 4) return setAxe(itemstack, tool); if(metadata == 5) return setHoe(itemstack, tool); if(metadata == 6) return set6thItem(itemstack, tool); if(metadata == 7) return set7thItem(itemstack, tool); if(metadata == return set8thItem(itemstack, tool); if(metadata == 9) return set9thItem(itemstack, tool); return itemstack; } And finally setSword: public static ItemStack setSword(ItemStack itemstack, ItemStack tool){ fixTags(itemstack); if(tool == null) return nullifieSword(itemstack); NBTTagCompound nbt = itemstack.writeToNBT(new NBTTagCompound()); tool.writeToNBT(nbt.getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")); itemstack.readFromNBT(nbt); itemstack.setTagCompound(nbt.getCompoundTag("tag")); // System.out.println(tool.getDisplayName()); // System.out.println("Set sword: " + ItemStack.loadItemStackFromNBT(nbt.getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); System.out.println("Are stacks equal: " + ItemStack.areItemStacksEqual(itemstack, ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound())))); NBTTagCompound tag = itemstack.writeToNBT(new NBTTagCompound()); System.out.println("Has tag: " + tag.hasKey("tag")); System.out.println("Has ctd: " + tag.getCompoundTag("tag").hasKey("compressedtooldata")); System.out.println("Has sword tag: " + tag.getCompoundTag("tag").getCompoundTag("compressedtooldata").hasKey("sword")); System.out.println("Sword: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword"))); System.out.println("Sword name: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); return itemstack; } The problem is: the "sword" (AND ONLY THE SWORD!!!) isn't saved proper;y, how ever all others are saved: When i call setItems, with defined map, that's what i get in console: [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:224]: Are stacks equal: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:226]: Has tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:227]: Has ctd: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:228]: Has sword tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:229]: Sword: 1xitem.swordDiamond@0 [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:230]: Sword name: Diamond Sword [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:484]: Are stacks equal: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:486]: Has tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:487]: Has ctd: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:488]: Has sword tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:489]: Sword: 1xitem.swordDiamond@0 [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:490]: Sword for meta: 1xitem.swordDiamond@0 [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:491]: Sword name: Diamond Sword [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:671]: Are stacks equal: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:673]: Has tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:674]: Has ctd: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:675]: Has sword tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:676]: Sword nbt: null [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:677]: Sword for meta: null [19:51:52] [server thread/ERROR]: Encountered an unexpected exception net.minecraft.util.ReportedException: Exception while updating neighbours at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:198) ~[NetworkSystem.class:?] at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) ~[MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) ~[MinecraftServer.class:?] at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) ~[integratedServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) [MinecraftServer$2.class:?] Caused by: java.lang.NullPointerException at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.setItems(ItemCompressedTools.java:678) ~[itemCompressedTools.class:?] at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.createNewToolAndSetItems(ItemCompressedTools.java:653) ~[itemCompressedTools.class:?] at code.elix_x.mods.toolscompressor.tileentities.TileEntityToolsCompressor.start(TileEntityToolsCompressor.java:158) ~[TileEntityToolsCompressor.class:?] at code.elix_x.mods.toolscompressor.blocks.ToolsCompressor.onNeighborBlockChange(ToolsCompressor.java:96) ~[ToolsCompressor.class:?] at net.minecraft.world.World.notifyBlockOfNeighborChange(World.java:787) ~[World.class:?] at net.minecraft.world.World.notifyBlocksOfNeighborChange(World.java:737) ~[World.class:?] at net.minecraft.world.World.notifyBlockChange(World.java:697) ~[World.class:?] at net.minecraft.world.World.setBlockMetadataWithNotify(World.java:628) ~[World.class:?] at net.minecraft.block.BlockButton.onBlockActivated(BlockButton.java:248) ~[blockButton.class:?] at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:409) ~[itemInWorldManager.class:?] at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) ~[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:241) ~[NetworkManager.class:?] at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) ~[NetworkSystem.class:?] ... 5 more [19:51:52] [server thread/ERROR]: This crash report has been saved to: C:\my\mcmodding\mods\toolscompressor\eclipse\.\crash-reports\crash-2015-02-05_19.51.52-server.txt [19:51:52] [server thread/INFO]: Stopping server [19:51:52] [server thread/INFO]: Saving players [19:51:52] [Client thread/INFO] [sTDOUT]: [net.minecraft.client.Minecraft:displayCrashReport:388]: ---- Minecraft Crash Report ---- // I'm sorry, Dave. Time: 05.02.15 19:51 Description: Exception while updating neighbours java.lang.NullPointerException: Exception while updating neighbours at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.setItems(ItemCompressedTools.java:678) at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.createNewToolAndSetItems(ItemCompressedTools.java:653) at code.elix_x.mods.toolscompressor.tileentities.TileEntityToolsCompressor.start(TileEntityToolsCompressor.java:158) at code.elix_x.mods.toolscompressor.blocks.ToolsCompressor.onNeighborBlockChange(ToolsCompressor.java:96) at net.minecraft.world.World.notifyBlockOfNeighborChange(World.java:787) at net.minecraft.world.World.notifyBlocksOfNeighborChange(World.java:737) at net.minecraft.world.World.notifyBlockChange(World.java:697) at net.minecraft.world.World.setBlockMetadataWithNotify(World.java:628) at net.minecraft.block.BlockButton.onBlockActivated(BlockButton.java:248) at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:409) at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241) at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) ... Let's take a look at it comparing code and output: setSword: Code: public static ItemStack setSword(ItemStack itemstack, ItemStack tool){ fixTags(itemstack); if(tool == null) return nullifieSword(itemstack); NBTTagCompound nbt = itemstack.writeToNBT(new NBTTagCompound()); tool.writeToNBT(nbt.getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")); itemstack.readFromNBT(nbt); itemstack.setTagCompound(nbt.getCompoundTag("tag")); // System.out.println(tool.getDisplayName()); // System.out.println("Set sword: " + ItemStack.loadItemStackFromNBT(nbt.getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); System.out.println("Are stacks equal: " + ItemStack.areItemStacksEqual(itemstack, ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound())))); NBTTagCompound tag = itemstack.writeToNBT(new NBTTagCompound()); System.out.println("Has tag: " + tag.hasKey("tag")); System.out.println("Has ctd: " + tag.getCompoundTag("tag").hasKey("compressedtooldata")); System.out.println("Has sword tag: " + tag.getCompoundTag("tag").getCompoundTag("compressedtooldata").hasKey("sword")); System.out.println("Sword: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword"))); System.out.println("Sword name: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); return itemstack; } Output: [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:224]: Are stacks equal: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:226]: Has tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:227]: Has ctd: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:228]: Has sword tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:229]: Sword: 1xitem.swordDiamond@0 [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setSword:230]: Sword name: Diamond Sword setToolForMeta: Code: public static ItemStack setToolForMeta(ItemStack itemstack, ItemStack tool, int metadata){ if(metadata == 1){ ItemStack ret = setSword(itemstack, tool); System.out.println("Are stacks equal: " + ItemStack.areItemStacksEqual(itemstack, ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound())))); NBTTagCompound tag = itemstack.writeToNBT(new NBTTagCompound()); System.out.println("Has tag: " + tag.hasKey("tag")); System.out.println("Has ctd: " + tag.getCompoundTag("tag").hasKey("compressedtooldata")); System.out.println("Has sword tag: " + tag.getCompoundTag("tag").getCompoundTag("compressedtooldata").hasKey("sword")); System.out.println("Sword: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword"))); System.out.println("Sword for meta: " + getToolFromMeta(itemstack, 1)); System.out.println("Sword name: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); return ret; } if(metadata == 2) return setPickaxe(itemstack, tool); if(metadata == 3) return setShovel(itemstack, tool); if(metadata == 4) return setAxe(itemstack, tool); if(metadata == 5) return setHoe(itemstack, tool); if(metadata == 6) return set6thItem(itemstack, tool); if(metadata == 7) return set7thItem(itemstack, tool); if(metadata == return set8thItem(itemstack, tool); if(metadata == 9) return set9thItem(itemstack, tool); return itemstack; } Output: [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:484]: Are stacks equal: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:486]: Has tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:487]: Has ctd: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:488]: Has sword tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:489]: Sword: 1xitem.swordDiamond@0 [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:490]: Sword for meta: 1xitem.swordDiamond@0 [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setToolForMeta:491]: Sword name: Diamond Sword And setItems: Code: public static ItemStack setItems(Map<Integer, ItemStack> map, ItemStack itemstack){ fixTags(itemstack); for(int metadata = 1; metadata < 10; metadata++){ itemstack = setToolForMeta(itemstack, map.get(metadata), metadata); } /*for(ItemStack i : map.values()){ System.out.println(i.getDisplayName()); }*/ System.out.println("Are stacks equal: " + ItemStack.areItemStacksEqual(itemstack, ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound())))); NBTTagCompound tag = itemstack.writeToNBT(new NBTTagCompound()); System.out.println("Has tag: " + tag.hasKey("tag")); System.out.println("Has ctd: " + tag.getCompoundTag("tag").hasKey("compressedtooldata")); System.out.println("Has sword tag: " + tag.getCompoundTag("tag").getCompoundTag("compressedtooldata").hasKey("sword")); System.out.println("Sword nbt: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword"))); System.out.println("Sword for meta: " + getToolFromMeta(itemstack, 1)); System.out.println("Sword name: " + ItemStack.loadItemStackFromNBT(itemstack.writeToNBT(new NBTTagCompound()).getCompoundTag("tag").getCompoundTag("compressedtooldata").getCompoundTag("sword")).getDisplayName()); return itemstack; } Output: [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:671]: Are stacks equal: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:673]: Has tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:674]: Has ctd: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:675]: Has sword tag: true [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:676]: Sword nbt: null [19:51:52] [server thread/INFO] [sTDOUT]: [code.elix_x.mods.toolscompressor.items.ItemCompressedTools:setItems:677]: Sword for meta: null [19:51:52] [server thread/ERROR]: Encountered an unexpected exception net.minecraft.util.ReportedException: Exception while updating neighbours at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:198) ~[NetworkSystem.class:?] at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) ~[MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) ~[MinecraftServer.class:?] at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) ~[integratedServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) [MinecraftServer$2.class:?] Caused by: java.lang.NullPointerException at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.setItems(ItemCompressedTools.java:678) ~[itemCompressedTools.class:?] at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.createNewToolAndSetItems(ItemCompressedTools.java:653) ~[itemCompressedTools.class:?] at code.elix_x.mods.toolscompressor.tileentities.TileEntityToolsCompressor.start(TileEntityToolsCompressor.java:158) ~[TileEntityToolsCompressor.class:?] at code.elix_x.mods.toolscompressor.blocks.ToolsCompressor.onNeighborBlockChange(ToolsCompressor.java:96) ~[ToolsCompressor.class:?] at net.minecraft.world.World.notifyBlockOfNeighborChange(World.java:787) ~[World.class:?] at net.minecraft.world.World.notifyBlocksOfNeighborChange(World.java:737) ~[World.class:?] at net.minecraft.world.World.notifyBlockChange(World.java:697) ~[World.class:?] at net.minecraft.world.World.setBlockMetadataWithNotify(World.java:628) ~[World.class:?] at net.minecraft.block.BlockButton.onBlockActivated(BlockButton.java:248) ~[blockButton.class:?] at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:409) ~[itemInWorldManager.class:?] at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) ~[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:241) ~[NetworkManager.class:?] at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) ~[NetworkSystem.class:?] ... 5 more [19:51:52] [server thread/ERROR]: This crash report has been saved to: C:\my\mcmodding\mods\toolscompressor\eclipse\.\crash-reports\crash-2015-02-05_19.51.52-server.txt [19:51:52] [server thread/INFO]: Stopping server [19:51:52] [server thread/INFO]: Saving players [19:51:52] [Client thread/INFO] [sTDOUT]: [net.minecraft.client.Minecraft:displayCrashReport:388]: ---- Minecraft Crash Report ---- // I'm sorry, Dave. Time: 05.02.15 19:51 Description: Exception while updating neighbours java.lang.NullPointerException: Exception while updating neighbours at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.setItems(ItemCompressedTools.java:678) at code.elix_x.mods.toolscompressor.items.ItemCompressedTools.createNewToolAndSetItems(ItemCompressedTools.java:653) at code.elix_x.mods.toolscompressor.tileentities.TileEntityToolsCompressor.start(TileEntityToolsCompressor.java:158) at code.elix_x.mods.toolscompressor.blocks.ToolsCompressor.onNeighborBlockChange(ToolsCompressor.java:96) at net.minecraft.world.World.notifyBlockOfNeighborChange(World.java:787) at net.minecraft.world.World.notifyBlocksOfNeighborChange(World.java:737) at net.minecraft.world.World.notifyBlockChange(World.java:697) at net.minecraft.world.World.setBlockMetadataWithNotify(World.java:628) at net.minecraft.block.BlockButton.onBlockActivated(BlockButton.java:248) at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:409) at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241) at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) ... As you can see, or some reasons transmited ItemStack somehow changed his NBT in setItems? WHY?? HOW?? Can you help me please? Check out my mods: BTAM Armor sets Avoid Exploding Creepers Tools compressor Anti Id Conflict Key bindings overhaul Colourfull blocks Invisi Zones
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