CompoundTag bug.

[iZeaoGamer]

Issue description

So, my server somewhat lags upon certain items. And sometimes causes a player to get kicked from the server for flying when they wern't even flying. This is the error I'm getting at the same time:

TypeError: "Return value of pocketmine\nbt\tag\CompoundTag::key() must be of the type string or null, integer returned" (EXCEPTION) in "vendor/pocketmine/nbt/src/tag/CompoundTag" at line 474
04.09 10:09:52 [Server] Server thread/DEBUG #0 vendor/pocketmine/nbt/src/tag/CompoundTag(493): pocketmine\nbt\tag\CompoundTag->key()
04.09 10:09:52 [Server] Server thread/DEBUG #1 vendor/pocketmine/nbt/src/tag/NamedTag(106): pocketmine\nbt\tag\CompoundTag->equalsValue(pocketmine\nbt\tag\CompoundTag object)
04.09 10:09:52 [Server] Server thread/DEBUG #2 src/pocketmine/item/Item(835): pocketmine\nbt\tag\NamedTag->equals(pocketmine\nbt\tag\CompoundTag object)
04.09 10:09:52 [Server] Server thread/DEBUG #3 src/pocketmine/Player(2640): pocketmine\item\Item->equals(pocketmine\item\ItemBlock object)
04.09 10:09:52 [Server] Server thread/DEBUG #4 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(136): pocketmine\Player->handleMobEquipment(pocketmine\network\mcpe\protocol\MobEquipmentPacket object)
04.09 10:09:52 [Server] Server thread/DEBUG #5 src/pocketmine/network/mcpe/protocol/MobEquipmentPacket(63): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleMobEquipment(pocketmine\network\mcpe\protocol\MobEquipmentPacket object)
04.09 10:09:52 [Server] Server thread/DEBUG #6 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(92): pocketmine\network\mcpe\protocol\MobEquipmentPacket->handle(pocketmine\network\mcpe\PlayerNetworkSessionAdapter object)
04.09 10:09:52 [Server] Server thread/DEBUG #7 src/pocketmine/network/mcpe/protocol/BatchPacket(114): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(pocketmine\network\mcpe\protocol\MobEquipmentPacket object)
04.09 10:09:52 [Server] Server thread/DEBUG #8 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(92): pocketmine\network\mcpe\protocol\BatchPacket->handle(pocketmine\network\mcpe\PlayerNetworkSessionAdapter object)
04.09 10:09:52 [Server] Server thread/DEBUG #9 src/pocketmine/Player(3056): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(pocketmine\network\mcpe\protocol\BatchPacket object)
04.09 10:09:52 [Server] Server thread/DEBUG #10 src/pocketmine/network/mcpe/RakLibInterface(162): pocketmine\Player->handleDataPacket(pocketmine\network\mcpe\protocol\BatchPacket object)
04.09 10:09:52 [Server] Server thread/DEBUG #11 vendor/pocketmine/raklib/src/server/ServerHandler(98): pocketmine\network\mcpe\RakLibInterface->handleEncapsulated(string 82.38.148.87 60663, raklib\protocol\EncapsulatedPacket object, integer 0)
04.09 10:09:52 [Server] Server thread/DEBUG #12 src/pocketmine/network/mcpe/RakLibInterface(103): raklib\server\ServerHandler->handlePacket()
04.09 10:09:52 [Server] Server thread/DEBUG #13 src/pocketmine/network/Network(94): pocketmine\network\mcpe\RakLibInterface->process()
04.09 10:09:52 [Server] Server thread/DEBUG #14 src/pocketmine/network/mcpe/RakLibInterface(80): pocketmine\network\Network->processInterface(pocketmine\network\mcpe\RakLibInterface object)
04.09 10:09:52 [Server] Server thread/DEBUG #15 vendor/pocketmine/snooze/src/SleeperHandler(120): pocketmine\network\mcpe\RakLibInterface->pocketmine\network\mcpe\{closure}()
04.09 10:09:52 [Server] Server thread/DEBUG #16 vendor/pocketmine/snooze/src/SleeperHandler(82): pocketmine\snooze\SleeperHandler->processNotifications()
04.09 10:09:52 [Server] Server thread/DEBUG #17 src/pocketmine/Server(2259): pocketmine\snooze\SleeperHandler->sleepUntil(double 1536055792.0863)
04.09 10:09:52 [Server] Server thread/DEBUG #18 src/pocketmine/Server(2134): pocketmine\Server->tickProcessor()
04.09 10:09:52 [Server] Server thread/DEBUG #19 src/pocketmine/Server(1700): pocketmine\Server->start()
04.09 10:09:52 [Server] Server thread/DEBUG #20 src/pocketmine/PocketMine(243): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string /, string /plugins/)
04.09 10:09:52 [Server] Server thread/DEBUG #21 /custom-php7.2.phar(1): require(string phar:///custom-php7.2.phar/src/pocketmine/PocketMine.php)
04.09 10:09:52 [Server] RakLibServer thread/NOTICE Blocked 82.38.148.87 for 5 seconds
04.09 10:09:57 [Server] Server thread/CRITICAL TypeError: "Return value of pocketmine\nbt\tag\CompoundTag::key() must be of the type string or null, integer returned" (EXCEPTION) in "vendor/pocketmine/nbt/src/tag/CompoundTag" at line 474
04.09 10:09:57 [Server] Server thread/DEBUG #0 vendor/pocketmine/nbt/src/tag/CompoundTag(493): pocketmine\nbt\tag\CompoundTag->key()
04.09 10:09:57 [Server] Server thread/DEBUG #1 vendor/pocketmine/nbt/src/tag/NamedTag(106): pocketmine\nbt\tag\CompoundTag->equalsValue(pocketmine\nbt\tag\CompoundTag object)
04.09 10:09:57 [Server] Server thread/DEBUG #2 src/pocketmine/item/Item(835): pocketmine\nbt\tag\NamedTag->equals(pocketmine\nbt\tag\CompoundTag object)
04.09 10:09:57 [Server] Server thread/DEBUG #3 src/pocketmine/Player(2640): pocketmine\item\Item->equals(pocketmine\item\ItemBlock object)
04.09 10:09:57 [Server] Server thread/DEBUG #4 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(136): pocketmine\Player->handleMobEquipment(pocketmine\network\mcpe\protocol\MobEquipmentPacket object)
04.09 10:09:57 [Server] Server thread/DEBUG #5 src/pocketmine/network/mcpe/protocol/MobEquipmentPacket(63): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleMobEquipment(pocketmine\network\mcpe\protocol\MobEquipmentPacket object)
04.09 10:09:57 [Server] Server thread/DEBUG #6 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(92): pocketmine\network\mcpe\protocol\MobEquipmentPacket->handle(pocketmine\network\mcpe\PlayerNetworkSessionAdapter object)
04.09 10:09:57 [Server] Server thread/DEBUG #7 src/pocketmine/network/mcpe/protocol/BatchPacket(114): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(pocketmine\network\mcpe\protocol\MobEquipmentPacket object)
04.09 10:09:57 [Server] Server thread/DEBUG #8 src/pocketmine/network/mcpe/PlayerNetworkSessionAdapter(92): pocketmine\network\mcpe\protocol\BatchPacket->handle(pocketmine\network\mcpe\PlayerNetworkSessionAdapter object)
04.09 10:09:57 [Server] Server thread/DEBUG #9 src/pocketmine/Player(3056): pocketmine\network\mcpe\PlayerNetworkSessionAdapter->handleDataPacket(pocketmine\network\mcpe\protocol\BatchPacket object)
04.09 10:09:57 [Server] Server thread/DEBUG #10 src/pocketmine/network/mcpe/RakLibInterface(162): pocketmine\Player->handleDataPacket(pocketmine\network\mcpe\protocol\BatchPacket object)
04.09 10:09:57 [Server] Server thread/DEBUG #11 vendor/pocketmine/raklib/src/server/ServerHandler(98): pocketmine\network\mcpe\RakLibInterface->handleEncapsulated(string 82.38.148.87 60663, raklib\protocol\EncapsulatedPacket object, integer 0)
04.09 10:09:57 [Server] Server thread/DEBUG #12 src/pocketmine/network/mcpe/RakLibInterface(103): raklib\server\ServerHandler->handlePacket()
04.09 10:09:57 [Server] Server thread/DEBUG #13 src/pocketmine/network/Network(94): pocketmine\network\mcpe\RakLibInterface->process()
04.09 10:09:57 [Server] Server thread/DEBUG #14 src/pocketmine/network/mcpe/RakLibInterface(80): pocketmine\network\Network->processInterface(pocketmine\network\mcpe\RakLibInterface object)
04.09 10:09:57 [Server] Server thread/DEBUG #15 vendor/pocketmine/snooze/src/SleeperHandler(120): pocketmine\network\mcpe\RakLibInterface->pocketmine\network\mcpe\{closure}()
04.09 10:09:57 [Server] Server thread/DEBUG #16 vendor/pocketmine/snooze/src/SleeperHandler(82): pocketmine\snooze\SleeperHandler->processNotifications()
04.09 10:09:57 [Server] Server thread/DEBUG #17 src/pocketmine/Server(2259): pocketmine\snooze\SleeperHandler->sleepUntil(double 1536055797.5863)
04.09 10:09:57 [Server] Server thread/DEBUG #18 src/pocketmine/Server(2134): pocketmine\Server->tickProcessor()
04.09 10:09:57 [Server] Server thread/DEBUG #19 src/pocketmine/Server(1700): pocketmine\Server->start()
04.09 10:09:57 [Server] Server thread/DEBUG #20 src/pocketmine/PocketMine(243): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string /, string /plugins/)
04.09 10:09:57 [Server] Server thread/DEBUG #21 /custom-php7.2.phar(1): require(string phar:///custom-php7.2.phar/src/pocketmine/PocketMine.php)

• Expected result: What were you expecting to happen? For the server NOT TO lag, and be able to not get kicked for flying.
• Actual result: What actually happened? The server kicks the player for flying, and items lag. (I've tried this on my second server with the same plugins, and that server seems to be fine), so not sure if it's the host, or the server.

  Steps to reproduce the issue

  1. ... Place an item (MobSpawner)
  2. ... After a couple of seconds, it lags back, and despawns.
  3. Keep jump running, and that kicks you for flying (As if the server lagged), but on my other server, it works fine).

OS and versions

• PocketMine-MP:
• PHP: 7.2
• Server OS: PocketMine-MP 3.2.0 for Minecraft: Bedrock Edition v1.6.0 (protocol version 282)
• Game version: PE/Win10 (delete as appropriate)

Plugins

• Test on a clean server without plugins: is the issue reproducible without any plugins loaded? Yes. If the issue is not reproducible without plugins:

• Have you asked for help on our forums before creating an issue?

• Can you provide sample, minimal reproducing code for the issue? If so, paste it in the bottom section

• Paste your list of plugins here (use the 'plugins' command in PocketMine-MP) I have 0 plugins to test this issue out.

  Crashdump, backtrace or other files

• Do not paste crashdumps into an issue - please use our Crash Archive at https://crash.pmmp.io for submitting crash reports to not spam the issue tracker. Add links to your reports in the Crash Archive here.

• Please use gist or anything else to add other files and add links here

• ...

[dktapps]

Interesting. I suspect this is to do with PHP array key casting behaviour.

I'm going to close this since it's on the wrong repo. Please open a new issue on the NBT repository.

[iZeaoGamer]

Okay, I have opened a new issue in the NBT repository. Please check it when you can, thanks.