Problem of "ItemStringReader" and "insertStack()"

[sky880319]

Description

I have a problem with version 1.21 (server) when parsing a string to ItemStack and inserting the item into the player slot.
Here is my code:

StringReader reader = new StringReader(this.itemString);
ItemStringReader itemStringReader = new ItemStringReader(BuiltinRegistries.createWrapperLookup());
ItemResult itemResult = itemStringReader.consume(reader);
ItemStack itemStack = new ItemStack(itemResult.item(), 1);
itemStack.applyUnvalidatedChanges(itemResult.components());
serverPlayerEntity.getInventory().insertStack(itemStack);

If this.itemString = "minecraft:enchanted_book[minecraft:stored_enchantments={mending:1}]", an exception will occurs after executed serverPlayerEntity.getInventory().insertStack(), and player will get a disconnect message as follows: Internal Exception: io.netty.handler.codec.EncoderException: Failed to encode packet 'clientbound/minecraft:container_set_slot'.

But this.itemString = "minecraft:potion[minecraft:potion_contents={potion:healing}]" can work.

I had check server log. and I got this call stack:

at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[netty-transport-4.1.97.Final.jar:?]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[netty-transport-4.1.97.Final.jar:?]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:851) ~[netty-transport-4.1.97.Final.jar:?]
at io.netty.channel.DefaultChannelPipeline.write(DefaultChannelPipeline.java:1010) ~[netty-transport-4.1.97.Final.jar:?]
at io.netty.channel.AbstractChannel.write(AbstractChannel.java:296) ~[netty-transport-4.1.97.Final.jar:?]
at net.minecraft.class_2535.method_36942(class_2535.java:350) ~[server-intermediary.jar:?]
at net.minecraft.class_2535.method_52917(class_2535.java:345) ~[server-intermediary.jar:?]
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) ~[netty-common-4.1.97.Final.jar:?]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) ~[netty-common-4.1.97.Final.jar:?]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[netty-common-4.1.97.Final.jar:?]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569) ~[netty-transport-4.1.97.Final.jar:?]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.97.Final.jar:?]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.97.Final.jar:?]
at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]
**Caused by: java.lang.IllegalArgumentException: Can't find id for 'Reference{ResourceKey[minecraft:enchantment / minecraft:unbreaking]=Enchantment Unbreaking}' in map net.minecraft.class_2378$1@566b9d32**
at net.minecraft.class_2359.method_56158(class_2359.java:27) ~[server-intermediary.jar:?]
at net.minecraft.class_9135$16.method_56423(class_9135.java:484) ~[server-intermediary.jar:?]
at net.minecraft.class_9135$16.encode(class_9135.java:471) ~[server-intermediary.jar:?]
at net.minecraft.class_9135$13.method_59793(class_9135.java:406) ~[server-intermediary.jar:?]
at it.unimi.dsi.fastutil.objects.Object2IntMap.lambda$forEach$0(Object2IntMap.java:245) ~[fastutil-8.5.12.jar:?]
at it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap$MapEntrySet.fastForEach(Object2IntOpenHashMap.java:1078) ~[fastutil-8.5.12.jar:?]
at it.unimi.dsi.fastutil.objects.Object2IntMap.forEach(Object2IntMap.java:247) ~[fastutil-8.5.12.jar:?]
at net.minecraft.class_9135$13.method_56418(class_9135.java:405) ~[server-intermediary.jar:?]
at net.minecraft.class_9135$13.encode(class_9135.java:401) ~[server-intermediary.jar:?]
at net.minecraft.class_9139$12.encode(class_9139.java:156) ~[server-intermediary.jar:?]
at net.minecraft.class_9326$1.method_57851(class_9326.java:123) ~[server-intermediary.jar:?]
at net.minecraft.class_9326$1.method_57850(class_9326.java:109) ~[server-intermediary.jar:?]
at net.minecraft.class_9326$1.encode(class_9326.java:59) ~[server-intermediary.jar:?]
at net.minecraft.class_1799$1.method_56100(class_1799.java:156) ~[server-intermediary.jar:?]
at net.minecraft.class_1799$1.encode(class_1799.java:132) ~[server-intermediary.jar:?]
at net.minecraft.class_2945$class_7834.method_46361(class_2945.java:144) ~[server-intermediary.jar:?]
at net.minecraft.class_2739.method_46615(class_2739.java:26) ~[server-intermediary.jar:?]
at net.minecraft.class_2739.method_55926(class_2739.java:44) ~[server-intermediary.jar:?]
at net.minecraft.class_9139$6.encode(class_9139.java:42) ~[server-intermediary.jar:?]
at net.minecraft.class_9139$9.method_56442(class_9139.java:97) ~[server-intermediary.jar:?]
at net.minecraft.class_9139$9.encode(class_9139.java:87) ~[server-intermediary.jar:?]
at net.minecraft.class_9136.method_56426(class_9136.java:53) ~[server-intermediary.jar:?]
... 31 more

I used the following code to do the same work, that work fine in version 1.20.6:

StringReader reader = new StringReader(this.itemString);
ItemStringReader itemStringReader = new ItemStringReader(BuiltinRegistries.createWrapperLookup());
ItemResult itemResult = itemStringReader.consume(reader);
ItemStack itemStack = new ItemStack(itemResult.item(), 1);
itemStack.applyComponentsFrom(itemResult.components());
serverPlayerEntity.getInventory().insertStack(itemStack);

Please give me some suggestion to fix this mistake, thanks a lot!!!