There is no data holder converter registered to convert from a class net.kyori.adventure.nbt.api.BinaryTagHolderImpl instance to a interface net.kyori.adventure.text.serializer.gson.GsonDataComponentValue (on field minecraft:lore)

[that-apex]

GsonComponentSerializer will fail to serialize an ItemStack that has components if it was previously deserialized with minimessage.

val item = ItemStack(Material.DIAMOND)
item.editMeta { it.lore(listOf(Component.text("my lore"))) }
val baseComponent = Component.translatable(item).hoverEvent(item.asHoverEvent())

val json1 = GsonComponentSerializer.gson().serialize(baseComponent) // fine
println(json1)

try {
    val reserialized = MiniMessage.miniMessage().deserialize(MiniMessage.miniMessage().serialize(baseComponent))
    GsonComponentSerializer.gson().serialize(reserialized)
} catch (e: Exception) {
    e.printStackTrace()
}

results in

{"hoverEvent":{"action":"show_item","contents":{"id":"minecraft:diamond","count":1,"components":{"minecraft:lore":["\"my lore\""]}}},"translate":"item.minecraft.diamond"}
java.lang.IllegalArgumentException: There is no data holder converter registered to convert from a class net.kyori.adventure.nbt.api.BinaryTagHolderImpl instance to a interface net.kyori.adventure.text.serializer.gson.GsonDataComponentValue (on field minecraft:lore)
	at net.kyori.adventure.text.event.DataComponentValueConverterRegistry.convert(DataComponentValueConverterRegistry.java:90)
	at net.kyori.adventure.text.event.HoverEvent$ShowItem.dataComponentsAs(HoverEvent.java:623)
	at net.kyori.adventure.text.serializer.gson.ShowItemSerializer.write(ShowItemSerializer.java:139)
	at net.kyori.adventure.text.serializer.gson.ShowItemSerializer.write(ShowItemSerializer.java:49)
	at com.google.gson.TypeAdapter$1.write(TypeAdapter.java:196)
	at com.google.gson.Gson.toJson(Gson.java:842)
	at net.kyori.adventure.text.serializer.gson.StyleSerializer.write(StyleSerializer.java:296)
	at net.kyori.adventure.text.serializer.gson.StyleSerializer.write(StyleSerializer.java:62)
	at com.google.gson.TypeAdapter$1.write(TypeAdapter.java:196)
	at com.google.gson.Gson.toJson(Gson.java:842)
	at com.google.gson.Gson.toJsonTree(Gson.java:712)
	at net.kyori.adventure.text.serializer.gson.ComponentSerializerImpl.write(ComponentSerializerImpl.java:252)
	at net.kyori.adventure.text.serializer.gson.ComponentSerializerImpl.write(ComponentSerializerImpl.java:77)
	at com.google.gson.TypeAdapter$1.write(TypeAdapter.java:196)
	at com.google.gson.Gson.toJson(Gson.java:842)
	at com.google.gson.Gson.toJson(Gson.java:812)
	at com.google.gson.Gson.toJson(Gson.java:759)
	at com.google.gson.Gson.toJson(Gson.java:736)
	at net.kyori.adventure.text.serializer.gson.GsonComponentSerializerImpl.serialize(GsonComponentSerializerImpl.java:104)
	at net.kyori.adventure.text.serializer.gson.GsonComponentSerializerImpl.serialize(GsonComponentSerializerImpl.java:41)