diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/defs/item/ArmorItemPrototype.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/defs/item/ArmorItemPrototype.kt
index f8545a45..cbc5a7df 100644
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/defs/item/ArmorItemPrototype.kt
+++ b/src/main/kotlin/ru/dbotthepony/kstarbound/defs/item/ArmorItemPrototype.kt
@@ -1,15 +1,10 @@
 package ru.dbotthepony.kstarbound.defs.item
 
 import com.google.common.collect.ImmutableList
-import ru.dbotthepony.kstarbound.Starbound
 import ru.dbotthepony.kstarbound.defs.DirectAssetReference
 import ru.dbotthepony.kstarbound.defs.util.enrollMap
-import ru.dbotthepony.kstarbound.io.json.builder.BuilderAdapter
 import ru.dbotthepony.kstarbound.io.json.builder.JsonBuilder
 import ru.dbotthepony.kstarbound.io.json.builder.JsonIgnoreProperty
-import ru.dbotthepony.kstarbound.io.json.util.asJsonObject
-import ru.dbotthepony.kstarbound.io.json.util.asList
-import ru.dbotthepony.kstarbound.io.json.neverNull
 import ru.dbotthepony.kstarbound.util.NotNullVar
 
 @JsonBuilder
diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/LazyTypeProvider.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/LazyTypeProvider.kt
deleted file mode 100644
index 1b79210c..00000000
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/LazyTypeProvider.kt
+++ /dev/null
@@ -1,18 +0,0 @@
-package ru.dbotthepony.kstarbound.io.json.util
-
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonReader
-import com.google.gson.stream.JsonWriter
-import ru.dbotthepony.kstarbound.Starbound
-
-class LazyTypeProvider<T : Any?>(private val bound: Class<T>, private val resolver: (Class<T>) -> TypeAdapter<T> = Starbound::getTypeAdapter) : TypeAdapter<T>() {
-	private val resolved by lazy { resolver(bound) }
-
-	override fun write(out: JsonWriter, value: T) {
-		resolved.write(out, value)
-	}
-
-	override fun read(`in`: JsonReader): T {
-		return resolved.read(`in`)
-	}
-}
diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/ListAdapter.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/ListAdapter.kt
deleted file mode 100644
index 248aa581..00000000
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/ListAdapter.kt
+++ /dev/null
@@ -1,51 +0,0 @@
-package ru.dbotthepony.kstarbound.io.json.util
-
-import com.google.common.collect.ImmutableList
-import com.google.gson.JsonSyntaxException
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonReader
-import com.google.gson.stream.JsonToken
-import com.google.gson.stream.JsonWriter
-
-fun <T : Any> TypeAdapter<T>.asList(valueTransformer: (T) -> T = { it }): TypeAdapter<List<T>> {
-	return ListAdapter(this, valueTransformer = valueTransformer)
-}
-
-class ListAdapter<T : Any>(val elementAdapter: TypeAdapter<T>, val valueTransformer: (T) -> T = { it }) : TypeAdapter<List<T>>() {
-	constructor(type: Class<T>, valueTransformer: (T) -> T = { it }) : this(LazyTypeProvider(type), valueTransformer = valueTransformer)
-
-	override fun write(out: JsonWriter, value: List<T>) {
-		if (value.size == 1) {
-			elementAdapter.write(out, value[0])
-			return
-		}
-
-		out.beginArray()
-
-		for (v in value) {
-			elementAdapter.write(out, v)
-		}
-
-		out.endArray()
-	}
-
-	override fun read(reader: JsonReader): List<T> {
-		if (reader.peek() != JsonToken.BEGIN_ARRAY) {
-			// не массив, возможно упрощение структуры "a": [value] -> "a": value
-			return ImmutableList.of(elementAdapter.read(reader) ?: throw JsonSyntaxException("List does not accept nulls"))
-		}
-
-		reader.beginArray()
-
-		val builder = ImmutableList.builder<T>()
-
-		while (reader.peek() != JsonToken.END_ARRAY) {
-			val readObject = elementAdapter.read(reader) ?: throw JsonSyntaxException("List does not accept nulls")
-			builder.add(valueTransformer(readObject))
-		}
-
-		reader.endArray()
-
-		return builder.build()
-	}
-}
diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/MapAdapter.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/MapAdapter.kt
deleted file mode 100644
index c6871fd8..00000000
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/MapAdapter.kt
+++ /dev/null
@@ -1,40 +0,0 @@
-package ru.dbotthepony.kstarbound.io.json.util
-
-import com.google.common.collect.ImmutableMap
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonReader
-import com.google.gson.stream.JsonToken
-import com.google.gson.stream.JsonWriter
-
-class MapAdapter<K, V>(val keyAdapter: TypeAdapter<K>, val valueAdapter: TypeAdapter<V>) : TypeAdapter<Map<K, V>>() {
-	constructor(keyType: Class<K>, valueType: Class<V>) : this(LazyTypeProvider(keyType), LazyTypeProvider(valueType))
-
-	override fun write(out: JsonWriter, value: Map<K, V>) {
-		out.beginArray()
-
-		for ((k, v) in value) {
-			out.beginArray()
-			keyAdapter.write(out, k)
-			valueAdapter.write(out, v)
-			out.endArray()
-		}
-
-		out.endArray()
-	}
-
-	override fun read(reader: JsonReader): Map<K, V> {
-		reader.beginArray()
-
-		val builder = ImmutableMap.builder<K, V>()
-
-		while (reader.peek() != JsonToken.END_ARRAY) {
-			reader.beginArray()
-			builder.put(keyAdapter.read(reader), valueAdapter.read(reader))
-			reader.endArray()
-		}
-
-		reader.endArray()
-
-		return builder.build()
-	}
-}
diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/String2ObjectAdapter.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/String2ObjectAdapter.kt
deleted file mode 100644
index 54914adc..00000000
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/io/json/util/String2ObjectAdapter.kt
+++ /dev/null
@@ -1,41 +0,0 @@
-package ru.dbotthepony.kstarbound.io.json.util
-
-import com.google.common.collect.ImmutableMap
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonReader
-import com.google.gson.stream.JsonToken
-import com.google.gson.stream.JsonWriter
-import ru.dbotthepony.kstarbound.Starbound
-
-fun <T> TypeAdapter<T>.asJsonObject(valueTransformer: (T) -> T = { it }): TypeAdapter<Map<String, T>> {
-	return String2ObjectAdapter(this, valueTransformer = valueTransformer)
-}
-
-class String2ObjectAdapter<T>(val adapter: TypeAdapter<T>, val valueTransformer: (T) -> T = { it }) : TypeAdapter<Map<String, T>>() {
-	constructor(type: Class<T>, valueTransformer: (T) -> T = { it }) : this(LazyTypeProvider(type), valueTransformer = valueTransformer)
-
-	override fun write(out: JsonWriter, value: Map<String, T>) {
-		out.beginObject()
-
-		for ((k, v) in value) {
-			out.name(k)
-			adapter.write(out, v)
-		}
-
-		out.endObject()
-	}
-
-	override fun read(reader: JsonReader): Map<String, T> {
-		val builder = ImmutableMap.builder<String, T>()
-
-		reader.beginObject()
-
-		while (reader.peek() != JsonToken.END_OBJECT) {
-			builder.put(Starbound.STRING_INTERNER.intern(reader.nextName()), valueTransformer(adapter.read(reader)))
-		}
-
-		reader.endObject()
-
-		return builder.build()
-	}
-}