Ignore NoClassDefFoundError when initializing builtins map for serial…

…izer() function.

Normally they should not occur, but in rare setups when runtime stdlib may be lower than 2.0, we may want to ignore errors about experimental classes.

Fixes #2803

core/commonMain/src/kotlinx/serialization/internal/Primitives.kt

@@ -15,38 +15,9 @@ import kotlin.reflect.*
 import kotlin.time.Duration
 import kotlin.uuid.*
 
-@OptIn(ExperimentalUnsignedTypes::class, ExperimentalUuidApi::class)
-private val BUILTIN_SERIALIZERS = mapOf(
-    String::class to String.serializer(),
-    Char::class to Char.serializer(),
-    CharArray::class to CharArraySerializer(),
-    Double::class to Double.serializer(),
-    DoubleArray::class to DoubleArraySerializer(),
-    Float::class to Float.serializer(),
-    FloatArray::class to FloatArraySerializer(),
-    Long::class to Long.serializer(),
-    LongArray::class to LongArraySerializer(),
-    ULong::class to ULong.serializer(),
-    ULongArray::class to ULongArraySerializer(),
-    Int::class to Int.serializer(),
-    IntArray::class to IntArraySerializer(),
-    UInt::class to UInt.serializer(),
-    UIntArray::class to UIntArraySerializer(),
-    Short::class to Short.serializer(),
-    ShortArray::class to ShortArraySerializer(),
-    UShort::class to UShort.serializer(),
-    UShortArray::class to UShortArraySerializer(),
-    Byte::class to Byte.serializer(),
-    ByteArray::class to ByteArraySerializer(),
-    UByte::class to UByte.serializer(),
-    UByteArray::class to UByteArraySerializer(),
-    Boolean::class to Boolean.serializer(),
-    BooleanArray::class to BooleanArraySerializer(),
-    Unit::class to Unit.serializer(),
-    Nothing::class to NothingSerializer(),
-    Duration::class to Duration.serializer(),
-    Uuid::class to Uuid.serializer()
-)
+private val BUILTIN_SERIALIZERS = initBuiltins()
+
+internal expect fun initBuiltins(): Map<KClass<*>, KSerializer<*>>
 
 internal class PrimitiveSerialDescriptor(
     override val serialName: String,

core/jsMain/src/kotlinx/serialization/internal/Platform.kt

@@ -5,7 +5,10 @@
 package kotlinx.serialization.internal
 
 import kotlinx.serialization.*
+import kotlinx.serialization.builtins.*
 import kotlin.reflect.*
+import kotlin.time.*
+import kotlin.uuid.*
 
 internal actual fun <T> Array<T>.getChecked(index: Int): T {
     if (index !in indices) throw IndexOutOfBoundsException("Index $index out of bounds $indices")
@@ -77,3 +80,36 @@ private val KClass<*>.isInterface: Boolean
         if (this === Nothing::class) return false
         return js.asDynamic().`$metadata$`?.kind == "interface"
     }
+
+@OptIn(ExperimentalUnsignedTypes::class, ExperimentalUuidApi::class, ExperimentalSerializationApi::class)
+internal actual fun initBuiltins(): Map<KClass<*>, KSerializer<*>> = mapOf(
+    String::class to String.serializer(),
+    Char::class to Char.serializer(),
+    CharArray::class to CharArraySerializer(),
+    Double::class to Double.serializer(),
+    DoubleArray::class to DoubleArraySerializer(),
+    Float::class to Float.serializer(),
+    FloatArray::class to FloatArraySerializer(),
+    Long::class to Long.serializer(),
+    LongArray::class to LongArraySerializer(),
+    ULong::class to ULong.serializer(),
+    ULongArray::class to ULongArraySerializer(),
+    Int::class to Int.serializer(),
+    IntArray::class to IntArraySerializer(),
+    UInt::class to UInt.serializer(),
+    UIntArray::class to UIntArraySerializer(),
+    Short::class to Short.serializer(),
+    ShortArray::class to ShortArraySerializer(),
+    UShort::class to UShort.serializer(),
+    UShortArray::class to UShortArraySerializer(),
+    Byte::class to Byte.serializer(),
+    ByteArray::class to ByteArraySerializer(),
+    UByte::class to UByte.serializer(),
+    UByteArray::class to UByteArraySerializer(),
+    Boolean::class to Boolean.serializer(),
+    BooleanArray::class to BooleanArraySerializer(),
+    Unit::class to Unit.serializer(),
+    Nothing::class to NothingSerializer(),
+    Duration::class to Duration.serializer(),
+    Uuid::class to Uuid.serializer()
+)

core/jvmMain/src/kotlinx/serialization/internal/Platform.kt

@@ -5,8 +5,11 @@
 package kotlinx.serialization.internal
 
 import kotlinx.serialization.*
+import kotlinx.serialization.builtins.*
 import java.lang.reflect.*
 import kotlin.reflect.*
+import kotlin.time.*
+import kotlin.uuid.*
 
 @Suppress("NOTHING_TO_INLINE")
 internal actual inline fun <T> Array<T>.getChecked(index: Int): T {
@@ -158,3 +161,53 @@ private fun <T : Any> Class<T>.findObjectSerializer(): KSerializer<T>? {
 }
 
 internal actual fun isReferenceArray(rootClass: KClass<Any>): Boolean = rootClass.java.isArray
+
+@OptIn(ExperimentalSerializationApi::class)
+internal actual fun initBuiltins(): Map<KClass<*>, KSerializer<*>> = buildMap {
+    // Standard classes are always present
+    put(String::class, String.serializer())
+    put(Char::class, Char.serializer())
+    put(CharArray::class, CharArraySerializer())
+    put(Double::class, Double.serializer())
+    put(DoubleArray::class, DoubleArraySerializer())
+    put(Float::class, Float.serializer())
+    put(FloatArray::class, FloatArraySerializer())
+    put(Long::class, Long.serializer())
+    put(LongArray::class, LongArraySerializer())
+    put(ULong::class, ULong.serializer())
+    put(Int::class, Int.serializer())
+    put(IntArray::class, IntArraySerializer())
+    put(UInt::class, UInt.serializer())
+    put(Short::class, Short.serializer())
+    put(ShortArray::class, ShortArraySerializer())
+    put(UShort::class, UShort.serializer())
+    put(Byte::class, Byte.serializer())
+    put(ByteArray::class, ByteArraySerializer())
+    put(UByte::class, UByte.serializer())
+    put(Boolean::class, Boolean.serializer())
+    put(BooleanArray::class, BooleanArraySerializer())
+    put(Unit::class, Unit.serializer())
+    put(Nothing::class, NothingSerializer())
+
+    // Duration is a stable class, but may be missing in very old stdlibs
+    loadSafe { put(Duration::class, Duration.serializer()) }
+
+    // Experimental types that may be missing
+    @OptIn(ExperimentalUnsignedTypes::class) run {
+        loadSafe { put(ULongArray::class, ULongArraySerializer()) }
+        loadSafe { put(UIntArray::class, UIntArraySerializer()) }
+        loadSafe { put(UShortArray::class, UShortArraySerializer()) }
+        loadSafe { put(UByteArray::class, UByteArraySerializer()) }
+    }
+    @OptIn(ExperimentalUuidApi::class)
+    loadSafe { put(Uuid::class, Uuid.serializer()) }
+}
+
+// Reference classes in [block] ignoring any exceptions related to class loading
+private inline fun loadSafe(block: () -> Unit) {
+    try {
+        block()
+    } catch (_: NoClassDefFoundError) {
+    } catch (_: ClassNotFoundException) {
+    }
+}

core/nativeMain/src/kotlinx/serialization/internal/Platform.kt

@@ -5,7 +5,10 @@
 package kotlinx.serialization.internal
 
 import kotlinx.serialization.*
+import kotlinx.serialization.builtins.*
 import kotlin.reflect.*
+import kotlin.time.*
+import kotlin.uuid.*
 
 @Suppress("NOTHING_TO_INLINE")
 internal actual inline fun <T> Array<T>.getChecked(index: Int): T {
@@ -71,3 +74,36 @@ internal actual fun <T : Any, E : T?> ArrayList<E>.toNativeArrayImpl(eClass: KCl
 private fun <T> arrayOfAnyNulls(size: Int): Array<T> = arrayOfNulls<Any>(size) as Array<T>
 
 internal actual fun isReferenceArray(rootClass: KClass<Any>): Boolean = rootClass == Array::class
+
+@OptIn(ExperimentalUnsignedTypes::class, ExperimentalUuidApi::class, ExperimentalSerializationApi::class)
+internal actual fun initBuiltins(): Map<KClass<*>, KSerializer<*>> = mapOf(
+    String::class to String.serializer(),
+    Char::class to Char.serializer(),
+    CharArray::class to CharArraySerializer(),
+    Double::class to Double.serializer(),
+    DoubleArray::class to DoubleArraySerializer(),
+    Float::class to Float.serializer(),
+    FloatArray::class to FloatArraySerializer(),
+    Long::class to Long.serializer(),
+    LongArray::class to LongArraySerializer(),
+    ULong::class to ULong.serializer(),
+    ULongArray::class to ULongArraySerializer(),
+    Int::class to Int.serializer(),
+    IntArray::class to IntArraySerializer(),
+    UInt::class to UInt.serializer(),
+    UIntArray::class to UIntArraySerializer(),
+    Short::class to Short.serializer(),
+    ShortArray::class to ShortArraySerializer(),
+    UShort::class to UShort.serializer(),
+    UShortArray::class to UShortArraySerializer(),
+    Byte::class to Byte.serializer(),
+    ByteArray::class to ByteArraySerializer(),
+    UByte::class to UByte.serializer(),
+    UByteArray::class to UByteArraySerializer(),
+    Boolean::class to Boolean.serializer(),
+    BooleanArray::class to BooleanArraySerializer(),
+    Unit::class to Unit.serializer(),
+    Nothing::class to NothingSerializer(),
+    Duration::class to Duration.serializer(),
+    Uuid::class to Uuid.serializer()
+)

core/wasmMain/src/kotlinx/serialization/internal/Platform.kt

@@ -5,7 +5,10 @@
 package kotlinx.serialization.internal
 
 import kotlinx.serialization.*
+import kotlinx.serialization.builtins.*
 import kotlin.reflect.*
+import kotlin.time.*
+import kotlin.uuid.*
 
 @Suppress("NOTHING_TO_INLINE")
 internal actual inline fun <T> Array<T>.getChecked(index: Int): T {
@@ -61,3 +64,36 @@ internal actual fun <T> createParametrizedCache(factory: (KClass<Any>, List<KTyp
 internal actual fun <T : Any, E : T?> ArrayList<E>.toNativeArrayImpl(eClass: KClass<T>): Array<E> = toTypedArray()
 
 internal actual fun isReferenceArray(rootClass: KClass<Any>): Boolean = rootClass == Array::class
+
+@OptIn(ExperimentalUnsignedTypes::class, ExperimentalUuidApi::class, ExperimentalSerializationApi::class)
+internal actual fun initBuiltins(): Map<KClass<*>, KSerializer<*>> = mapOf(
+    String::class to String.serializer(),
+    Char::class to Char.serializer(),
+    CharArray::class to CharArraySerializer(),
+    Double::class to Double.serializer(),
+    DoubleArray::class to DoubleArraySerializer(),
+    Float::class to Float.serializer(),
+    FloatArray::class to FloatArraySerializer(),
+    Long::class to Long.serializer(),
+    LongArray::class to LongArraySerializer(),
+    ULong::class to ULong.serializer(),
+    ULongArray::class to ULongArraySerializer(),
+    Int::class to Int.serializer(),
+    IntArray::class to IntArraySerializer(),
+    UInt::class to UInt.serializer(),
+    UIntArray::class to UIntArraySerializer(),
+    Short::class to Short.serializer(),
+    ShortArray::class to ShortArraySerializer(),
+    UShort::class to UShort.serializer(),
+    UShortArray::class to UShortArraySerializer(),
+    Byte::class to Byte.serializer(),
+    ByteArray::class to ByteArraySerializer(),
+    UByte::class to UByte.serializer(),
+    UByteArray::class to UByteArraySerializer(),
+    Boolean::class to Boolean.serializer(),
+    BooleanArray::class to BooleanArraySerializer(),
+    Unit::class to Unit.serializer(),
+    Nothing::class to NothingSerializer(),
+    Duration::class to Duration.serializer(),
+    Uuid::class to Uuid.serializer()
+)