[kotlin-client][multiplatform] update dependency versions (#17180)

samples/client/petstore/kotlin-default-values-multiplatform/build.gradle.kts

@@ -1,17 +1,17 @@
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget
 
 plugins {
-    kotlin("multiplatform") version "1.7.21" // kotlin_version
-    kotlin("plugin.serialization") version "1.7.21" // kotlin_version
+    kotlin("multiplatform") version "1.9.20" // kotlin_version
+    kotlin("plugin.serialization") version "1.9.20" // kotlin_version
 }
 
 group = "org.openapitools"
 version = "1.0.0"
 
-val kotlin_version = "1.7.21"
-val coroutines_version = "1.6.4"
-val serialization_version = "1.3.3"
-val ktor_version = "2.2.3"
+val kotlin_version = "1.9.20"
+val coroutines_version = "1.7.3"
+val serialization_version = "1.6.1"
+val ktor_version = "2.3.6"
 
 repositories {
     mavenCentral()
@@ -19,15 +19,16 @@ repositories {
 
 kotlin {
     jvm()
-    ios { binaries { framework { freeCompilerArgs += "-Xobjc-generics" } } }
-    iosSimulatorArm64 { binaries { framework { freeCompilerArgs += "-Xobjc-generics" } } }
+    iosX64()
+    iosArm64()
+    iosSimulatorArm64()
     js {
         browser()
         nodejs()
     }
 
     sourceSets {
-        val commonMain by getting {
+        commonMain {
             dependencies {
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version")
                 implementation("org.jetbrains.kotlinx:kotlinx-serialization-core:$serialization_version")
@@ -37,53 +38,42 @@ kotlin {
                 api("io.ktor:ktor-client-content-negotiation:$ktor_version")
                 api("io.ktor:ktor-serialization-kotlinx-json:$ktor_version")
 
-                api("org.jetbrains.kotlinx:kotlinx-datetime:0.4.0")
+                api("org.jetbrains.kotlinx:kotlinx-datetime:0.4.1")
             }
         }
 
-        val commonTest by getting {
+        commonTest {
             dependencies {
                 implementation(kotlin("test"))
                 implementation("io.ktor:ktor-client-mock:$ktor_version")
             }
         }
 
-        val jvmMain by getting {
+        jvmMain {
             dependencies {
                 implementation(kotlin("stdlib-jdk7"))
                 implementation("io.ktor:ktor-client-cio-jvm:$ktor_version")
             }
         }
 
-        val jvmTest by getting {
+        jvmTest {
             dependencies {
                 implementation(kotlin("test-junit"))
             }
         }
 
-        val iosMain by getting {
+        iosMain {
             dependencies {
                 api("io.ktor:ktor-client-ios:$ktor_version")
             }
         }
 
-        val iosTest by getting
-
-        val iosSimulatorArm64Main by getting
-
-        val iosSimulatorArm64Test by getting
-
-        iosSimulatorArm64Main.dependsOn(iosMain)
-        iosSimulatorArm64Test.dependsOn(iosTest)
-
         val jsMain by getting {
             dependencies {
                 api("io.ktor:ktor-client-js:$ktor_version")
             }
         }
 
-        val jsTest by getting
-
         all {
             languageSettings.apply {
                 optIn("kotlin.Experimental")

samples/client/petstore/kotlin-default-values-multiplatform/src/commonMain/kotlin/org/openapitools/client/infrastructure/Base64ByteArray.kt

@@ -4,9 +4,8 @@ import kotlinx.serialization.*
 import kotlinx.serialization.descriptors.*
 import kotlinx.serialization.encoding.*
 
-@Serializable
+@Serializable(Base64ByteArray.Companion::class)
 class Base64ByteArray(val value: ByteArray) {
-    @Serializer(Base64ByteArray::class)
     companion object : KSerializer<Base64ByteArray> {
         override val descriptor = PrimitiveSerialDescriptor("Base64ByteArray", PrimitiveKind.STRING)
         override fun serialize(encoder: Encoder, obj: Base64ByteArray) = encoder.encodeString(obj.value.encodeBase64())

samples/client/petstore/kotlin-default-values-multiplatform/src/commonMain/kotlin/org/openapitools/client/infrastructure/Bytes.kt

@@ -82,6 +82,7 @@ private fun ByteReadPacket.encodeBase64(): String = buildString {
  *
  * Taken from https://github.com/ktorio/ktor/blob/424d1d2cfaa3281302c60af9500f738c8c2fc846/ktor-utils/common/src/io/ktor/util/Base64.kt
  */
+@Suppress("DEPRECATION")
 private fun ByteReadPacket.decodeBase64Bytes(): Input = buildPacket {
     val data = ByteArray(4)
 

samples/client/petstore/kotlin-default-values-multiplatform/src/commonMain/kotlin/org/openapitools/client/infrastructure/OctetByteArray.kt

@@ -4,9 +4,8 @@ import kotlinx.serialization.*
 import kotlinx.serialization.descriptors.*
 import kotlinx.serialization.encoding.*
 
-@Serializable
+@Serializable(OctetByteArray.Companion::class)
 class OctetByteArray(val value: ByteArray) {
-    @Serializer(OctetByteArray::class)
     companion object : KSerializer<OctetByteArray> {
         override val descriptor = PrimitiveSerialDescriptor("OctetByteArray", PrimitiveKind.STRING)
         override fun serialize(encoder: Encoder, obj: OctetByteArray) = encoder.encodeString(hex(obj.value))