Aligned Kotlin, Ktor, and Coroutines versions with those used in IntelliJ IDEA to ensure compatibility

Author: IKupriyanov-HORIS

build.gradle.kts

@@ -5,7 +5,10 @@
 
 import org.gradle.internal.os.OperatingSystem
 import org.gradle.jvm.tasks.Jar
-import org.jetbrains.kotlin.gradle.dsl.*
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.dsl.KotlinCommonCompilerOptions
+import org.jetbrains.kotlin.gradle.dsl.KotlinJvmProjectExtension
+import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
 import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 import java.io.FileNotFoundException
 import java.util.*
@@ -373,10 +376,15 @@ subprojects {
         freeCompilerArgs.addAll(
             // Suppress expect/actual classes are in Beta warning.
             "-Xexpect-actual-classes",
+
             // Non-public primary constructor is exposed via the generated 'copy()' method of the 'data' class.
-            "-Xconsistent-data-class-copy-visibility",
+            // Kotlin 2.0 feature.
+            //"-Xconsistent-data-class-copy-visibility",
+
             // Enable all warnings as errors.
-            "-Werror"
+            // Disabled because even with the Suppress("unused") the warnings may still happen:
+            // (https://github.com/JetBrains/lets-plot/blob/f5af69befdd2fa963672d3b1d9992f3635f64840/plot-base/src/commonMain/kotlin/org/jetbrains/letsPlot/core/interact/mouse/MouseDragInteraction.kt#L70)
+            //"-Werror"
         )
     }
     plugins.withId("org.jetbrains.kotlin.multiplatform") {
@@ -391,8 +399,18 @@ subprojects {
         }
     }
 
+    // Koltin 2.0
+    //plugins.withId("org.jetbrains.kotlin.jvm") {
+    //    extensions.configure<KotlinJvmExtension> {
+    //        compilerOptions {
+    //            configCompilerWarnings()
+    //            jvmTarget.set(JvmTarget.JVM_1_8)
+    //        }
+    //    }
+    //}
+
     plugins.withId("org.jetbrains.kotlin.jvm") {
-        extensions.configure<KotlinJvmExtension> {
+        extensions.configure<KotlinJvmProjectExtension> {
             compilerOptions {
                 configCompilerWarnings()
                 jvmTarget.set(JvmTarget.JVM_1_8)

demo/common-livemap/build.gradle.kts

@@ -7,6 +7,8 @@ plugins {
     kotlin("multiplatform")
 }
 
+val ktorVersion = project.extra["ktor_version"] as String
+
 kotlin {
     jvm()
     js {
@@ -21,6 +23,7 @@ kotlin {
         commonMain {
             dependencies {
                 implementation(kotlin("stdlib-common"))
+                implementation("io.ktor:ktor-client-websockets:${ktorVersion}")
 
                 implementation(project(":commons"))
                 implementation(project(":datamodel"))
@@ -34,5 +37,12 @@ kotlin {
                 implementation(project(":demo-and-test-shared"))
             }
         }
+
+        jsMain {
+            dependencies {
+                implementation("io.ktor:ktor-client-js:${ktorVersion}")
+                implementation("io.ktor:ktor-client-websockets-js:${ktorVersion}")
+            }
+        }
     }
 }

gis/src/commonMain/kotlin/org/jetbrains/letsPlot/gis/tileprotocol/http/HttpTileTransport.kt

@@ -21,7 +21,7 @@ class HttpTileTransport {
 
         myClient.launch {
             try {
-                val response = myClient.get(url).readRawBytes()
+                val response = myClient.get(url).readBytes()
                 async.success(response)
             } catch (c: ResponseException) {
                 async.failure(Exception(c.response.status.toString()))

gradle.properties

@@ -20,7 +20,7 @@ kotlin.jvm.target.validation.mode=error
 kotlin.suppressGradlePluginWarnings=IncorrectCompileOnlyDependencyWarning
 
 # Versions
-kotlin_version=2.1.0
+kotlin_version=1.9.25
 kotlinLogging_version=2.0.5
 slf4j_version=1.7.29
 assertj_version=3.26.3
@@ -32,10 +32,10 @@ mockk_version=1.9.3
 # ktor: 2.3.13  (https://github.com/JetBrains/intellij-community/blob/master/.idea/libraries/ktor_client.xml)
 # kotlinx-coroutines: 1.8.0-intellij-11 (https://github.com/JetBrains/intellij-community/blob/master/.idea/libraries/kotlinx_coroutines_core.xml)
 # kotlinx-html: 0.11.0 (https://github.com/JetBrains/intellij-community/blob/master/.idea/libraries/kotlinx_html_jvm.xml)
-ktor_version=3.0.3
+ktor_version=2.3.13
 # ktor 3.0.3 depends on kotlinx-coroutines :1.9.0
-kotlinx_coroutines_version=1.9.0
-kotlinx_html_version=0.7.3
+kotlinx_coroutines_version=1.8.0
+kotlinx_html_version=0.11.0
 
 # IDEA platform Batik: 1.16.0-35 (https://jetbrains.team/p/ij/repositories/ultimate/files/master/.idea/libraries/batik_transcoder.xml)
 batik_version=1.17