Fix Rider build

Author: ulrichb

.github/workflows/build.yml

@@ -19,6 +19,11 @@ jobs:
       with:
         submodules: true
 
+    - uses: actions/setup-java@v5
+      with:
+        distribution: temurin
+        java-version: 25
+
     # - uses: actions/cache@v4
     #   with:
     #     path: ~/.nuget/packages

Src/RiderPlugin/build.gradle.kts

@@ -1,8 +1,8 @@
 plugins {
     id("java")
     alias(libs.plugins.kotlinJvm)
-    id("org.jetbrains.intellij.platform") version "2.16.0"  // https://github.com/JetBrains/intellij-platform-gradle-plugin/releases
-    id("me.filippov.gradle.jvm.wrapper") version "0.16.0"   // https://plugins.gradle.org/plugin/me.filippov.gradle.jvm.wrapper
+    id("org.jetbrains.intellij.platform") version "2.18.1"  // https://github.com/JetBrains/intellij-platform-gradle-plugin/releases
+    id("me.filippov.gradle.jvm.wrapper") version "0.15.0"   // https://plugins.gradle.org/plugin/me.filippov.gradle.jvm.wrapper
 }
 
 val ResharperPluginProjectName: String by project
@@ -23,12 +23,6 @@ repositories {
     }
 }
 
-tasks.wrapper {
-    gradleVersion = "8.8"
-    distributionType = Wrapper.DistributionType.ALL
-    distributionUrl = "https://cache-redirector.jetbrains.com/services.gradle.org/distributions/gradle-${gradleVersion}-all.zip"
-}
-
 version = extra["PluginVersion"] as String
 
 tasks.processResources {
@@ -49,9 +43,19 @@ dependencies {
             useInstaller = false
         }
         jetbrainsRuntime()
+
+        // Required for SimpleOptionsPage and other Rider frontend/.NET bridge APIs (split out in 2026.2):
+        bundledModule("intellij.rider.rdclient.dotnet")
+
+        // Required for com.jetbrains.rdclient.actions.base.* (Frontend/BackendActionTrait), supertypes of RiderUnitTestAnActionBase (split out in 2026.2):
+        bundledModule("intellij.rd.client")
     }
 }
 
+intellijPlatform {
+    buildSearchableOptions = false
+}
+
 tasks.runIde {
     // Match Rider's default heap size of 1.5Gb (default for runIde is 512Mb)
     maxHeapSize = "1500m"

Src/RiderPlugin/gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
-kotlin = "2.3.20" # https://plugins.jetbrains.com/docs/intellij/using-kotlin.html#kotlin-standard-library
-# rdGen = "2026.1.3" # https://github.com/JetBrains/rd/releases
+kotlin = "2.4.0" # https://plugins.jetbrains.com/docs/intellij/using-kotlin.html#kotlin-standard-library
+# rdGen = "2026.2.5" # https://github.com/JetBrains/rd/releases
 
 [libraries]
 kotlinStdLib = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib", version.ref = "kotlin" }