Update to Kotlin 2.2

buildSrc/build.gradle

@@ -1,5 +1,6 @@
 plugins {
 	id "java-gradle-plugin"
+	id "groovy-gradle-plugin"
 	id "java"
 	id "groovy"
 }
@@ -76,6 +77,7 @@ dependencies {
 	implementation libs.com.github.spullara.mustache.java.compiler
 	implementation libs.io.spring.javaformat.spring.javaformat.gradle.plugin
 	implementation libs.io.spring.nohttp.nohttp.gradle
+	implementation libs.org.jetbrains.kotlin.kotlin.gradle.plugin
 	implementation (libs.net.sourceforge.htmlunit) {
 		exclude group: 'org.eclipse.jetty.websocket', module: 'websocket-client'
 	}

buildSrc/src/main/groovy/security-kotlin.gradle

@@ -0,0 +1,17 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    id 'kotlin'
+}
+
+project.plugins.withId("org.jetbrains.kotlin.jvm", (kotlinProject) -> {
+    project.tasks.withType(KotlinCompile).configureEach {
+        kotlinOptions {
+            languageVersion = '2.2'
+            apiVersion = '2.2'
+            freeCompilerArgs = ["-Xjsr305=strict", "-Xsuppress-version-warnings"]
+            jvmTarget = '17'
+
+        }
+    }
+})

config/spring-security-config.gradle

@@ -4,7 +4,7 @@ import trang.RncToXsd
 
 apply plugin: 'io.spring.convention.spring-module'
 apply plugin: 'trang'
-apply plugin: 'kotlin'
+apply plugin: 'security-kotlin'
 
 configurations {
 	opensaml5 {
@@ -153,15 +153,6 @@ tasks.named('sourcesJar', Jar).configure {
 	}
 }
 
-tasks.withType(KotlinCompile).configureEach {
-	kotlinOptions {
-		languageVersion = "1.7"
-		apiVersion = "1.7"
-		freeCompilerArgs = ["-Xjsr305=strict", "-Xsuppress-version-warnings"]
-		jvmTarget = "17"
-	}
-}
-
 configure(project.tasks.withType(Test)) {
 	doFirst {
 		systemProperties['springSecurityVersion'] = version

config/src/test/kotlin/org/springframework/security/config/web/server/ServerX509DslTests.kt

@@ -205,7 +205,7 @@ class ServerX509DslTests {
                                           @Nullable httpHandlerBuilder: WebHttpHandlerBuilder?,
                                           @Nullable connector: ClientHttpConnector?) {
             val filter = SetSslInfoWebFilter(certificate)
-            httpHandlerBuilder!!.filters { filters: MutableList<WebFilter?> -> filters.add(0, filter) }
+            httpHandlerBuilder!!.filters { filters: MutableList<WebFilter> -> filters.add(0, filter) }
         }
     }
 

core/spring-security-core.gradle

@@ -1,9 +1,7 @@
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-
 import java.util.concurrent.Callable
 
 apply plugin: 'io.spring.convention.spring-module'
-apply plugin: 'kotlin'
+apply plugin: 'security-kotlin'
 
 dependencies {
 	management platform(project(":spring-security-dependencies"))
@@ -66,12 +64,3 @@ Callable<String> springVersion() {
 	return  (Callable<String>) { project.configurations.compileClasspath.resolvedConfiguration.resolvedArtifacts
     .find { it.name == 'spring-core' }.moduleVersion.id.version }
 }
-
-tasks.withType(KotlinCompile).configureEach {
-	kotlinOptions {
-		languageVersion = "1.7"
-		apiVersion = "1.7"
-		freeCompilerArgs = ["-Xjsr305=strict", "-Xsuppress-version-warnings"]
-		jvmTarget = "17"
-	}
-}

docs/spring-security-docs.gradle

@@ -1,10 +1,8 @@
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-
 plugins {
 	id 'org.antora' version '1.0.0'
 	id 'io.spring.antora.generate-antora-yml' version '0.0.1'
 	id 'io.spring.convention.repository'
-	id 'kotlin'
+	id 'security-kotlin'
 }
 
 apply plugin: 'io.spring.convention.docs'
@@ -100,12 +98,3 @@ def resolvedVersions(Configuration configuration) {
 test {
 	useJUnitPlatform()
 }
-
-tasks.withType(KotlinCompile).configureEach {
-	kotlinOptions {
-		languageVersion = "1.7"
-		apiVersion = "1.7"
-		freeCompilerArgs = ["-Xjsr305=strict", "-Xsuppress-version-warnings"]
-		jvmTarget = "17"
-	}
-}

docs/src/test/kotlin/org/springframework/security/kt/docs/features/integrations/rest/configurationwebclient/ServerWebClientHttpInterfaceIntegrationConfiguration.kt

@@ -54,11 +54,11 @@ class ServerWebClientHttpInterfaceIntegrationConfiguration {
 
     @Bean
     fun groupConfigurer(server: MockWebServer): WebClientHttpServiceGroupConfigurer {
-        return WebClientHttpServiceGroupConfigurer { groups: HttpServiceGroupConfigurer.Groups<WebClient.Builder?>? ->
+        return WebClientHttpServiceGroupConfigurer { groups: HttpServiceGroupConfigurer.Groups<WebClient.Builder> ->
             val baseUrl = server.url("").toString()
             groups!!
-                .forEachClient(ClientCallback { group: HttpServiceGroup?, builder: WebClient.Builder? ->
-                    builder!!
+                .forEachClient(ClientCallback { group: HttpServiceGroup, builder: WebClient.Builder ->
+                    builder
                         .baseUrl(baseUrl)
                         .defaultHeader("Accept", "application/vnd.github.v3+json")
                 })

docs/src/test/kotlin/org/springframework/security/kt/docs/reactive/authentication/reactivex509/X509ConfigurationTests.kt

@@ -28,6 +28,7 @@ import org.springframework.security.test.web.reactive.server.WebTestClientBuilde
 import org.springframework.security.web.authentication.preauth.x509.X509TestUtils
 import org.springframework.test.web.reactive.server.WebTestClient
 import org.springframework.test.web.reactive.server.WebTestClientConfigurer
+import org.springframework.util.Assert
 import org.springframework.web.server.ServerWebExchange
 import org.springframework.web.server.WebFilter
 import org.springframework.web.server.WebFilterChain
@@ -108,18 +109,19 @@ class X509ConfigurationTests {
 
     companion object {
         private fun x509(certificate: X509Certificate): WebTestClientConfigurer {
-            return WebTestClientConfigurer { builder: WebTestClient.Builder, httpHandlerBuilder: WebHttpHandlerBuilder, connector: ClientHttpConnector? ->
+            return WebTestClientConfigurer { builder: WebTestClient.Builder, httpHandlerBuilder: WebHttpHandlerBuilder?, connector: ClientHttpConnector? ->
 
                 val sslInfo: SslInfo = object : SslInfo {
                     override fun getSessionId(): String {
                         return "sessionId"
                     }
 
-                    override fun getPeerCertificates(): Array<X509Certificate?> {
+                    override fun getPeerCertificates(): Array<X509Certificate> {
                         return arrayOf(certificate)
                     }
                 }
-                httpHandlerBuilder.filters(Consumer { filters: MutableList<WebFilter> ->
+                Assert.notNull(httpHandlerBuilder, "httpHandlerBuilder should not be null")
+                httpHandlerBuilder!!.filters(Consumer { filters: MutableList<WebFilter> ->
                     filters.add(
                         0,
                         SslInfoOverrideWebFilter(sslInfo)

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ org-apache-maven-resolver = "1.9.23"
 org-aspectj = "1.9.24"
 org-bouncycastle = "1.80"
 org-eclipse-jetty = "11.0.25"
-org-jetbrains-kotlin = "1.9.25"
+org-jetbrains-kotlin = "2.2.0"
 org-jetbrains-kotlinx = "1.10.2"
 org-mockito = "5.17.0"
 org-opensaml = "4.3.2"
@@ -67,7 +67,7 @@ org-hamcrest = "org.hamcrest:hamcrest:2.2"
 org-hibernate-orm-hibernate-core = "org.hibernate.orm:hibernate-core:7.0.1.Final"
 org-hsqldb = "org.hsqldb:hsqldb:2.7.4"
 org-jetbrains-kotlin-kotlin-bom = { module = "org.jetbrains.kotlin:kotlin-bom", version.ref = "org-jetbrains-kotlin" }
-org-jetbrains-kotlin-kotlin-gradle-plugin = "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.25"
+org-jetbrains-kotlin-kotlin-gradle-plugin = "org.jetbrains.kotlin:kotlin-gradle-plugin:2.2.0"
 org-jetbrains-kotlinx-kotlinx-coroutines-bom = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-bom", version.ref = "org-jetbrains-kotlinx" }
 org-junit-junit-bom = "org.junit:junit-bom:5.12.2"
 org-mockito-mockito-bom = { module = "org.mockito:mockito-bom", version.ref = "org-mockito" }