Switch to Java 17

.circleci/config.yml

@@ -38,11 +38,11 @@ jobs:
 
     <<: *defaults_gradle
 
-  build_gradle_jdk8:
+  build_gradle_jdk21:
     <<: *defaults
 
     docker:
-      - image: cimg/openjdk:8.0
+      - image: cimg/openjdk:21.0
 
     <<: *defaults_gradle
 
@@ -50,5 +50,5 @@ workflows:
   version: 2
   gradle:
     jobs:
-      - build_gradle_jdk8
+      - build_gradle_jdk21
       - build_gradle_jdk17

.github/workflows/gradle.yml

@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        java-version: [8, 11, 17]
+        java-version: [17, 21, 24]
 
     steps:
       - uses: actions/checkout@v4

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: gradle:8-jdk11
+image: gradle:8-jdk17
 
 variables:
   GRADLE_OPTS: "-Dorg.gradle.daemon=false"

.idea/misc.xml

@@ -13,7 +13,7 @@
   <component name="PDMPlugin">
     <option name="skipTestSources" value="false" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

bitbucket-pipelines.yml

@@ -1,4 +1,4 @@
-image: maven:3-openjdk-18
+image: maven:3-openjdk-21
 
 pipelines:
   default:

build.gradle.kts

@@ -38,14 +38,14 @@ dependencies {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 kotlin {
     compilerOptions {
-        jvmTarget.set(JvmTarget.JVM_1_8)
-        languageVersion.set(KotlinVersion.KOTLIN_1_7)
+        jvmTarget.set(JvmTarget.JVM_17)
+        languageVersion.set(KotlinVersion.KOTLIN_2_2)
     }
 }