DATA 3287 spring boot 4

.github/workflows/build.yml

@@ -9,14 +9,14 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    name: Ubuntu Temurin Java 8
+    name: Ubuntu Temurin Java 21
     steps:
     - name: Checkout
       uses: actions/checkout@v3
     - name: Setup JDK
       uses: actions/setup-java@v3
       with:
-        java-version: '8'
+        java-version: '21'
         distribution: 'temurin'
     - name: Set Gradle Wrapper Permissions
       run: chmod +x gradlew

.gitignore

@@ -135,3 +135,5 @@ temp
 
 # MacOS
 .DS_Store
+
+/.claude

README.md

@@ -28,7 +28,7 @@ Note that due to reliability issues of MavenCentral we only rarely publish there
 
 ## Requirements
 
-Crnk requires Java 1.8 or later and an SLF4J setup for logging.
+Crnk requires Java 21 or later and an SLF4J setup for logging.
 
 ## Example
 
@@ -62,7 +62,7 @@ dependencies {
 
     annotationProcessor 'io.crnk:crnk-gen-java'
 
-    implementation "io.crnk:crnk-setup-spring-boot2"
+    implementation "io.crnk:crnk-setup-spring-boot4"
     implementation "io.crnk:crnk-data-jpa"
     implementation "io.crnk:crnk-data-facet"
     implementation "io.crnk:crnk-format-plain-json"
@@ -196,4 +196,4 @@ Note as part of the build a local Node installation is downloaded to build the f
 
 [![YourKit](https://www.yourkit.com/images/yklogo.png)](https://www.yourkit.com/youmonitor/)
 
-We thank YourKit for supporting open source projects with profiler and monitoring tooling.
+We thank YourKit for supporting open source projects with profiler and monitoring tooling.