Bump av java til 21 (#1223)

* Bump av java til 21

* Bump av java til 21

Author: espenwaaga

.github/workflows/autotest.yml

@@ -46,7 +46,7 @@ jobs:
       - uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0 # ratchet:actions/setup-java@v3
         with:
           distribution: 'temurin'
-          java-version: 17
+          java-version: 21
           cache: 'maven'
       - name: Login to GitHub Packages Docker Registry
         uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # Use commit-sha1 instead of tag for security concerns

.java-version

@@ -1 +1 @@
-17
+21.0

pom.xml

@@ -17,7 +17,7 @@
     </licenses>
 
     <properties>
-        <java.version>17</java.version>
+        <java.version>21</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -270,6 +270,7 @@
                     <parameters>true</parameters>
                     <source>${java.version}</source>
                     <target>${java.version}</target>
+                    <release>${java.version}</release>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>