[JENKINS-73140] Adapt to Jetty 12 EE8

Author: raul-arabaolaza

Jenkinsfile

@@ -1,7 +1,6 @@
 buildPlugin(
   useContainerAgent: true,
   configurations: [
-    [platform: 'linux', jdk: 11],
     [platform: 'linux', jdk: 21],
     [platform: 'windows', jdk: 17],
 ])

pom.xml

@@ -28,14 +28,17 @@
     <revision>4.11.0</revision>
     <changelist>999999-SNAPSHOT</changelist>
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
-    <jenkins.version>2.387.3</jenkins.version>
+    <jenkins.version>2.472</jenkins.version>
     <no-test-jar>false</no-test-jar>
     <!-- 
       beware https://github.com/jenkinsci/plugin-pom/issues/705 and https://github.com/jenkinsci/plugin-pom/issues/707
       if updating these ensure the used transitive deps that have their version managed are updated as direct dependencies and any unused ones are removed.
     -->
     <okio.version>3.5.0</okio.version>
     <kotlin.version>1.9.22</kotlin.version>
+    <!--TODO Until is included in parent pom -->
+    <maven.compiler.release>17</maven.compiler.release>
+    <jenkins-test-harness.version>2250.v03a_1295b_0a_30</jenkins-test-harness.version>
   </properties>
 
   <dependencyManagement>

src/test/java/jenkins/plugins/github/api/mock/MockGitHub.java

@@ -27,7 +27,7 @@
 import org.eclipse.jetty.server.HttpConnectionFactory;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.ServerConnector;
-import org.eclipse.jetty.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee8.servlet.ServletContextHandler;
 import org.jvnet.hudson.test.ThreadPoolImpl;
 import org.kohsuke.stapler.HttpResponse;
 import org.kohsuke.stapler.QueryParameter;