diff --git a/Jenkinsfile b/Jenkinsfile
index da11262957ee..3672a3005ca6 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -11,13 +11,13 @@ pipeline {
   stages {
     stage("Parallel Stage") {
       parallel {
-        stage("Build / Test - JDK19") {
+        stage("Build / Test - JDK21") {
           agent { node { label 'linux' } }
           steps {
             timeout( time: 180, unit: 'MINUTES' ) {
               checkout scm
-              mavenBuild( "jdk19", "clean install -Dspotbugs.skip=true -Djacoco.skip=true", "maven3")
-              recordIssues id: "jdk19", name: "Static Analysis jdk19", aggregatingResults: true, enabledForFailure: true, tools: [mavenConsole(), java(), checkStyle()]
+              mavenBuild( "jdk21", "clean install -Dspotbugs.skip=true -Djacoco.skip=true", "maven3")
+              recordIssues id: "jdk21", name: "Static Analysis jdk21", aggregatingResults: true, enabledForFailure: true, tools: [mavenConsole(), java(), checkStyle()]
             }
           }
         }
diff --git a/jetty-jaas/pom.xml b/jetty-jaas/pom.xml
index 1e078ad43b67..5576064b61ea 100644
--- a/jetty-jaas/pom.xml
+++ b/jetty-jaas/pom.xml
@@ -166,6 +166,28 @@
         </pluginManagement>
       </build>
     </profile>
+    <profile>
+      <id>jdk20</id>
+      <activation>
+        <jdk>[20,)</jdk>
+      </activation>
+      <build>
+        <pluginManagement>
+          <plugins>
+            <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-surefire-plugin</artifactId>
+              <configuration>
+                <excludes>
+                  <!-- sun.security.x509.X509CertInfo.set not present in Java 20, needs a Java 20 compatible version of Apache Directory Server -->
+                  <exclude>**/JAASLdapLoginServiceTest*</exclude>
+                </excludes>
+              </configuration>
+            </plugin>
+          </plugins>
+        </pluginManagement>
+      </build>
+    </profile>
   </profiles>
 
 </project>
diff --git a/jetty-jaas/src/test/java/org/eclipse/jetty/jaas/JAASLdapLoginServiceTest.java b/jetty-jaas/src/test/java/org/eclipse/jetty/jaas/JAASLdapLoginServiceTest.java
index 3922826aa474..36f5b9ebec7e 100644
--- a/jetty-jaas/src/test/java/org/eclipse/jetty/jaas/JAASLdapLoginServiceTest.java
+++ b/jetty-jaas/src/test/java/org/eclipse/jetty/jaas/JAASLdapLoginServiceTest.java
@@ -31,6 +31,8 @@
 import org.eclipse.jetty.server.Request;
 import org.eclipse.jetty.server.UserIdentity;
 import org.junit.Test;
+import org.junit.jupiter.api.condition.EnabledForJreRange;
+import org.junit.jupiter.api.condition.JRE;
 import org.junit.runner.RunWith;
 
 import static org.junit.Assert.assertFalse;
@@ -41,6 +43,7 @@
 /**
  * JAASLdapLoginServiceTest
  */
+@EnabledForJreRange(max = JRE.JAVA_17, disabledReason = "sun.security.x509.X509CertInfo.set not present in Java 21, needs a Java 21 compatible version of Apache Directory Server")
 @RunWith(FrameworkRunner.class)
 @CreateLdapServer(transports = {@CreateTransport(protocol = "LDAP")})
 @CreateDS(allowAnonAccess = false, partitions = {
diff --git a/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DistributionTests.java b/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DistributionTests.java
index 169fbce48e96..41b751027e0f 100644
--- a/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DistributionTests.java
+++ b/tests/test-distribution/src/test/java/org/eclipse/jetty/tests/distribution/DistributionTests.java
@@ -1436,7 +1436,7 @@ public void testDryRunProperties() throws Exception
     }
 
     @Test
-    @DisabledForJreRange(max = JRE.JAVA_18)
+    @EnabledForJreRange(min = JRE.JAVA_19, max = JRE.JAVA_20)
     public void testVirtualThreadPoolPreview() throws Exception
     {
         String jettyVersion = System.getProperty("jettyVersion");