diff --git a/Jenkinsfile b/Jenkinsfile
index e0d661404eb..a3ae5133ae3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -7,42 +7,42 @@ pipeline {
   stages {
     stage("Parallel Stage") {
       parallel {
-//        stage("Build / Test - JDK11") {
-//          agent { node { label 'linux' } }
-//          steps {
-//            container('jetty-build') {
-//              timeout( time: 120, unit: 'MINUTES' ) {
-//                mavenBuild( "jdk11", "clean install -Perrorprone", "maven3")
-//                // Collect up the jacoco execution results (only on main build)
-//                jacoco inclusionPattern: '**/org/eclipse/jetty/**/*.class',
-//                       exclusionPattern: '' +
-//                               // build tools
-//                               '**/org/eclipse/jetty/ant/**' + ',**/org/eclipse/jetty/maven/**' +
-//                               ',**/org/eclipse/jetty/jspc/**' +
-//                               // example code / documentation
-//                               ',**/org/eclipse/jetty/embedded/**' + ',**/org/eclipse/jetty/asyncrest/**' +
-//                               ',**/org/eclipse/jetty/demo/**' +
-//                               // special environments / late integrations
-//                               ',**/org/eclipse/jetty/gcloud/**' + ',**/org/eclipse/jetty/infinispan/**' +
-//                               ',**/org/eclipse/jetty/osgi/**' +
-//                               ',**/org/eclipse/jetty/http/spi/**' +
-//                               // test classes
-//                               ',**/org/eclipse/jetty/tests/**' + ',**/org/eclipse/jetty/test/**',
-//                       execPattern: '**/target/jacoco.exec',
-//                       classPattern: '**/target/classes',
-//                       sourcePattern: '**/src/main/java'
-//                recordIssues id: "jdk11", name: "Static Analysis jdk11", aggregatingResults: true, enabledForFailure: true, tools: [mavenConsole(), java(), checkStyle(), spotBugs(), pmdParser(), errorProne()]
-//              }
-//            }
-//          }
-//        }
+        stage("Build / Test - JDK11") {
+          agent { node { label 'linux' } }
+          steps {
+            container('jetty-build') {
+              timeout( time: 120, unit: 'MINUTES' ) {
+                mavenBuild( "jdk11", "clean install -Perrorprone", "maven3")
+                // Collect up the jacoco execution results (only on main build)
+                jacoco inclusionPattern: '**/org/eclipse/jetty/**/*.class',
+                       exclusionPattern: '' +
+                               // build tools
+                               '**/org/eclipse/jetty/ant/**' + ',**/org/eclipse/jetty/maven/**' +
+                               ',**/org/eclipse/jetty/jspc/**' +
+                               // example code / documentation
+                               ',**/org/eclipse/jetty/embedded/**' + ',**/org/eclipse/jetty/asyncrest/**' +
+                               ',**/org/eclipse/jetty/demo/**' +
+                               // special environments / late integrations
+                               ',**/org/eclipse/jetty/gcloud/**' + ',**/org/eclipse/jetty/infinispan/**' +
+                               ',**/org/eclipse/jetty/osgi/**' +
+                               ',**/org/eclipse/jetty/http/spi/**' +
+                               // test classes
+                               ',**/org/eclipse/jetty/tests/**' + ',**/org/eclipse/jetty/test/**',
+                       execPattern: '**/target/jacoco.exec',
+                       classPattern: '**/target/classes',
+                       sourcePattern: '**/src/main/java'
+                recordIssues id: "jdk11", name: "Static Analysis jdk11", aggregatingResults: true, enabledForFailure: true, tools: [mavenConsole(), java(), checkStyle(), spotBugs(), pmdParser(), errorProne()]
+              }
+            }
+          }
+        }
 
         stage("Build / Test - JDK17") {
           agent { node { label 'linux' } }
           steps {
             container( 'jetty-build' ) {
               timeout( time: 120, unit: 'MINUTES' ) {
-                mavenBuild( "jdk17", "clean install -Dspotbugs.skip=true -Djacoco.skip=true -am -pl :test-http-client-transport -Dtest=HttpClientLoadTest", "maven3")
+                mavenBuild( "jdk17", "clean install -Dspotbugs.skip=true -Djacoco.skip=true", "maven3")
                 recordIssues id: "jdk17", name: "Static Analysis jdk17", aggregatingResults: true, enabledForFailure: true, tools: [mavenConsole(), java(), checkStyle(), spotBugs(), pmdParser()]
               }
             }
diff --git a/tests/test-http-client-transport/src/test/java/org/eclipse/jetty/http/client/HttpClientLoadTest.java b/tests/test-http-client-transport/src/test/java/org/eclipse/jetty/http/client/HttpClientLoadTest.java
index 9b0f40c2012..241d704b45c 100644
--- a/tests/test-http-client-transport/src/test/java/org/eclipse/jetty/http/client/HttpClientLoadTest.java
+++ b/tests/test-http-client-transport/src/test/java/org/eclipse/jetty/http/client/HttpClientLoadTest.java
@@ -80,7 +80,9 @@ public class HttpClientLoadTest extends AbstractTest<HttpClientLoadTest.LoadTran
     @ArgumentsSource(TransportProvider.class)
     public void testIterative(Transport transport) throws Exception
     {
-        Assumptions.assumeTrue(transport == Transport.H3);
+        // TODO: cannot run HTTP/3 (or UDP) in Jenkins.
+        if ("ci".equals(System.getProperty("env")))
+            Assumptions.assumeTrue(transport != Transport.H3);
 
         init(transport);
         scenario.start(new LoadHandler(), client ->
@@ -95,14 +97,14 @@ public class HttpClientLoadTest extends AbstractTest<HttpClientLoadTest.LoadTran
 
         // At least 25k requests to warmup properly (use -XX:+PrintCompilation to verify JIT activity)
         int runs = 1;
-        int iterations = 50;
+        int iterations = 100;
         for (int i = 0; i < runs; ++i)
         {
             run(transport, iterations);
         }
 
         // Re-run after warmup
-        iterations = 100;
+        iterations = 250;
         for (int i = 0; i < runs; ++i)
         {
             run(transport, iterations);
@@ -115,7 +117,9 @@ public class HttpClientLoadTest extends AbstractTest<HttpClientLoadTest.LoadTran
     @ArgumentsSource(TransportProvider.class)
     public void testConcurrent(Transport transport) throws Exception
     {
-        Assumptions.assumeTrue(transport == Transport.H3);
+        // TODO: cannot run HTTP/3 (or UDP) in Jenkins.
+        if ("ci".equals(System.getProperty("env")))
+            Assumptions.assumeTrue(transport != Transport.H3);
 
         init(transport);
         scenario.start(new LoadHandler(), client ->
diff --git a/tests/test-http-client-transport/src/test/resources/jetty-logging.properties b/tests/test-http-client-transport/src/test/resources/jetty-logging.properties
index dfa1ab96a21..0d1600586d5 100644
--- a/tests/test-http-client-transport/src/test/resources/jetty-logging.properties
+++ b/tests/test-http-client-transport/src/test/resources/jetty-logging.properties
@@ -9,4 +9,4 @@ org.eclipse.jetty.http2.hpack.LEVEL=INFO
 #org.eclipse.jetty.http3.LEVEL=DEBUG
 org.eclipse.jetty.http3.qpack.LEVEL=INFO
 #org.eclipse.jetty.quic.LEVEL=DEBUG
-org.eclipse.jetty.quic.quiche.LEVEL=DEBUG
+org.eclipse.jetty.quic.quiche.LEVEL=INFO