diff --git a/jetty-core/jetty-tests/jetty-test-client-transports/src/test/java/org/eclipse/jetty/test/client/transport/VirtualThreadsTest.java b/jetty-core/jetty-tests/jetty-test-client-transports/src/test/java/org/eclipse/jetty/test/client/transport/VirtualThreadsTest.java
index a7045014d126..e39f2ed97df2 100644
--- a/jetty-core/jetty-tests/jetty-test-client-transports/src/test/java/org/eclipse/jetty/test/client/transport/VirtualThreadsTest.java
+++ b/jetty-core/jetty-tests/jetty-test-client-transports/src/test/java/org/eclipse/jetty/test/client/transport/VirtualThreadsTest.java
@@ -13,10 +13,6 @@
 
 package org.eclipse.jetty.test.client.transport;
 
-import java.util.Arrays;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.TimeUnit;
 
 import org.eclipse.jetty.client.ContentResponse;
@@ -45,7 +41,6 @@ public void testHandlerInvokedOnVirtualThread(Transport transport) throws Except
         // No virtual thread support in FCGI server-side.
         Assumptions.assumeTrue(transport != Transport.FCGI);
 
-        String virtualThreadsName = "green-";
         prepareServer(transport, new Handler.Abstract()
         {
             @Override
@@ -53,7 +48,7 @@ public boolean handle(Request request, Response response, Callback callback)
             {
                 if (!VirtualThreads.isVirtualThread())
                     response.setStatus(HttpStatus.NOT_IMPLEMENTED_501);
-                if (!Thread.currentThread().getName().startsWith(virtualThreadsName))
+                if (!Thread.currentThread().getName().startsWith("jetty-vt-"))
                     response.setStatus(HttpStatus.NOT_IMPLEMENTED_501);
                 callback.succeeded();
                 return true;
@@ -62,13 +57,7 @@ public boolean handle(Request request, Response response, Callback callback)
         ThreadPool threadPool = server.getThreadPool();
         if (threadPool instanceof VirtualThreads.Configurable)
         {
-            // CAUTION: Java 19 specific reflection code, might change in future Java versions.
-            Object builder = Thread.class.getMethod("ofVirtual").invoke(null);
-            Class<?> builderClass = Arrays.stream(Thread.class.getClasses()).filter(klass -> klass.getName().endsWith("$Builder")).findFirst().orElseThrow();
-            builder = builderClass.getMethod("name", String.class, long.class).invoke(builder, virtualThreadsName, 0L);
-            ThreadFactory factory = (ThreadFactory)builderClass.getMethod("factory").invoke(builder);
-            Executor virtualThreadsExecutor = (Executor)Executors.class.getMethod("newThreadPerTaskExecutor", ThreadFactory.class).invoke(null, factory);
-            ((VirtualThreads.Configurable)threadPool).setVirtualThreadsExecutor(virtualThreadsExecutor);
+            ((VirtualThreads.Configurable)threadPool).setVirtualThreadsExecutor(VirtualThreads.getDefaultVirtualThreadsExecutor());
         }
         server.start();
         startClient(transport);
diff --git a/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/VirtualThreads.java b/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/VirtualThreads.java
index bd977b0df66b..55daea4e35a2 100644
--- a/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/VirtualThreads.java
+++ b/jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/VirtualThreads.java
@@ -16,6 +16,7 @@
 import java.lang.reflect.Method;
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -38,7 +39,11 @@ private static Executor probeVirtualThreadExecutor()
     {
         try
         {
-            return (Executor)Executors.class.getMethod("newVirtualThreadPerTaskExecutor").invoke(null);
+            Class<?> builderClass = Class.forName("java.lang.Thread$Builder");
+            Object threadBuilder = Thread.class.getMethod("ofVirtual").invoke(null);
+            threadBuilder = builderClass.getMethod("name", String.class, long.class).invoke(threadBuilder, "jetty-vt-", 0L);
+            ThreadFactory factory = (ThreadFactory)builderClass.getMethod("factory").invoke(threadBuilder);
+            return (Executor)Executors.class.getMethod("newThreadPerTaskExecutor", ThreadFactory.class).invoke(null, factory);
         }
         catch (Throwable x)
         {
diff --git a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-client-transports/src/test/java/org/eclipse/jetty/ee10/test/client/transport/VirtualThreadsTest.java b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-client-transports/src/test/java/org/eclipse/jetty/ee10/test/client/transport/VirtualThreadsTest.java
index bfd6d36b2d62..d5e45e28ff7f 100644
--- a/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-client-transports/src/test/java/org/eclipse/jetty/ee10/test/client/transport/VirtualThreadsTest.java
+++ b/jetty-ee10/jetty-ee10-tests/jetty-ee10-test-client-transports/src/test/java/org/eclipse/jetty/ee10/test/client/transport/VirtualThreadsTest.java
@@ -14,11 +14,7 @@
 package org.eclipse.jetty.ee10.test.client.transport;
 
 import java.io.IOException;
-import java.util.Arrays;
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -55,7 +51,6 @@ public void testServletInvokedOnVirtualThread(Transport transport) throws Except
         // No virtual thread support in FCGI server-side.
         Assumptions.assumeTrue(transport != Transport.FCGI);
 
-        String virtualThreadsName = "green-";
         prepareServer(transport, new HttpServlet()
         {
             @Override
@@ -63,20 +58,14 @@ protected void service(HttpServletRequest request, HttpServletResponse response)
             {
                 if (!VirtualThreads.isVirtualThread())
                     response.setStatus(HttpStatus.NOT_IMPLEMENTED_501);
-                if (!Thread.currentThread().getName().startsWith(virtualThreadsName))
+                if (!Thread.currentThread().getName().startsWith("jetty-vt-"))
                     response.setStatus(HttpStatus.NOT_IMPLEMENTED_501);
             }
         });
         ThreadPool threadPool = server.getThreadPool();
         if (threadPool instanceof VirtualThreads.Configurable)
         {
-            // CAUTION: Java 19 specific reflection code, might change in future Java versions.
-            Object builder = Thread.class.getMethod("ofVirtual").invoke(null);
-            Class<?> builderClass = Arrays.stream(Thread.class.getClasses()).filter(klass -> klass.getName().endsWith("$Builder")).findFirst().orElseThrow();
-            builder = builderClass.getMethod("name", String.class, long.class).invoke(builder, virtualThreadsName, 0L);
-            ThreadFactory factory = (ThreadFactory)builderClass.getMethod("factory").invoke(builder);
-            Executor virtualThreadsExecutor = (Executor)Executors.class.getMethod("newThreadPerTaskExecutor", ThreadFactory.class).invoke(null, factory);
-            ((VirtualThreads.Configurable)threadPool).setVirtualThreadsExecutor(virtualThreadsExecutor);
+            ((VirtualThreads.Configurable)threadPool).setVirtualThreadsExecutor(VirtualThreads.getDefaultVirtualThreadsExecutor());
         }
         server.start();
         startClient(transport);
diff --git a/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-client-transports/src/test/java/org/eclipse/jetty/ee9/test/client/transport/VirtualThreadsTest.java b/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-client-transports/src/test/java/org/eclipse/jetty/ee9/test/client/transport/VirtualThreadsTest.java
index 2e8a516fb8a3..4cf307090575 100644
--- a/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-client-transports/src/test/java/org/eclipse/jetty/ee9/test/client/transport/VirtualThreadsTest.java
+++ b/jetty-ee9/jetty-ee9-tests/jetty-ee9-test-client-transports/src/test/java/org/eclipse/jetty/ee9/test/client/transport/VirtualThreadsTest.java
@@ -14,11 +14,7 @@
 package org.eclipse.jetty.ee9.test.client.transport;
 
 import java.io.IOException;
-import java.util.Arrays;
 import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -55,7 +51,6 @@ public void testServletInvokedOnVirtualThread(Transport transport) throws Except
         // No virtual thread support in FCGI server-side.
         Assumptions.assumeTrue(transport != Transport.FCGI);
 
-        String virtualThreadsName = "green-";
         prepareServer(transport, new HttpServlet()
         {
             @Override
@@ -63,20 +58,14 @@ protected void service(HttpServletRequest request, HttpServletResponse response)
             {
                 if (!VirtualThreads.isVirtualThread())
                     response.setStatus(HttpStatus.NOT_IMPLEMENTED_501);
-                if (!Thread.currentThread().getName().startsWith(virtualThreadsName))
+                if (!Thread.currentThread().getName().startsWith("jetty-vt-"))
                     response.setStatus(HttpStatus.NOT_IMPLEMENTED_501);
             }
         });
         ThreadPool threadPool = server.getThreadPool();
         if (threadPool instanceof VirtualThreads.Configurable)
         {
-            // CAUTION: Java 19 specific reflection code, might change in future Java versions.
-            Object builder = Thread.class.getMethod("ofVirtual").invoke(null);
-            Class<?> builderClass = Arrays.stream(Thread.class.getClasses()).filter(klass -> klass.getName().endsWith("$Builder")).findFirst().orElseThrow();
-            builder = builderClass.getMethod("name", String.class, long.class).invoke(builder, virtualThreadsName, 0L);
-            ThreadFactory factory = (ThreadFactory)builderClass.getMethod("factory").invoke(builder);
-            Executor virtualThreadsExecutor = (Executor)Executors.class.getMethod("newThreadPerTaskExecutor", ThreadFactory.class).invoke(null, factory);
-            ((VirtualThreads.Configurable)threadPool).setVirtualThreadsExecutor(virtualThreadsExecutor);
+            ((VirtualThreads.Configurable)threadPool).setVirtualThreadsExecutor(VirtualThreads.getDefaultVirtualThreadsExecutor());
         }
         server.start();
         startClient(transport);