在Java 11中使用Solr 8.11.2（Jetty 9.4）时，我们在启动时遇到以下错误：
java.lang.NoClassDefFoundError:雅加达/服务小程序/http/HttpServlet响应

java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...
        at org.eclipse.jetty.start.Main.start(Main.java:491)
        at org.eclipse.jetty.start.Main.main(Main.java:77)
Caused by: java.lang.NoClassDefFoundError: jakarta/servlet/http/HttpServletResponse
        at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
...
        at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.construct(XmlConfiguration.java:1031)
...
        at org.eclipse.jetty.xml.XmlConfiguration.configure(XmlConfiguration.java:380)
        at org.eclipse.jetty.xml.XmlConfiguration.lambda$main$3(XmlConfiguration.java:1893)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1857)
        ... 7 more
Caused by: java.lang.ClassNotFoundException: jakarta.servlet.http.HttpServletResponse
        at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:476)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        ... 23 more

即使我们知道javax.*到jakarta.*的移动，我们也不明白为什么jakarta. * 类甚至试图被加载。
Jetty 9.4仍在使用/提供javax.*。
似乎导致失败的jetty.xml配置文件也没有任何对jakarta的引用。