相关疑难解决方法(0)

某种噩梦 - 无法通过使用 servlet 注释在 Apache Tomcat 9.0.22（或 Glassfish 5.0.1）和 Apache NetBeans IDE 11.0（Build incubator-netbeans-release-404-on-20190319）上启动原始 servlet。使用 JDK 1.8u221。这是代码：

@WebServlet(name = "NewServlet", urlPatterns = {"/meow"})
public class NewServlet extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.getWriter().println("test");
    }
}

和web.xml文件：

<?xml version="1.0" encoding="UTF-8"?>

<web-app 
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    version="3.1">

</web-app>

根本原因（注意行号，它总是1！）：

java.lang.RuntimeException: 
    com.example.NewServlet.<init>(NewServlet.java:1)
    java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
    java.base/java.lang.Class.newInstance(Class.java:584)
    org.apache.openejb.core.WebContext.newWeakableInstance(WebContext.java:147)
    org.apache.openejb.core.WebContext.newInstance(WebContext.java:181)
    org.apache.tomee.catalina.JavaeeInstanceManager.newInstance(JavaeeInstanceManager.java:78)
    org.apache.tomee.catalina.JavaeeInstanceManager.newInstance(JavaeeInstanceManager.java:124)
    org.apache.tomee.catalina.JavaeeInstanceManager.newInstance(JavaeeInstanceManager.java:119)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
    org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45) …