Ernestas Gruodis created NETBEANS-2877:
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Summary: Servlet annotations not working
Key: NETBEANS-2877
URL: https://issues.apache.org/jira/browse/NETBEANS-2877
Project: NetBeans
Issue Type: Bug
Environment: Win10, Apache NetBeans IDE 11.0 (Build
incubator-netbeans-release-404-on-20190319), apache-tomee-webprofile-8.0.0-M3
or TomCat 9.0.22, or Glassfish 5.0.1
Reporter: Ernestas Gruodis
Some kind of nightmare - can not launch primitive servlet on
`apache-tomee-webprofile-8.0.0-M3` (the same with TomCat 9.0.22 and Glassfish
5.0.1) and `Apache NetBeans IDE 11.0 (Build
incubator-netbeans-release-404-on-20190319)` by using servlet annotations..
Using JDK11. Here is the code:
package com.xsistema;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(name = "NewServlet", urlPatterns =
{"/meow"})
public class NewServlet extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try ( PrintWriter out = response.getWriter()) \{ /* TODO output your page
here. You may use following sample code. */ out.println("<!DOCTYPE html>");
out.println("<html>"); out.println("<head>"); out.println("<title>Servlet
NewServlet</title>"); out.println("</head>"); out.println("<body>");
out.println("<h1>Servlet NewServlet at " + request.getContextPath() + "</h1>");
out.println("</body>"); out.println("</html>"); }
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on
the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException \{ processRequest(request, response); }
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException \{ processRequest(request, response); }
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() \{ return "Short description"; }//
</editor-fold>
}
And `web.xml` file:
<?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>
The error:
Type Exception Report
Message Error instantiating servlet class [com.xsistema.NewServlet]
Description The server encountered an unexpected condition that prevented it
from fulfilling the request.
Exception
javax.servlet.ServletException: Error instantiating servlet class
[com.xsistema.NewServlet]
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)
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)
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.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:836)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1839)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.base/java.lang.Thread.run(Thread.java:834)
Root Cause
java.lang.RuntimeException:
com.xsistema.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)
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)
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.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:836)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1839)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.base/java.lang.Thread.run(Thread.java:834)
The goal is to declare servlets only by annotations, like `@WebServlet(name =
"NewServlet", urlPatterns = \{"/meow"}
)`.
Tested on NetBeans 8.2 with JDK1.8u221 - all works as expected. I suspect the
problem is in Apache NetBeans 11, even if project JDK is set to 8 (also
source/binary format).
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