I have a very simple servlet which hangs on the servlet init method. Another similar example I have throws an OOM excetpion doing the same thing. All the code is doing is trying to parse the web.xml using the commons digester.

I hope this isn't too much code to paste. I'm running a default 5.0.1 (same behavior on 5.0.0, but this code runs fine on the 4.2.2 server) server with 1.6.0.11 jdk.

This code originates from the struts 1.1 ActionServlet. There is a problem with the digester.parse() call. Does this have something to do with VFS perhaps?

package org.test;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;

import org.apache.commons.digester.Digester;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.Globals;
import org.xml.sax.SAXException;

public class TestServlet extends HttpServlet {

 public TestServlet() {
 super();
 // TODO Auto-generated constructor stub
 }

 protected static Log log = LogFactory.getLog(TestServlet.class);
 protected String registrations[] = {
 "-//Apache Software Foundation//DTD Struts Configuration 1.0//EN",
 "/org/apache/struts/resources/struts-config_1_0.dtd",
 "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN",
 "/org/apache/struts/resources/struts-config_1_1.dtd",
 "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN",
 "/org/apache/struts/resources/web-app_2_2.dtd",
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN",
 "/org/apache/struts/resources/web-app_2_3.dtd"
 };

 protected String servletMapping = null;
 protected String servletName = null;

 /**
 * @see Servlet#init(ServletConfig)
 */
 protected void initServlet() throws ServletException
 {

 // Remember our servlet name
 this.servletName = getServletConfig().getServletName();

 // Prepare a Digester to scan the web application deployment descriptor
 Digester digester = new Digester();
 digester.push(this);
 digester.setNamespaceAware(true);
 digester.setValidating(false);

 // Register our local copy of the DTDs that we can find
 for (int i = 0; i < registrations.length; i += 2) {
 URL url = this.getClass().getResource(registrations[i+1]);
 if (url != null) {
 digester.register(registrations, url.toString());
 }
 }

 // Configure the processing rules that we need
 digester.addCallMethod("web-app/servlet-mapping",
 "addServletMapping", 2);
 digester.addCallParam("web-app/servlet-mapping/servlet-name", 0);
 digester.addCallParam("web-app/servlet-mapping/url-pattern", 1);

 // Process the web application deployment descriptor
 if (log.isDebugEnabled()) {
 log.debug("Scanning web.xml for controller servlet mapping");
 }

 InputStream input =
 getServletContext().getResourceAsStream("/WEB-INF/web.xml");

 try {
 digester.parse(input);

 } catch (IOException e) {
 log.error("io error", e);
 throw new ServletException(e);

 } catch (SAXException e) {
 log.error("error", e);
 throw new ServletException(e);

 } finally {
 if (input != null) {
 try {
 input.close();
 } catch (IOException e) {
 log.error("error", e);
 throw new ServletException(e);
 }
 }
 }

 // Record a servlet context attribute (if appropriate)
 if (log.isDebugEnabled()) {
 log.debug("Mapping for servlet '" + servletName + "' = '" +
 servletMapping + "'");
 }

 if (servletMapping != null) {
 getServletContext().setAttribute(Globals.SERVLET_KEY, servletMapping);
 }

 }

 public void init() throws ServletException {
 log.info("start - init()");
 initServlet();
 log.info("done - init()");
 }

 }

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
 <display-name>jbtest</display-name>
 <servlet>
 <servlet-name>ActionServlet</servlet-name>
 <servlet-class>org.test.TestServlet</servlet-class>
 <load-on-startup>-1</load-on-startup>
 </servlet>
 <servlet-mapping>
 <servlet-name>ActionServlet</servlet-name>
 <url-pattern>/do/eforms-client</url-pattern>
 </servlet-mapping>
</web-app>

It's been over 5 minutes sitting there with the cpu spiked and the init method didn't finish. My log only shows the start log, not the stop.