[Installation, Configuration & DEPLOYMENT] - NullPointerException in VFSUtils.readManifest during WAR de
by dbbernstein
I have a very simple WAR file that I'm trying to deploy on JBoss 5.0.0.Beta3.
I'm using:
* Java VM: Java HotSpot(TM) Server VM 1.6.0_03-b05,Sun Microsystems Inc.
* OS-System: Windows XP 5.1,x86
I am using the -Dsun.lang.ClassLoader.allowArraySyntax=true option for the JVM for Java 6 with JBoss 5 as described in JBAS-4491.
Intermittently, when I deploy the WAR file, I get a NullPointerException in org.jboss.virtual.VFSUtils.readManifest():
| 2008-01-24 18:48:53,624 DEBUG [org.jboss.deployers.plugins.main.MainDeployerImpl] Add deployment: vfsfile:/C:/java/jboss/jboss-5.0.0.Beta3/server/orgmob/deploy/orgmobilist.war
| 2008-01-24 18:48:53,624 DEBUG [org.jboss.deployers.plugins.main.MainDeployerImpl] Removing previous deployment: vfsfile:/C:/java/jboss/jboss-5.0.0.Beta3/server/orgmob/deploy/orgmobilist.war
| 2008-01-24 18:48:53,624 DEBUG [org.jboss.deployers.plugins.main.MainDeployerImpl] Scheduling undeployment: vfsfile:/C:/java/jboss/jboss-5.0.0.Beta3/server/orgmob/deploy/orgmobilist.war parent=null
| 2008-01-24 18:48:53,624 WARN [org.jboss.system.server.profileservice.hotdeploy.HDScanner] Scan failed
| org.jboss.deployers.spi.DeploymentException: Error populating deployment vfsfile:/C:/java/jboss/jboss-5.0.0.Beta3/server/orgmob/deploy/orgmobilist.war
| at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49)
| at org.jboss.deployers.structure.spi.helpers.AbstractStructureBuilder.populateContext(AbstractStructureBuilder.java:77)
| at org.jboss.deployers.structure.spi.helpers.AbstractStructuralDeployers.determineStructure(AbstractStructuralDeployers.java:89)
| at org.jboss.deployers.plugins.main.MainDeployerImpl.determineStructure(MainDeployerImpl.java:743)
| at org.jboss.deployers.plugins.main.MainDeployerImpl.addDeployment(MainDeployerImpl.java:280)
| at org.jboss.deployers.plugins.main.MainDeployerImpl.addDeployment(MainDeployerImpl.java:237)
| at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:270)
| at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)
| at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
| at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
| at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
| at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
| at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
| at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
| at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
| at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
| at java.lang.Thread.run(Thread.java:619)
| Caused by: java.lang.NullPointerException
| at org.jboss.virtual.VFSUtils.readManifest(VFSUtils.java:208)
| at org.jboss.virtual.VFSUtils.getManifest(VFSUtils.java:187)
| at org.jboss.virtual.VFSUtils.addManifestLocations(VFSUtils.java:106)
| at org.jboss.deployers.vfs.plugins.structure.VFSStructureBuilder.applyContextInfo(VFSStructureBuilder.java:155)
| at org.jboss.deployers.structure.spi.helpers.AbstractStructureBuilder.populateContext(AbstractStructureBuilder.java:73)
| ... 15 more
|
Sometimes it works without complaint. I haven't been able to figure out exactly which conditions tickle this. I had suspicions that it might have to do with whether it was a hot deploy or on the existence of the properties file, but I wasn't able to prove it consistently. It did seem that if there was previously no properties file and I then did a hot deploy with a properties file, then I got the exception. I was able to deploy successfully to 4.2.2.GA. The structure of the WAR is:
| META-INF/
| META-INF/MANIFEST.MF
| WEB-INF/
| WEB-INF/web.xml
| WEB-INF/classes/
| WEB-INF/classes/com/
| WEB-INF/classes/com/orgmob/
| WEB-INF/classes/com/orgmob/orgmobilist/
| WEB-INF/classes/com/orgmob/orgmobilist/server/
| WEB-INF/classes/com/orgmob/orgmobilist/orgmob.properties
| WEB-INF/classes/com/orgmob/orgmobilist/server/FooServlet.class
|
The manifest is:
| Manifest-Version: 1.0
| Ant-Version: Apache Ant 1.7.0
| Created-By: 1.6.0_03-b05 (Sun Microsystems Inc.)
|
|
|
The web.xml file is:
| <?xml version="1.0" encoding="UTF-8"?>
| <web-app xmlns="http://java.sun.com/xml/ns/javaee"
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
| xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
| version="2.5">
|
| <servlet>
| <servlet-name>foo</servlet-name>
| <servlet-class>com.orgmob.orgmobilist.server.FooServlet</servlet-class>
| </servlet>
|
| <servlet-mapping>
| <servlet-name>foo</servlet-name>
| <url-pattern>/foo</url-pattern>
| </servlet-mapping>
|
| </web-app>
|
The servlet code is:
| package com.orgmob.orgmobilist.server;
|
| import java.io.IOException;
| import java.io.PrintWriter;
| import javax.servlet.ServletException;
| import javax.servlet.http.HttpServlet;
| import javax.servlet.http.HttpServletRequest;
| import javax.servlet.http.HttpServletResponse;
|
| public class FooServlet extends HttpServlet {
|
| private static final long serialVersionUID = 1L;
|
| private void doGetPost(HttpServletRequest req, HttpServletResponse resp)
| throws ServletException, IOException {
| String userid = req.getParameter("userid");
| resp.setContentType("text/html");
| resp.setCharacterEncoding("UTF-8");
| PrintWriter pw = resp.getWriter();
| pw.println("<html>");
| pw.println(" <head>");
| pw.println(" <title>foo servlet</title>");
| pw.println(" </head>");
| pw.println(" <body>");
| pw.println(" <p>userid: ");
| pw.println(userid);
| pw.println(" </p>");
| pw.println(" <p>");
| pw.println(" </p>");
| pw.println(" </body>");
| pw.println("</html>");
| pw.flush();
| pw.close();
| resp.setStatus(HttpServletResponse.SC_OK);
| }
|
| @Override
| public void doGet(HttpServletRequest req, HttpServletResponse resp)
| throws ServletException, IOException {
| doGetPost(req,resp);
| }
|
| @Override
| public void doPost(HttpServletRequest req, HttpServletResponse resp)
| throws ServletException, IOException {
| doGetPost(req,resp);
| }
| }
|
The properties file is:
| # orgmob
| # Copyright 2007-2008 David B. Bernstein
|
| # major.minor.patch versioning scheme for orgmob
| orgmob.major.version=0
| orgmob.minor.version=0
| orgmob.patch.version=0
|
| #
| orgmob.copyright.year=2007-2008
|
Apologies in advance if there's an obvious problem, a missed bug, or a missed post.
Thanks.
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18 years, 4 months