2:45 p.m.
NullPointerException in VFSUtils.readManifest during WAR deployment
-------------------------------------------------------------------
Key: JBAS-5178
URL: http://jira.jboss.com/jira/browse/JBAS-5178
Project: JBoss Application Server
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: Deployment services
Affects Versions: JBossAS-5.0.0.Beta3
Environment: * Java VM: Java HotSpot(TM) Server VM 1.6.0_03-b05,Sun Microsystems
Inc.
* OS-System: Windows XP 5.1,x86
Reporter: David Bernstein
Assigned To: Dimitris Andreadis
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. I
hope I've captured all the relevant information.
Thanks.
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