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Problem with cometd and jetty 6 / 7

Tags:

jetty

cometd

I'm trying to get started with cometd (http://cometd.org/) and jetty 6 or 7, but I seem to be having problems. I've got an ant script that packages my code up into a war with the cometd 1.1.1 binaries and jetty binaries that are appropriate to the version of jetty I deploy the war to (so 7.1.2.v20100523 binaries when I deploy to jetty 7.1.2.v20100523 and 6.1.24 when I deploy to 6.1.24). I first tried getting a setup with version 7.1.2.v20100523, but when I tried to deploy I got a very long stack trace sample of which is:

2010-05-26 15:32:12.906:WARN::Problem processing jar entry org/eclipse/jetty/util/MultiPartOutputStream.class
java.io.IOException: Invalid resource
    at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204)
    at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113)
    at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575)
    at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152)
    at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82)
    at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64)
    at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75)
    at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587)
    at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107)
    at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68)
    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579)
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
    at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36)
    at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182)
    at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497)
    at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135)
    at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77)
    at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490)
    at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355)
    at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306)
    at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258)
    at java.util.TimerThread.mainLoop(Timer.java:512)
    at java.util.TimerThread.run(Timer.java:462)
2010-05-26 15:32:12.907:WARN::Problem processing jar entry org/eclipse/jetty/util/MultiPartWriter.class
java.io.IOException: Invalid resource
    at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204)
    at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113)
    at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575)
    at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152)
    at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82)
    at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64)
    at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75)
    at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587)
    at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107)
    at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68)
    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579)
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
    at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36)
    at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182)
    at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497)
    at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135)
    at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77)
    at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490)
    at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355)
    at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306)
    at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258)
    at java.util.TimerThread.mainLoop(Timer.java:512)
    at java.util.TimerThread.run(Timer.java:462)
2010-05-26 15:32:12.907:WARN::Problem processing jar entry org/eclipse/jetty/util/Attributes.class
java.io.IOException: Invalid resource
    at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204)
    at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113)
    at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575)
    at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152)
    at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82)
    at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64)
    at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75)
    at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587)
    at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107)
    at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68)
    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579)
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
    at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36)
    at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182)
    at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497)
    at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135)
    at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77)
    at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490)
    at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355)
    at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306)
    at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258)
    at java.util.TimerThread.mainLoop(Timer.java:512)
    at java.util.TimerThread.run(Timer.java:462)

Seemed to go through all the jetty binaries and complain about each class file.

When I tried to deploy to 6.1.24 I got

org.mortbay.util.MultiException[java.lang.NoClassDefFoundError: org/eclipse/jetty/util/ajax/JSON$Source, java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/ThreadPool]
    at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:656)
    at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
    at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    at org.mortbay.jetty.Server.doStart(Server.java:224)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.mortbay.start.Main.invokeMain(Main.java:194)
    at org.mortbay.start.Main.start(Main.java:534)
    at org.mortbay.start.Main.start(Main.java:441)
    at org.mortbay.start.Main.main(Main.java:119)

My web.xml looks like this:

<?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>cometd</servlet-name>
        <servlet-class>org.cometd.server.continuation.ContinuationCometdServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>cometd</servlet-name>
        <url-pattern>/cometd/*</url-pattern>
    </servlet-mapping>

    <servlet>
        <servlet-name>initializer</servlet-name>
        <servlet-class>uk.co.dubit.nexus.comet.BayeuxInitializer</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>

    <!-- <filter>
        <filter-name>cross-origin</filter-name>
        <filter-class>org.eclipse.jetty.servlets.CrossOriginFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>cross-origin</filter-name>
        <url-pattern>/cometd/*</url-pattern>
    </filter-mapping> -->

</web-app>

note cross origin filter is commented out. The class didn't seem to exist when I tried to run on 6.1.24 (which as far as I understand is the correct behaviour, yes?).

Sorry for the noob question but does anyone know what I'm doing wrong here?

Regards, Tom

like image 720
Ceilingfish Avatar asked Jan 31 '26 12:01

Ceilingfish

1 Answers

ok seems there were a couple of problems to work out here. Firstly the version of jetty I was bundling in my war needed to change. I switched to 7.0.2.v20100331. Secondly I had to change the deployment descriptor

<?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>cometd</servlet-name>
        <servlet-class>org.cometd.server.continuation.ContinuationCometdServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>cometd</servlet-name>
        <url-pattern>/cometd/*</url-pattern>
    </servlet-mapping>

    <servlet>
        <servlet-name>initializer</servlet-name>
        <servlet-class>uk.co.dubit.nexus.comet.BayeuxInitializer</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>

    <filter>
        <filter-name>continuation</filter-name>
        <filter-class>org.eclipse.jetty.continuation.ContinuationFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>continuation</filter-name>
        <url-pattern>/cometd/*</url-pattern>
    </filter-mapping>

</web-app>

And finally there's an extra step in deploying a war to jetty 6.1.24 (which is the version I got the code running on in the end), you have to place an XML descriptor for the war in the contexts/ directory. My descriptor looked like

<?xml version="1.0"  encoding="ISO-8859-1"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://jetty.mortbay.org/configure.dtd">
<configure class="org.mortbay.jetty.webapp.WebAppContext">
  <Set name="contextPath">/cometd</Set>
  <Set name="war"><SystemProperty name="jetty.home" default="."/>/webapps/nexus.war</Set>
</configure>

After that my servlet was accessible from the /cometd path listed in this descriptor.

like image 186
Ceilingfish Avatar answered Feb 03 '26 05:02

Ceilingfish
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