I wonder if there is still anyone able to answer my question but still:

I have found a problem that prevents deploying cocoon to 3.0 containers if
the webapp contains webjars - by webjar I mean a jar containing
META-INF/resources folder which is specially treated by sevlet container
(the resources from that folder are served by container itself bypassing
any webapp setup).

This happens on jetty 9.x. No matter if I set webapp to be 2.5 servlet
compliant or 3.0.
Does not happen on jetty 8 which is ancient as of now.


I try running my app in embedded Jetty 9 - it works - as long as there is
no actual .war - there is no scanning for META-INF resources.

As soon as I build a war this is how a configured context looks like:


startup of context o.e.j.w.WebAppContext@5bcab519{/,[

file:///C:/cygwin/tmp/jetty-0.0.0.0-8080-root.war-_-any-1513195852101013802.dir/webapp/,
jar:file:///C:/temp/jetty/mywebapp/smart-libs/modernizr-2.8.3.jar!/META-INF/resources,
jar:file:///C:/temp/jetty/mywebapp/smart-libs/openlayers-3.2.0.jar!/META-INF/resources,
jar:file:///C:/temp/jetty/mywebapp/smart-libs/bootstrap-3.3.2.jar!/META-INF/resources,
jar:file:///C:/temp/jetty/mywebapp/smart-libs/jquery-1.11.1.jar!/META-INF/resources],UNAVAILABLE}
{C:\temp\jetty-gemini\gemini/root.war}

suddenly there is more than one root for static resources.

This yields following error:

org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'org.apache.cocoon.Processor': Initialization of bean
failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Unable to
initialize Avalon component with role org.apache.cocoon.Processor; nested
exception is
org.apache.avalon.framework.configuration.ConfigurationException: Cannot
resolve context://sitemap.xmap
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
        at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755)
        at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:759)
        at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
        at
org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:434)
        at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
        at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
        at
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:843)
        at
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:533)
        at
org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:816)
        at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:345)
        at
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1404)
        at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1366)
        at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:778)
        at
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:262)
        at
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:520)
        at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at
org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41)
        at
org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:188)
        at
org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:499)
        at
org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:147)
        at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180)
        at
org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:458)
        at
org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64)
        at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:610)
        at
org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:529)
        at org.eclipse.jetty.util.Scanner.scan(Scanner.java:392)
        at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313)
        at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at
org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:150)
        at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at
org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:561)
        at
org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:236)
        at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
        at org.eclipse.jetty.server.Server.start(Server.java:411)
        at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:113)
        at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
        at org.eclipse.jetty.server.Server.doStart(Server.java:378)
        at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
        at
org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1516)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1441)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:214)
        at org.eclipse.jetty.start.Main.start(Main.java:457)
        at org.eclipse.jetty.start.Main.main(Main.java:75)
Caused by: org.springframework.beans.factory.BeanCreationException: Unable
to initialize Avalon component with role org.apache.cocoon.Processor;
nested exception is
org.apache.avalon.framework.configuration.ConfigurationException: Cannot
resolve context://sitemap.xmap
        at
org.apache.cocoon.core.container.spring.avalon.AvalonBeanPostProcessor.postProcessBeforeInitialization(AvalonBeanPostProcessor.java:258)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1564)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
        ... 54 more
Caused by:
org.apache.avalon.framework.configuration.ConfigurationException: Cannot
resolve context://sitemap.xmap
        at
org.apache.cocoon.components.treeprocessor.TreeProcessor.configure(TreeProcessor.java:230)
        at
org.apache.avalon.framework.container.ContainerUtil.configure(ContainerUtil.java:202)
        at
org.apache.cocoon.core.container.spring.avalon.AvalonBeanPostProcessor.postProcessBeforeInitialization(AvalonBeanPostProcessor.java:246)
        ... 57 more
Caused by: java.net.MalformedURLException: context://sitemap.xmap could not
be found. (possible context problem)
        at
org.apache.cocoon.components.source.impl.ContextSourceFactory.getSource(ContextSourceFactory.java:128)
        at
org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153)
        at
org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183)
        at
org.apache.cocoon.components.treeprocessor.TreeProcessor.configure(TreeProcessor.java:228)
        ... 59 more

This is the problematic ContextSourceFactory code:

    public Source getSource(String location, Map parameters) throws
IOException {
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Creating source object for " + location);
        }

        // Lookup resolver
        SourceResolver resolver = null;
        try {
            resolver = (SourceResolver)
this.manager.lookup(SourceResolver.ROLE);

            // Remove the protocol and the first '/'
            final int pos = location.indexOf(":/");
            final String scheme = location.substring(0, pos);
            final String path = location.substring(pos + 2);

            // fix for #24093, we don't give access to files outside the
context:
            if (path.indexOf("../") != -1) {
                throw new MalformedURLException("Invalid path ('../' is not
allowed) : " + path);
            }

            URL u;

            // Try to get a file first and fall back to a resource URL
            String actualPath = this.servletContext.getRealPath(path);
            if (actualPath != null) {
                u = new File(actualPath).toURL();
            } else {
                u = this.servletContext.getResource(path);
            }

            if (u != null) {
                Source source = resolver.resolveURI(u.toExternalForm());
                if ( parameters != null
                     && BooleanUtils.toBoolean("force-traversable")
                     && this.servletContext != null
                     && !(source instanceof TraversableSource) ) {
                    final Set children =
this.servletContext.getResourcePaths(path + '/');
                    if ( children != null ) {
                        source = new TraversableContextSource(source,
children, this, path, scheme);
                    }
                }
                return source;
            }

            final String message = location + " could not be found.
(possible context problem)";
            getLogger().info(message);
            throw new MalformedURLException(message);
        } catch (ServiceException se) {
            throw new SourceException("Unable to lookup source resolver.",
se);
        } finally {
            this.manager.release(resolver);
        }
    }

If I use jetty 8
String actualPath = this.servletContext.getRealPath(path);

never returns null - even if the path we ask for does not exist.

If I use jetty 9:
- if there is a single resource root (webapp directory) and no webjars -
the path is returned
- if there is a multi resource setup (with webjars) - every webjar is
scanned for sitemap.xmap resource. The resource is nowhere to be found -
null is returned which by jetty/servlet spec api docs is a PROPER response.

if the path is null ContextSourceFactory falls back to:

 u = this.servletContext.getResource(path);

... which is also null in this problematic case.


What is the proper way of handing this problem?

   LG

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