[MAHOUT-611] Please make taste-web working with mvn jetty:run (org.apache.mahout.cf.taste.common.TasteException: java.lang.ClassNotFoundException: ${recommender.class})

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Not A Problem
• Affects Version/s: 0.5
• Labels: Recommender Servlet mahout taste-web

Environment

Mahout Hackathon (CBase Berlin):

Mac OS X 10.6.6

$ java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04-307-10M3261)
Java HotSpot(TM) 64-Bit Server VM (build 17.1-b03-307, mixed mode)

$ mvn -version
Apache Maven 2.2.1 (r801777; 2009-08-06 21:16:01+0200)
Java version: 1.6.0_22
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x" version: "10.6.6" arch: "x86_64" Family: "mac"

• Assignee: Sean R. Owen
• Reporter: Manuel Blechschmidt
• Created: 19/Feb/11 17:46
• Updated: 21/May/11 03:22
• Resolved: 20/Feb/11 16:00

Description

When trying to start the integrated jetty server in taste-web it can not load the class: "${recommender.class}". When checking out trunk it should be possible to directly start up the taste-web application with: mvn jetty:run

Complete command line output:

$ pwd
/Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web
dynamic218:taste-web manuel$ mvn jetty:run
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Mahout Taste Webapp
[INFO] task-segment: [jetty:run]
[INFO] ------------------------------------------------------------------------
[INFO] Preparing jetty:run
[INFO] [resources:resources

{execution: default-resources}

]
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 0 resource to /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/target/mahout-taste-webapp-0.5-SNAPSHOT/WEB-INF/lib
[INFO] [compiler:compile

{execution: default-compile}

]
[INFO] Nothing to compile - all classes are up to date
[INFO] [resources:testResources

{execution: default-testResources}

]
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/src/test/resources
[INFO] [compiler:testCompile

{execution: default-testCompile}

]
[INFO] Nothing to compile - all classes are up to date
[INFO] [jetty:run

{execution: default-cli}

]
[INFO] Configuring Jetty for project: Mahout Taste Webapp
[INFO] webAppSourceDirectory /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/src/main/webapp does not exist. Defaulting to /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/src/main/webapp
[INFO] Reload Mechanic: automatic
[INFO] Classes = /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/target/classes
2011-02-19 18:41:49.989:INFO::Logging to StdErrLog::DEBUG=false via org.eclipse.jetty.util.log.StdErrLog
[INFO] Context path = /
[INFO] Tmp directory = /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/target/tmp
[INFO] Web defaults = org/eclipse/jetty/webapp/webdefault.xml
[INFO] Web overrides = none
[INFO] web.xml file = file:/Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/src/main/webapp/WEB-INF/web.xml
[INFO] Webapp directory = /Users/manuel/Projects/Masterarbeit/workspace/Mahout/taste-web/src/main/webapp
[INFO] Starting jetty 7.1.2.v20100523 ...
2011-02-19 18:41:50.077:INFO::jetty-7.1.2.v20100523
2011-02-19 18:41:50.770:INFO::No Transaction manager found - if your webapp requires one, please configure one.
2011-02-19 18:41:50.846:WARN:/:unavailable
org.apache.mahout.cf.taste.common.TasteException: java.lang.ClassNotFoundException: ${recommender.class}
at org.apache.mahout.cf.taste.web.RecommenderSingleton.<init>(RecommenderSingleton.java:53)
at org.apache.mahout.cf.taste.web.RecommenderSingleton.initializeIfNeeded(RecommenderSingleton.java:42)
at org.apache.mahout.cf.taste.web.RecommenderServlet.init(RecommenderServlet.java:74)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:421)
at org.eclipse.jetty.servlet.ServletHolder.doStart(ServletHolder.java:245)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:691)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:192)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:995)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381)
at org.mortbay.jetty.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:114)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:165)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:162)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:165)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:92)
at org.eclipse.jetty.server.Server.doStart(Server.java:226)
at org.mortbay.jetty.plugin.JettyServer.doStart(JettyServer.java:67)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55)
at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:433)
at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:377)
at org.mortbay.jetty.plugin.JettyRunMojo.execute(JettyRunMojo.java:577)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
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.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
2011-02-19 18:41:50.873:INFO::Started SelectChannelConnector@0.0.0.0:8080
[INFO] Started Jetty Server
^C[INFO] Jetty server exiting.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 14 seconds
[INFO] Finished at: Sat Feb 19 18:42:00 CET 2011
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