I am starting up Xwiki 6.4.2 in JBoss EAP 6.3 (running jdk1.7.0_51_x64). During startup I get below stacktrace in the server.log. I grepped through all jar files in the WEB-INF/lib directory but cannot find a class by that name. Infact, sisu-guice-3.2.4-no_aop.jar contains the com.google.inject package, but only the subpackages binder, internal, matcher, name, spi and util. The "servlet" subpackage is absent but appears to be required. The application doesn't complain any further. It creates its database tables and I can launch the Distribution Wizard (though that gives me a different kind of issue as per my other mail). What can I do to make my Xwiki install happy? 2015-03-12 18:56:21,287 -0500 WARN [org.jboss.modules] (ServerService Thread Pool -- 61) Failed to define class org.eclipse.sisu.inject.DefaultRankingFunction$ServletVisitor in Module "deployment.xwiki.war:main" from Service Module Loader: java.lang.LinkageError: Failed to link org/eclipse/sisu/inject/DefaultRankingFunction$ServletVisitor (Module "deployment.xwiki.war:main" from Service Module Loader) at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:487) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:277) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:92) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.Module.loadModuleClass(Module.java:568) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:205) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.eclipse.sisu.inject.DefaultRankingFunction.<clinit>(DefaultRankingFunction.java:40) [org.eclipse.sisu.inject-0.2.1.jar:] at org.codehaus.plexus.DefaultPlexusContainer$DefaultsModule.configure(DefaultPlexusContainer.java:856) [org.eclipse.sisu.plexus-0.2.1.jar:] at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:253) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.spi.Elements.getElements(Elements.java:108) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.spi.Elements.getElements(Elements.java:99) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at org.eclipse.sisu.wire.WireModule.configure(WireModule.java:75) [org.eclipse.sisu.inject-0.2.1.jar:] at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:253) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.spi.Elements.getElements(Elements.java:108) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:135) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:104) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.Guice.createInjector(Guice.java:96) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.Guice.createInjector(Guice.java:73) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at com.google.inject.Guice.createInjector(Guice.java:62) [sisu-guice-3.2.4-no_aop.jar:3.2.4] at org.codehaus.plexus.DefaultPlexusContainer.addPlexusInjector(DefaultPlexusContainer.java:479) [org.eclipse.sisu.plexus-0.2.1.jar:] at org.codehaus.plexus.DefaultPlexusContainer.<init>(DefaultPlexusContainer.java:205) [org.eclipse.sisu.plexus-0.2.1.jar:] at org.codehaus.plexus.DefaultPlexusContainer.<init>(DefaultPlexusContainer.java:168) [org.eclipse.sisu.plexus-0.2.1.jar:] at org.xwiki.extension.repository.aether.internal.components.PlexusContainerProvider.initialize(PlexusContainerProvider.java:63) [xwiki-commons-extension-repository-ma ven-6.4.2.jar:] at org.xwiki.component.embed.InitializableLifecycleHandler.handle(InitializableLifecycleHandler.java:39) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:355) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:334) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.extension.repository.internal.DefaultExtensionRepositoryManager.addRepository(DefaultExtensionRepositoryManager.java:125) [xwiki-commons-extension-api-6.4.2.jar:] at org.xwiki.extension.repository.internal.DefaultExtensionRepositoryManager.initialize(DefaultExtensionRepositoryManager.java:103) [xwiki-commons-extension-api-6.4.2.jar:] at org.xwiki.component.embed.InitializableLifecycleHandler.handle(InitializableLifecycleHandler.java:39) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:355) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:344) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:344) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:344) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:378) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:190) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:344) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:410) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:214) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceList(EmbeddableComponentManager.java:198) [xwiki-commons-legacy-component-default-6.4.2.jar:] at org.xwiki.observation.internal.DefaultObservationManager.initializeListeners(DefaultObservationManager.java:164) [xwiki-commons-observation-local-6.4.2.jar:] at org.xwiki.observation.internal.DefaultObservationManager.getListenersByEvent(DefaultObservationManager.java:131) [xwiki-commons-observation-local-6.4.2.jar:] at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:267) [xwiki-commons-observation-local-6.4.2.jar:] at org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:321) [xwiki-commons-observation-local-6.4.2.jar:] at org.xwiki.container.servlet.XWikiServletContextListener.contextInitialized(XWikiServletContextListener.java:118) [xwiki-platform-container-servlet-6.4.2.jar:] at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3339) [jbossweb-7.4.8.Final-redhat-4.jar:7.4.8.Final-redhat-4] at org.apache.catalina.core.StandardContext.start(StandardContext.java:3777) [jbossweb-7.4.8.Final-redhat-4.jar:7.4.8.Final-redhat-4] at org.jboss.as.web.deployment.WebDeploymentService.doStart(WebDeploymentService.java:161) [jboss-as-web-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19] at org.jboss.as.web.deployment.WebDeploymentService.access$000(WebDeploymentService.java:59) [jboss-as-web-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19] at org.jboss.as.web.deployment.WebDeploymentService$1.run(WebDeploymentService.java:94) [jboss-as-web-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_51] at java.util.concurrent.FutureTask.run(FutureTask.java:262) [rt.jar:1.7.0_51] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_51] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_51] at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_51] at org.jboss.threads.JBossThread.run(JBossThread.java:122) Caused by: java.lang.NoClassDefFoundError: com/google/inject/servlet/ServletModuleTargetVisitor at java.lang.ClassLoader.defineClass1(Native Method) [rt.jar:1.7.0_51] at java.lang.ClassLoader.defineClass(ClassLoader.java:800) [rt.jar:1.7.0_51] at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:361) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:482) [jboss-modules.jar:1.3.3.Final-redhat-1] ... 73 more Caused by: java.lang.ClassNotFoundException: com.google.inject.servlet.ServletModuleTargetVisitor from [Module "deployment.xwiki.war:main" from Service Module Loader] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:213) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389) [jboss-modules.jar:1.3.3.Final-redhat-1] at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134) [jboss-modules.jar:1.3.3.Final-redhat-1] ... 77 more