Including Mojarra implementation in WAR file causes `com.sun.faces.config.ConfigurationException` ------------------------------------------------------------------------------------------------- Key: WFLY-2897 URL: https://issues.jboss.org/browse/WFLY-2897 Project: WildFly Issue Type: Feature Request Security Level: Public(Everyone can see) Components: JSF Affects Versions: 8.0.0.CR1 Reporter: Lincoln Baxter III Assignee: Farah Juma Attachments: sample.zip This stack trace was taken from EAP6 or JBoss AS7 - but it also occurs on Wildfly. If possible, a nicer exception message (warning the user that they have included an implementation of JSF when,) might be useful. But I don't know the exact dynamics behind this interaction, so not sure what is possible here, or what "should" be the right interaction. I just know this was a bit hard to track down until randomly tripping on this in the POM and removing it. {code} 15:15:37,992 SEVERE [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 71) Critical error during deployment: : com.sun.faces.config.ConfigurationException: The tag named passThroughAttribute from namespace http://xmlns.jcp.org/jsf/core has a null handler-class defined at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processHandlerClass(FaceletTaglibConfigProcessor.java:415) [jsf-impl-2.1.19-redhat-2.jar:2.1.19-redhat-2] at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTags(FaceletTaglibConfigProcessor.java:371) [jsf-impl-2.1.19-redhat-2.jar:2.1.19-redhat-2] at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary(FaceletTaglibConfigProcessor.java:314) [jsf-impl-2.1.19-redhat-2.jar:2.1.19-redhat-2] at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.process(FaceletTaglibConfigProcessor.java:263) [jsf-impl-2.1.19-redhat-2.jar:2.1.19-redhat-2] at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:363) [jsf-impl-2.1.19-redhat-2.jar:2.1.19-redhat-2] at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:216) [jsf-impl-2.1.19-redhat-2.jar:2.1.19-redhat-2] at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3339) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1] at org.apache.catalina.core.StandardContext.start(StandardContext.java:3777) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1] at org.jboss.as.web.deployment.WebDeploymentService.doStart(WebDeploymentService.java:156) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14] at org.jboss.as.web.deployment.WebDeploymentService.access$000(WebDeploymentService.java:60) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14] at org.jboss.as.web.deployment.WebDeploymentService$1.run(WebDeploymentService.java:93) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_21] at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_21] at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_21] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_21] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_21] at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_21] at org.jboss.threads.JBossThread.run(JBossThread.java:122) {code}