[jboss-jira] [JBoss JIRA] (WFLY-2897) Including Mojarra implementation in WAR file causes `com.sun.faces.config.ConfigurationException`

[ https://issues.jboss.org/browse/WFLY-2897?page=com.atlassian.jira.plugin.... ] Lincoln Baxter III commented on WFLY-2897: ------------------------------------------ As you wish... here is the stack trace from the latest Widlfly release, CR1. As you can see, the error is the same, and it is not helpful. (In fact it is completely distracting from the real issue.) This is not an issue with multi-JSF support, I'm suggesting that we give the user an error message that means something, or gives them a clue that they've included a version of JSF in the app when they should actually deploy it as a Module. It should certainly be possible to be more helpful when users do something wrong. {code} 00:43:44,096 SEVERE [javax.enterprise.resource.webcontainer.jsf.config] (MSC service thread 1-4) 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:422) [jsf-impl-2.2.4-jbossorg-1.jar:] at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTags(FaceletTaglibConfigProcessor.java:378) [jsf-impl-2.2.4-jbossorg-1.jar:] at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary(FaceletTaglibConfigProcessor.java:321) [jsf-impl-2.2.4-jbossorg-1.jar:] at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.process(FaceletTaglibConfigProcessor.java:270) [jsf-impl-2.2.4-jbossorg-1.jar:] at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:437) [jsf-impl-2.2.4-jbossorg-1.jar:] at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:214) [jsf-impl-2.2.4-jbossorg-1.jar:] at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:173) [undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30] at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:182) [undertow-servlet-1.0.0.Beta30.jar:1.0.0.Beta30] at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:86) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:71) at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_21] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_21] at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_21] 00:43:44,102 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./sample: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./sample: Failed to start service at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.0.CR1.jar:1.2.0.CR1] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_21] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_21] at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_21] Caused by: java.lang.RuntimeException: java.lang.RuntimeException: com.sun.faces.config.ConfigurationException: The tag named passThroughAttribute from namespace http://xmlns.jcp.org/jsf/core has a null handler-class defined at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:207) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:86) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:71) at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.0.CR1.jar:1.2.0.CR1] at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.0.CR1.jar:1.2.0.CR1] ... 3 more Caused by: java.lang.RuntimeException: 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.ConfigureListener.contextInitialized(ConfigureListener.java:273) at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:173) at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:182) ... 7 more Caused by: 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:422) at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTags(FaceletTaglibConfigProcessor.java:378) at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.processTagLibrary(FaceletTaglibConfigProcessor.java:321) at com.sun.faces.config.processor.FaceletTaglibConfigProcessor.process(FaceletTaglibConfigProcessor.java:270) at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:437) at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:214) ... 9 more {code} -- This message is automatically generated by JIRA. 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