J2EE/Java Grips 1: Websphere is garbage, OMFG 1

I was debugging a websphere/RAD issue, thinking that maybe I had messed up a configuration way down in the cellar of RAD's infinite supply of configurations. Maybe the flux-capacitor node mx3e cell.xml missed the rptptppt_Vn_ setting. No my friends, RAD seemed to have bombed on a missing servlet tag in the web.xml. NPE, NullPointer on not having the most basic setting in a J2EE app. Don't get me wrong, a developer should have the setting, but something more helpful like 'You are missing your servlet mapping' would have been helpful. here is the configuration and the error.


    <servlet-mapping>
        <servlet-name>OnlineServlet</servlet-name>
        <url-pattern>/OnlineServlet</url-pattern>
    </servlet-mapping>

------

[1/26/09 23:30:14:166 EST] 00000047 SystemOut     O Caused by: java.lang.NullPointerException
    at com.ibm.ws.wswebcontainer.webapp.WebAppConfigurationHelper.constructServletMappings(WebAppConfigurationHelper.java:405)
    at com.ibm.ws.wswebcontainer.webapp.WebAppConfigurationHelper.createConfiguration(WebAppConfigurationHelper.java:147)
    at com.ibm.ws.webcontainer.metadata.WebMetaDataFactory.createMetaData(WebMetaDataFactory.java:169)
    at com.ibm.ws.runtime.component.MetaDataMgrImpl.createMetaDataFromFactories(MetaDataMgrImpl.java:135)
    at com.ibm.ws.runtime.component.MetaDataMgrImpl.createMetaData(MetaDataMgrImpl.java:243)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:561)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:814)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:948)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$1.run(ApplicationMgrImpl.java:1478)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:3811)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:3893)
    at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:245)

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