NPE during deployment of an exploded war, containing jar with resources ----------------------------------------------------------------------- Key: WFLY-2962 URL: https://issues.jboss.org/browse/WFLY-2962 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: Web (Undertow) Affects Versions: 8.0.0.Final, 8.0.1.Final Reporter: Alexander Nikitin Assignee: Stuart Douglas How to repeat: Scratch maven Web Application with dependency, f.e. org.primefaces:primefaces goes into: {noformat} 12:28:10,624 SEVERE [javax.enterprise.resource.webcontainer.jsf.config] (MSC service thread 1-3) Critical error during deployment: : com.sun.faces.config.ConfigurationException: java.util.concurrent.ExecutionException: java.lang.NullPointerException at com.sun.faces.config.ConfigManager.getConfigDocuments(ConfigManager.java:751) [jsf-impl-2.2.5-jbossorg-3.jar:] at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:349) [jsf-impl-2.2.5-jbossorg-3.jar:] at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:214) [jsf-impl-2.2.5-jbossorg-3.jar:] at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:173) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final] at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:187) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final] 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:1142) [rt.jar:1.8.0] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0] at java.lang.Thread.run(Thread.java:744) [rt.jar:1.8.0] Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.FutureTask.report(FutureTask.java:122) [rt.jar:1.8.0] at java.util.concurrent.FutureTask.get(FutureTask.java:192) [rt.jar:1.8.0] at com.sun.faces.config.ConfigManager.getConfigDocuments(ConfigManager.java:738) [jsf-impl-2.2.5-jbossorg-3.jar:] ... 11 more Caused by: java.lang.NullPointerException at io.undertow.servlet.spec.ServletContextImpl.getResourcePaths(ServletContextImpl.java:206) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final] at com.sun.faces.config.configprovider.WebAppFlowConfigResourceProvider.getResources(WebAppFlowConfigResourceProvider.java:79) [jsf-impl-2.2.5-jbossorg-3.jar:] at com.sun.faces.config.ConfigManager$URITask.call(ConfigManager.java:1306) [jsf-impl-2.2.5-jbossorg-3.jar:] at com.sun.faces.config.ConfigManager$URITask.call(ConfigManager.java:1275) [jsf-impl-2.2.5-jbossorg-3.jar:] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0] at com.sun.faces.config.ConfigManager.getConfigDocuments(ConfigManager.java:729) [jsf-impl-2.2.5-jbossorg-3.jar:] ... 11 more {noformat} during exploded deployment. which is caused by {noformat} org.wildfly.extension.undertow.deployment.VirtualFileResource.getResourceManagerRoot() {noformat} always returning null which is dereferenced by {noformat} io.undertow.servlet.spec.ServletContextImpl.getResourcePaths(final String path) {noformat} Patching VirtualFileResource.getResourceManagerRoot() as return new File(""); works for me, but i'm not sure about getResourceManagerRoot() contract saying that it may actually return null if the resource does not map to a file. From my point of view Resource interface should have stronger contract concerning nulls