[ https://issues.jboss.org/browse/WFLY-11722?page=com.atlassian.jira.plugin... ] Chao Wang commented on WFLY-11722: ---------------------------------- {quote}However, no exception is logged in the output on WildFly.{quote} Following your steps, I see this error on WFLY 15.0.1.Final server side: {noformat} 14:03:02,054 ERROR [io.undertow.request] (default task-1) UT005071: Undertow request failed HttpServerExchange{ GET /folder/ request {Connection=[keep-alive], Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8], Accept-Language=[en-US,en;q=0.9,zh-CN;q=0.8,zh;q=0.7], Accept-Encoding=[gzip, deflate, br], User-Agent=[Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36], Upgrade-Insecure-Requests=[1], Host=[127.0.0.1:8080]} response {}}: java.lang.RuntimeException: java.nio.file.NoSuchFileException: /home/wangc/software/wildfly/15/wildfly-15.0.1.Final/welcome-content/folder/bad at io.undertow.core@2.0.15.Final//io.undertow.server.handlers.resource.PathResource.getLastModified(PathResource.java:62) at io.undertow.core@2.0.15.Final//io.undertow.server.handlers.resource.DirectoryUtils.renderDirectoryListing(DirectoryUtils.java:139) at io.undertow.core@2.0.15.Final//io.undertow.server.handlers.resource.DirectoryUtils.renderDirectoryListing(DirectoryUtils.java:162) at io.undertow.core@2.0.15.Final//io.undertow.server.handlers.resource.ResourceHandler$1.handleRequest(ResourceHandler.java:233) at io.undertow.core@2.0.15.Final//io.undertow.server.Connectors.executeRootHandler(Connectors.java:360) at io.undertow.core@2.0.15.Final//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) at org.jboss.threads@2.3.2.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at org.jboss.threads@2.3.2.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985) at org.jboss.threads@2.3.2.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487) at org.jboss.threads@2.3.2.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1349) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.nio.file.NoSuchFileException: /home/wangc/software/wildfly/15/wildfly-15.0.1.Final/welcome-content/folder/bad at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:92) at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111) at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116) at java.base/sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55) at java.base/sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:145) at java.base/sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:99) at java.base/java.nio.file.Files.readAttributes(Files.java:1763) at java.base/java.nio.file.Files.getLastModifiedTime(Files.java:2314) at io.undertow.core@2.0.15.Final//io.undertow.server.handlers.resource.PathResource.getLastModified(PathResource.java:60) ... 10 more {noformat} The error is clear to me as the NoSuchFileException indicates that it tried to get last modified time from non-existent path. -- This message was sent by Atlassian Jira (v7.12.1#712002)