Deployment error caused by missing java.security.acl.Group on Java 15 --------------------------------------------------------------------- Key: WFLY-14253 URL: https://issues.redhat.com/browse/WFLY-14253 Project: WildFly Issue Type: Bug Components: CDI / Weld, EE Affects Versions: 21.0.1.Final Reporter: Steve Brooksbank Assignee: Matěj Novotný Priority: Major Attachments: SecurityTestWildfly.zip I'm getting the following error when trying to deploy a simple application that includes Container-based authentication based on the EE8 Security functionality, when WiIldfly is running on Java 15 VM: {code:java} 23:28:59,162 INFO [org.glassfish.soteria.cdi.CdiExtension] (MSC service thread 1-5) Activating javax.security.enterprise.authentication.mechanism.http.CustomFormAuthenticationMechanismDefinition authentication mechanism from com.brooksbank.weldexamples.security.ApplicationConfig class 23:28:59,822 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-8) MSC000001: Failed to start service jboss.deployment.unit."weldExamples-1.0.war".undertow-deployment.UndertowDeploymentInfoService: org.jboss.msc.service.StartException in service jboss.deployment.unit."weldExamples-1.0.war".undertow-deployment.UndertowDeploymentInfoService: Failed to start service at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1731) at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559) at org.jboss.threads@2.4.0.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990) at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486) at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1363) at java.base/java.lang.Thread.run(Thread.java:832) Caused by: java.lang.NoClassDefFoundError: java/security/acl/Group at org.wildfly.extension.undertow@21.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService.handleJASPIMechanism(UndertowDeploymentInfoService.java:475) at org.wildfly.extension.undertow@21.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService.start(UndertowDeploymentInfoService.java:284) at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739) at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701) ... 6 more Caused by: java.lang.ClassNotFoundException: java.security.acl.Group from [Module "org.wildfly.extension.undertow" version 21.0.1.Final from local module loader @6187d1f5 (finder: local module finder @2445445a (roots: C:\Wildfly\wildfly-21.0.1.Final\modules,C:\Wildfly\wildfly-21.0.1.Final\modules\system\layers\base))] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:255) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:410) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116) ... 10 more{code} The problem DOESN'T occur if Wildfly is running on Java 11 VM. The issue appears to be indirectly related to https://issues.redhat.com/browse/WFCORE-4592 as the ACL module was removed from Java14, but still seems to be needed.