JBAS011006: Not installing optional component org.apache.struts.tiles.taglib in JBoss EAP 6

Issue

• Migrating our application JBoss EAP 6.x, we are seeing messages like these ClassNotFoundExceptions in our log for the following classes:

org.apache.struts.tiles.taglib.UseAttributeTag
org.apache.struts.tiles.taglib.GetAttributeTag
org.apache.struts.taglib.html.ParamTag
org.apache.struts.tiles.taglib.InsertTag
org.apache.struts.tiles.taglib.InitDefinitionsTag
org.apache.struts.tiles.taglib.PutTag
org.apache.struts.tiles.taglib.AddTag
org.apache.struts.tiles.taglib.PutListTag
org.apache.struts.tiles.taglib.GetTag
org.apache.struts.tiles.taglib.DefinitionTag
org.apache.struts.tiles.taglib.ImportAttributeTag

We are packaging struts.jar which is Apache Struts 1.1 or 1.2 and the exception is:

17:45:40,218 WARN  [org.jboss.as.ee] (MSC service thread 1-1) JBAS011006: Not installing optional component org.apache.struts.tiles.taglib.UseAttributeTag due to exception: java.lang.ClassNotFoundException: org.apache.struts.tiles.taglib.UseAttributeTag from [Module "deployment.example.war:main" from Service Module Loader]
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)
    at java.lang.Class.forName0(Native Method) [rt.jar:1.7.0]
    at java.lang.Class.forName(Unknown Source) [rt.jar:1.7.0]
    at org.jboss.as.server.deployment.reflect.DeploymentClassIndex.classIndex(DeploymentClassIndex.java:54)
    at org.jboss.as.ee.component.deployers.EEModuleConfigurationProcessor.deploy(EEModuleConfigurationProcessor.java:81) [jboss-as-ee-7.1.2.Final-redhat-1.jar:7.1.2.Final-redhat-1]
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:116)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.7.0]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.7.0]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.7.0]