Module org.jboss.log4j.logmanager Missing Dependency On Module javax.mail.api

Issue

• Unable to deploy the application and getting below error in server.log file, which seems to indicate that module org.jboss.log4j.logmanager has a dependency on javax.mail.* classes:

13:20:18,105 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-6) MSC000001: Failed to start service jboss.deployment.unit."Sample.ear".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."Sample.ear".POST_MODULE: JBAS018733: Failed to process phase POST_MODULE of deployment "Sample.ear"
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:123) [jboss-as-server-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA-redhat-2.jar:1.0.2.GA-redhat-2]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA-redhat-2.jar:1.0.2.GA-redhat-2]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_15]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_15]
    at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_15]
Caused by: java.lang.NoClassDefFoundError: javax/mail/internet/AddressException
    at java.lang.Class.getDeclaredConstructors0(Native Method) [rt.jar:1.7.0_15]
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413) [rt.jar:1.7.0_15]
    at java.lang.Class.getConstructor0(Class.java:2723) [rt.jar:1.7.0_15]
    at java.lang.Class.newInstance0(Class.java:345) [rt.jar:1.7.0_15]
    at java.lang.Class.newInstance(Class.java:327) [rt.jar:1.7.0_15]
    at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:336)
    at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:123)
    at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:752)
    at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:735)
    at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:615)
    at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:502)
    at org.jboss.as.logging.LoggingConfigurationProcessor.deploy(LoggingConfigurationProcessor.java:115)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:116) [jboss-as-server-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
    ... 5 more
Caused by: java.lang.ClassNotFoundException: javax.mail.internet.AddressException from [Module "org.jboss.log4j.logmanager:main" from local module loader @192328ef (roots: C:\sample\jboss\modules)]
    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)

• SMTP adapter works in earlier versions of Jboss EAP 4 and 5 but fails in EAP 6 with above error message.