Please revert the change, which introduced path "EAP_HOME/modules/system/layers/base" instead of "EAP_HOME/modules" in Admin Guide for EAP 6.3. (Replace also "EAP_HOME/modules/system/layers/base/com/mysql/main/" with "EAP_HOME/modules/com/mysql/main/") The "Module Organization on the Filesystem" in document "Layered Distributions and Module Path Organization" [1] says: The system level exists to separate modules associated with the distribution base, layered distribution or add-ons from those the end user may store in the modules directory. (Note: in earlier versions of this document, "internal" was used instead of "system" with a request for suggestions of something better.) The Admin Guide for EAP 6.2 use the correct location ("EAP_HOME/modules/") [2] [1] https://community.jboss.org/wiki/LayeredDistributionsAndModulePathOrganization [2] https://access.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/6.2/html/Administration_and_Configuration_Guide/Install_a_JDBC_Driver_as_a_Core_Module1.html
Modified the following topics: Install a JDBC Driver as a Core Module [8849] Install a JDBC Driver as a Core Module [26833]
This can be verified here: http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/6.3/html-single/Administration_and_Configuration_Guide/index.html#Install_a_JDBC_Driver_as_a_Core_Module1
Verified on EAP 6.3.0.ER7, doc Revision 6.3.0-24