Migration Guide section about unsupported Security Thorntail fraction on XP and Bootable Jar

Existing deprecated components including PicketBox is not supported in EAP XP and bootable Jar. There won’t be a matched galleon layer for the security Thorntail fraction.
 
Any configuration done by the users based on the configuration properties exposed by this security TT fraction, see TT security fraction,  or any CLI script that relies on the security subsystem won’t be supported on EAP XP and bootable jar contexts.
 
The users should follow the Migrating to Elytron chapter on the "Thorntail to EAP XP Migration Guide” to solve the configuration issues.