CAS-1096: The Ticket-Collection returned by JBossCacheTicketRegistry.getTickets() method might contain Null-Objects (since they are allowed in an ArrayList). This leads to a NullPointerException in the DefaultTicketRegistryCleaner when iterating over the tickets
CAS-1096: Reset the ehcache configuration back to master, (left-over commit from incorrect branching)
Merge pull request #236 from Unicon/CAS-1096

CAS-1096: NPE in DefaultTicketRegistryCleaner due to Null-Objects in Ticket-Collection