TimeToLive (TTL) evictor WebSphere eXtreme Scale provides
a default mechanism for evicting cache entries and a plug-in for creating
custom evictors. An evictor controls the membership of entries in
each BackingMap instance.
Plug in a pluggable evictor
Since evictors are associated with BackingMaps, use the
BackingMap interface to specify the pluggable evictor.