Close the session - closing closeable objects and persisting persistent
ones.
closeAll() -
Static method in class com.marringtons.util.Cache
If some caches hold critical data that needs to be preserved, either close the specific cache with close() or close all caches
before stopping the program.
Every library requires a catch-all packages for classes that cannot be
easily grouped elsewhere - and here it is - caches, maps, semaphores, sessions,
threads and much more.