make maxSize and period final in CachingFreenetStore
make configLock final in CachingFreenetStore
change blocksByRoutingKey.size() > 0 in \!blocksByRoutingKey.isEmpty() in CachingFreenetStore
Fields should be declared at the top of the class, before any method declarations, constructors, initializers or inner classes. Fix it in CachingFreenetStore
remove useless lines in second branch in put of CachingStore and make an else instead of another if