Transliteration of the iterator template in google collections.
A scheduler for running jobs in the background TODO: ScheduledThreadPoolExecutor notriously swallows exceptions
A generic range value with a start and end
A class to measure and throttle the rate of some process.
A mockable interface for time functions
Indicates that the annotated class is immutable
Indicates that the annotated class is not threadsafe
Indicates that the annotated class is meant to be threadsafe.
The normal system implementation of time functions
Some common constants
A utility that updates the offset of every broker partition to the offset of latest log segment file, in ZK.
Helper functions!