Packages 
Package Description
org.epics.util.array
Provides support for iteration and read-only references to collections and arrays of primitives, without having to code for each individual case.
org.epics.util.concurrent
Provides utility classes for concurrency.
org.epics.util.number
Provides unsigned integer types and related conversions.
org.epics.util.stats
Defines classes to handle statistical information.
org.epics.util.text
Provides utilities for test parsing.