Packages
edu.emory.mathcs.backport.java.util  
edu.emory.mathcs.backport.java.util.concurrent Utility classes commonly useful in concurrent programming.
edu.emory.mathcs.backport.java.util.concurrent.atomic Atomics A small toolkit of classes that support lock-free thread-safe programming on single variables.
edu.emory.mathcs.backport.java.util.concurrent.helpers Auxiliary and helper classes for backport.util.concurrent, NOT present in java.util.concurrent.
edu.emory.mathcs.backport.java.util.concurrent.locks Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.