Add @Override annotation.
A factory method for EntryRef.
Use braces to designate statement.
Add a commented out benchmark.
Whitespace.
Javadoc.
Whitespace.
Rename method length() to size().
Rename test after the renaming of method length() to size().
1. Bug fix in the LinkedList spliterator.  The characteristics were incorrect.
2. Couple of utility functions for streams.