Replace Integer with Item class

split jdk9 Atomic tests into separate *9Test.java files

Add VarHandle atomic methods to Atomic classes

prefer do {} while (...); to while (...);

prefer assertNotSame, assertNotNull to assertTrue

fix order of arguments to assert(Equals|Same) methods

use serialClone in serialization tests; update imports

Update Creative Commons license URL in legal notices

use stricter assertions, e.g. assertSame

untabify

nicer exception handling

whitespace

Add tests for AtomicX.lazySet

Tests for toString methods

Headers reference Creative Commons

Documentation scaffolding

Added serialization and lock tests