The SAL module obviously covers a lot of ground. It is very useful to know where to look for information around concepts covered by the module, so the below might be of some value to the interested reader.
David Bacon, Joshua Bloch, Jeff Bogda, Cliff Click, Paul Haahr, Doug Lea, Tom May, Jan-Willem Maessen, Jeremy Manson, John D. Mitchell, Kelvin Nilsen, Bill Pugh, Emin Gun Sirer, "The "Double-Checked Locking is Broken" Declaration", University of Maryland.