Added missing JavaDoc

Change-Id: Ia2a767691869bc1bef1cbeedd3a371a8f9899387
Signed-off-by: John May <john.wilkinsonmay@gmail.com>
Added missing @cdk.githash tags

Change-Id: Icc7fbc9e989cea067059d51f70c59b73b9664d5f
Signed-off-by: John May <john.wilkinsonmay@gmail.com>