Thanks Chris and Michael for the reviews/help so far. I've uploaded a new webrev to address most of their points here: http://cr.openjdk.java.net/~alanb/8221481/2/webrev/index.html and delta webrev with the changes from 1 to 2 here: http://cr.openjdk.java.net/~alanb/8221481/1to2/webrev/index.html -Alan