8170484: Miscellaneous changes imported from jsr166 CVS 2016-12Reviewed-by: martin, smarks, psandoz
8166646: Miscellaneous changes imported from jsr166 CVS 2016-10Reviewed-by: martin, smarks, psandoz
8146467: Integrate JSR 166 jck tests into JDK repoReviewed-by: martin, psandoz, chegar, fyuan, jjg