8169069: Module system implementation refresh (11/2016)
Reviewed-by: plevart, chegar, psandoz, mchung, alanb, dfuchs, naoto, coffeys, weijun
Contributed-by: alan.bateman@oracle.com, mandy.chung@oracle.com, claes.redestad@oracle.com, mark.reinhold@oracle.com

8148147: Sync up @modules from jigsaw/jake
Reviewed-by: chegar, mchung

8013900: More warnings compiling jaxp.
Summary: Some internal implementation classes in Jaxp were redefining equals() without redefining hashCode(). This patch adds hashCode() methods that are consistent with equals().
Reviewed-by: chegar, joehw