Merge

8138838: docs cleanup for java.desktop
Summary: docs cleanup for java.desktop
Reviewed-by: serb

8136494: Update "@since 1.9" to "@since 9" to match java.version.specification
Reviewed-by: alanb, chegar, lancea, prr

8030123: java/beans/Introspector/Test8027648.java fails
Reviewed-by: serb, alexsch
Contributed-by: Nicholas Cull <run2000@gmail.com>

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com