8062525: JInternalFrame can't show correctly with the specical option "-esa -ea -Xcheck:jni -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel".
Reviewed-by: serb

8154213: clean up uses of boxed primitive constructors in the java.desktop module
Reviewed-by: serb, psadhukhan

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