8003274: build-infra: Makefile changes needed for sjavac Summary: changes left in build-infra that are related to sjavac Reviewed-by: ohair, tbell Contributed-by: erik.joelsson@oracle.com, fredrik.ohrstrom@oracle.com

^build/
^dist/
nbproject/private/
^webrev
^.hgtip
^.bridge2
.DS_Store