Initialize the module system model even in presence of missing/broken module-infos; BadClassFiles should not immediatelly abort compilation anymore, but should be handled as if the classfile did not exist.
Reviewed-by: jjg
--release 9 should only allow documented modules; --add-exports/--add-reads/--patch-module should not be allowed on system modules when --release 9 is used.
Reviewed-by: jjg, erikj, ihse
Adding a new javac option for compiling for JDK N: -release N; including history data for previous version of JDK.
Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com>
Co-authored-by: Jonathan Gibbons <jonathan.gibbons@oracle.com>
Reviewed-by: erikj, ihse, jjg, mcimadamore, mr
