Qualified exports to an unknown module

[Alan Bateman]

On 07/12/2018 18:59, Alex Buckley wrote:
>
> The decision was: Qualified exports/opens to a non-observable module 
> is NOT an error (see 
> https://docs.oracle.com/javase/specs/jls/se11/html/jls-7.html#jls-7.7.2-310). 
> javac will give an on-by-default lint warning instead.
>
> The StackOverflow question says "Because I configured the compiler to 
> treat warnings as errors (-Werror), the build fails." so the 
> questioner should look at disabling the lint warning (see 
> https://docs.oracle.com/en/java/javase/11/tools/javac.html#GUID-AEEC9F07-CB49-4E96-8BC7-BCC2C7F725C9).
The scenario in the post seems to be a Maven multi-module project so an 
alternative to -Xlint:-module is to compile with --module-source-path so 
that module B is observable when compiling A. This should work:
     javac --module-source-path project/"*"/src/main/java -d <output> -m A

although I don't know if the Maven compiler plugin can be configured to 
use this option/syntax.

-Alan