jlink - Adding module at execution time

[Alan Bateman]

On 13/03/2017 07:52, Gunnar Morling wrote:

> Thanks for your help.
>
> It was failing because I had the "--module" parameter specified before
> the "--module-path" parameter:
>
>      img/bin/java --module a/a.A --module-path modules
>
> This results in "FindException: Module a not found". It works if I
> specify the "--module-path" option first:
>
>      img/bin/java --module-path modules --module a/a.A
>
> Similarly for "--upgrade-module-path", it's ignored when specified
> after "--module".
>
> I wasn't expecting that options must be given in a specific order; is
> this intentional?
>
Yes, because any arguments after that are arguments to the application main:

$ java -help
Usage: java [options] class [args...]
            (to execute a class)
    or  java [options] -jar jarfile [args...]
            (to execute a jar file)
    or  java [options] -p <modulepath> -m <modulename>[/<mainclass>] 
[args...]
            (to execute the main class in a module)

-Alan