"Error: Group is invalid" if there are non-existing directories

[Wang Weijun]

> On Aug 27, 2015, at 12:28 AM, Jonathan Gibbons <jonathan.gibbons at oracle.com> wrote:
> 
> It is hard to distinguish between mistyped pathnames and deliberately-missing directories, and I would prefer to go with the more generally useful case of catching mistyped pathnames.

I see.

> 
> Do you really need to remove tests?   Surely there are enough selection mechanisms in jtreg for you to select the tests you want? If you're prepared to "hack" the repo by removing files, why not just add in a temporary group called "my_tests" instead?

OK. Or I can just hack the definition of jdk_security4 itself. Ever since JPRT does not recognize -rtests I have to use -otests.

—Max