8150668: Layer.defineModulesXXX with a Configuration containing java.base throws undocumented exception

[Chris Hegarty]

> On 25 May 2016, at 12:09, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> This is another small fix where the Layer javadoc doesn't make it clear that there can only be one "java.base" module in the VM. The enforcement has been there but it wasn't specified and there weren't tests for this scenario.
>    http://cr.openjdk.java.net/~alanb/8150668/webrev/

This looks fine.

-Chris.