RFR: 8159752: Grant de-privileged module permissions by default with java.security.policy override option

[Mandy Chung]

> On Jul 15, 2016, at 4:05 AM, Sean Mullan <sean.mullan at oracle.com> wrote:
> 
> Please review this change to the default Policy provider implementation to grant de-privileged module permissions by default even when the java.security.policy override option is specified or when the Policy.getInstance API is used:
> 
> http://cr.openjdk.java.net/~mullan/webrevs/8159752/webrev.00/
> 

Thanks for addressing the `==` overriding issue.  As you replied in another mail, this patch prepares the future work to modularize java.policy for modules.

I skimmed on the patch.  The build change and java.policy and default.policy files look okay. I will leave the detailed review to the security team.

Nit: line 312-314 - an alternative is to use:
   Paths.get(System.getProperty("java.home”), “lib”, “security”, “default.policy”);

Mandy