RFR: 8154231: Simplify access to System properties from JDK code

[Wang Weijun]

This is quite convenient. We not cover the other modules?

    exports sun.security.action to
        java.desktop,
        java.security.jgss,
        jdk.crypto.pkcs11;

Thanks
Max

> On Apr 20, 2016, at 10:44 PM, Claes Redestad <claes.redestad at oracle.com> wrote:
> 
> Hello,
> 
> now that the sun.security.action package is encapsulated we can simplify internal code to get System properties.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8154231
> Webrev: http://cr.openjdk.java.net/~redestad/8154231/webrev.01/
> 
> This adds a few convenience methods to GetPropertyAction[1] and GetIntegerAction[2]. Since the code calling into this can be streamlined, this leads to a net static footprint reduction of the java.base module and a tiny startup improvement.
> 
> Thanks!
> 
> /Claes
> 
> [1] http://cr.openjdk.java.net/~redestad/8154231/webrev.01/src/java.base/share/classes/sun/security/action/GetPropertyAction.java.udiff.html
> [2] http://cr.openjdk.java.net/~redestad/8154231/webrev.01/src/java.base/share/classes/sun/security/action/GetIntegerAction.java.udiff.html