Review 8035808: Eliminate dependency to GetPropertyAction and other sun.security.action convenient classes

[Mandy Chung]

Webrev:
http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8035808/webrev.00/

This patch converts the use of sun.security.action.GetPropertyAction 
tolambda
        (PrivilegedAction<String>) () -> System.getProperty(key)

Similarly for GetIntegerAction and GetLongAction.

The sun.security.action.* classes are just convenient classes that are 
used not only by the security library but also used by RMI, management, 
a couple other components that cause cross-module dependency that are 
not absolutely necessary.  They can simply be replaced to call 
System.getProperty, Integer.getInteger, or Long.getLong at the callsite.

Mandy