RFR: 8021804: Certpath validation fails if validity period of root cert does not include validity period of intermediate cert

[Seán Coffey]

Looking to backport this fix to the JDK 7u code line. The code was 
refactored in JDK 8 but the change is still easily applied.
No issues with JPRT test run.

bug ID: https://bugs.openjdk.java.net/browse/JDK-8021804
webrev : http://cr.openjdk.java.net/~coffeys/webrev.8021804.7u/webrev/
JDK 8 changeset : 
http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/eafce9a617ee

regards,
Sean.