hg: jdk/sandbox: check keys as well of a credential or possession

[xuelei.fan at oracle.com]

Changeset: fe938437f7ba
Author:    xuelei
Date:      2018-06-02 07:24 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/fe938437f7ba

check keys as well of a credential or possession

! src/java.base/share/classes/sun/security/ssl/CertificateVerify.java