8168935: sun/security/ssl/SSLContextImpl/TrustTrustedCert.java failed Intermittently
Summary: TrustTrustedCert.java uses SSLSocketTemplate to avoid timeout failure
Reviewed-by: xuelei
Contributed-by: John Jiang <sha.jiang@oracle.com>

8164846: CertificateException missing cause of underlying exception
Reviewed-by: xuelei

8144773: Further reduce use of MD5
Reviewed-by: mullan, wetmore, jnimeh, ahgross

8032473: Restructure JSSE regression test hierarchy in jdk test
Reviewed-by: weijun