8241003: Deprecate "denigrated" java.security.cert APIs that represent DNs as Principal or String objects

Reviewed-by: xuelei, valeriep, weijun

src/java.base/share/classes/sun/security/util/AnchorCertificates.java

@@ -93,7 +93,7 @@ public class AnchorCertificates {
         boolean result = certs.contains(key);
         if (result && debug != null) {
             debug.println("AnchorCertificate.contains: matched " +
-                    cert.getSubjectDN());
+                    cert.getSubjectX500Principal());
         }
         return result;
     }