hg: jdk/sandbox: 8239094: PKCS#9 ChallengePassword attribute does not allow for the UTF8String type

[chris.hegarty at oracle.com]

Changeset: 0bd237b74e70
Author:    jnimeh
Date:      2020-02-19 13:36 -0800
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/0bd237b74e70

8239094: PKCS#9 ChallengePassword attribute does not allow for the UTF8String type
Reviewed-by: xuelei

! src/java.base/share/classes/sun/security/pkcs/PKCS9Attribute.java
+ test/jdk/sun/security/pkcs/pkcs9/ChallengePassStringFmt.java