git: openjdk/jdk18: 8278744: KeyStore:getAttributes() not returning unmodifiable Set

[Weijun Wang]

Changeset: 0cc989b7
Author:    Weijun Wang <weijun at openjdk.org>
Date:      2021-12-14 18:39:22 +0000
URL:       https://git.openjdk.java.net/jdk18/commit/0cc989b7d2fa3b903d71b7baab53b853455005ba

8278744: KeyStore:getAttributes() not returning unmodifiable Set

Reviewed-by: mullan

! src/java.base/share/classes/sun/security/pkcs12/PKCS12KeyStore.java
+ test/jdk/java/security/KeyStore/PKCS12/UnmodifiableAttributes.java