hg: jdk/sandbox: 8225180: SignedObject with invalid Key not throwing the InvalidKeyException in Windows

[chris.hegarty at oracle.com]

Changeset: 22b3b7983ada
Author:    weijun
Date:      2019-06-13 23:53 +0800
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/22b3b7983ada

8225180: SignedObject with invalid Key not throwing the InvalidKeyException in Windows
Reviewed-by: mullan

! src/jdk.crypto.mscapi/windows/classes/sun/security/mscapi/CSignature.java
+ test/jdk/sun/security/mscapi/NullKey.java