[9] rfr 8034031: [parfait] JNI exception pending in jdk/src/macosx/native/apple/security/KeystoreImpl.m

[Vincent Ryan]

Please review this fix to check for pending exceptions in JNI:

Bug: https://bugs.openjdk.java.net/browse/JDK-8034031
Webrev: http://cr.openjdk.java.net/~vinnie/8034031/webrev.00/

Thanks.