RFR: 8161448: 4 JNI exception pending defect groups in DiagnosticCommandImpl.c

[Harsha Wardhana B]

Hello All,

Please review the below parfait fixes for DiagnosticCommandImpl.c

Issue : https://bugs.openjdk.java.net/browse/JDK-8161448

webrev : http://cr.openjdk.java.net/~hb/8161448/webrev.00/

Regards

Harsha