hg: jdk9/hs/jdk: 8162702: com.sun.management.internal.GcInfoBuilder.getPoolNames should not return reference of it's private member

[dmitry.samersoff at oracle.com]

Changeset: 8f1d366691a2
Author:    dsamersoff
Date:      2016-08-01 15:27 +0300
URL:       http://hg.openjdk.java.net/jdk9/hs/jdk/rev/8f1d366691a2

8162702: com.sun.management.internal.GcInfoBuilder.getPoolNames should not return reference of it's private member
Summary: return clone of array
Reviewed-by: dholmes, hb, dsamersoff
Contributed-by: amit.sapre at oracle.com

! src/jdk.management/share/classes/com/sun/management/internal/GcInfoBuilder.java