Ok. I'm not able to repro the ClassCastException with the IBM JDK running an Oracle compilation. The IBM JDK on my Linux box is using `com.ibm.lang.management.internal.UnixExtendedOperatingSystem` which implements the `com.sun.management.OperatingSystemMXBean` interface. The JIRA reports a class cast exception from `com.ibm.lang.management.ExtendedOperatingSystem`. So, it might be an issue with the platform's implementation. I'll make the change however, and see if the original JIRA filer can confirm the fix.
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