RFR: Use very defensive programming in CSRCommand

Wed Feb 5 10:07:20 UTC 2020

On Wed, 5 Feb 2020 10:00:04 GMT, Erik Helin <ehelin at openjdk.org> wrote:

> Hi all,
> 
> please review this follow-up patch to 5632c91342c703d2197aad402492c3679762638e
> that uses even more defensive programming to avoid `null` pointers.
> 
> Thanks,
> Erik

This should do it!

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Marked as reviewed by rwestberg (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/397