<Swing Dev> RFR: 5015261: JInternalFrame causes NPE [v2]

[Prasanta Sadhukhan]

On Thu, 12 Aug 2021 22:31:08 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> I guess that is why we are putting up this statement, no so that user thinks twice before making it null? Should we make the field private?
>
> We cannot make it private, we can only update the spec there as well.

done

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PR: https://git.openjdk.java.net/jdk/pull/4989