<Swing Dev> RFR: 5015261: JInternalFrame causes NPE [v5]

[Sergey Bylokhov]

On Thu, 19 Aug 2021 16:48:46 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> JInternalFrame.getDesktopIcon() can be null as setDesktopIcon() can be called with null value. There are many places in JInternalFrame where getDesktopIcon() is accessed without null check which might cause NPE. 
>> Added null check for those cases.
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Throw NPE upfront in setter

Marked as reviewed by serb (Reviewer).

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