RFR: 6286501: JTabbedPane throws NPE from its stateChanged listener in particular case

[Jayathirth D V]

On Thu, 8 Sep 2022 09:46:03 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> JTabbedPane throws NPE from its stateChanged listener as it tries to access uninstantiated TabbedPane.
> Fix is to use the tabPane passed to stateChangeListener so that correct tabPane is accessed.

Marked as reviewed by jdv (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/10216