RFR: JDK-8015739: Background of JInternalFrame is located out of JInternalFrame [v2]

[Harshitha Onkar]

On Wed, 28 Sep 2022 15:17:11 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> @azuev-java Tested FrameBorder and DialogBorder, they have a similar problem to JInternalFrameBorder (border scaling issue). I have created a new JBS issue - **[JDK-8294484](https://bugs.openjdk.org/browse/JDK-8294484)** to track Frame and Dialog Borders of Metal LAF as there is a plan to create a common utility method and refactor the common steps.
>
> Thank you, @honkar-jdk. Once the border handling is unified, fixing `FrameBorder` and `DialogBorder` will be easier and code duplication will be avoided.

Refactoring to create a common utility method is being tracked by - [JDK-8294680](https://bugs.openjdk.org/browse/JDK-8294680)

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PR: https://git.openjdk.org/jdk/pull/10274