RFR: 8282526: Default icon is not painted properly

Wed Mar 16 20:59:45 UTC 2022

On Wed, 16 Mar 2022 18:56:39 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

> The problem is attempt to set it back to null causes NPE. null value means it is not set and there is no method to remove the hint.

If the default value for `KEY_INTERPOLATION` is not `VALUE_INTERPOLATION_NEAREST_NEIGHBOR`, it will be changed to a non-default value after painting the icon. Right?

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PR: https://git.openjdk.java.net/jdk/pull/7805