git: openjdk/jdk: 6391806: JLabel and AbstractButton's imageUpdate method should be better specified

[Prasanta Sadhukhan]

Changeset: 3677b55b
Author:    Abhishek Kumar <abhishek.cx.kumar at oracle.com>
Committer: Prasanta Sadhukhan <psadhukhan at openjdk.org>
Date:      2022-08-09 12:27:05 +0000
URL:       https://git.openjdk.org/jdk/commit/3677b55b45746c3c955a8fcf1fbbf15694baa873

6391806: JLabel and AbstractButton's imageUpdate method should be better specified

Reviewed-by: psadhukhan, prr

! src/java.desktop/share/classes/javax/swing/AbstractButton.java
! src/java.desktop/share/classes/javax/swing/JLabel.java