RFR: 8318113: CSS.BackgroundImage doesn't implement equals

[Sergey Bylokhov]

On Fri, 10 Nov 2023 13:50:27 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> CSSBackgroundImage.equals() is implemented

src/java.desktop/share/classes/javax/swing/text/html/CSS.java line 2971:

> 2969:         @Override
> 2970:         public int hashCode() {
> 2971:             return (this.svalue != null) ? this.svalue.hashCode() : 0;

This change look fine, but this line can be simplified by the Objects.hashCode();

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PR Review Comment: https://git.openjdk.org/jdk/pull/16613#discussion_r1389926424