git: openjdk/jdk: jdk25: 8358526: Clarify behavior of java.awt.HeadlessException constructed with no-args

[Phil Race]

Changeset: fe9efb75
Branch: jdk25
Author:    Phil Race <prr at openjdk.org>
Date:      2025-06-23 17:05:48 +0000
URL:       https://git.openjdk.org/jdk/commit/fe9efb75b0521ea3eeadcbf4a80fa8797226344f

8358526: Clarify behavior of java.awt.HeadlessException constructed with no-args

Reviewed-by: honkar, tr, azvegint
Backport-of: 81985d422d3a433c1248deec18e4fd9b9f780c2c

! src/java.desktop/share/classes/java/awt/HeadlessException.java
+ test/jdk/java/awt/Headless/HeadlessExceptionTest.java