RFR: 8361521 : BogusFocusableWindowState.java fails with StackOverflowError on Linux

[Anass Baya]

On Tue, 15 Jul 2025 02:52:54 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> I do not think this is a bug in the test, the jdk should survive this.

Hello @mrserb, 
Thank you for your reivew.
To ensure Linux survives that, I think we need to avoid updating focusability when it is not necessary.

--- XWindowPeer.java
+++ XWindowPeer.java
     @Override
     public void setVisible(boolean vis) {
+        if(isVisible() == vis) {
+            return;
+        }

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PR Comment: https://git.openjdk.org/jdk/pull/26298#issuecomment-3140169438