git: openjdk/jdk21u-dev: master: 3 new changesets

[Goetz Lindenmaier]

Changeset: 0f6ee761
Branch: master
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2025-04-02 09:47:55 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/0f6ee761c14999601db4570e8f87e332e06b995c

8328484: Convert and Opensource few JFileChooser applet test to main

Backport-of: 528efe206d5ee3775b01f3b90600ca3cab6c96f0

+ test/jdk/javax/swing/JFileChooser/EnterEmptyDirectory.java
+ test/jdk/javax/swing/JFileChooser/FileSelectionTests.java
+ test/jdk/javax/swing/JFileChooser/ShowHiddenFiles.java

Changeset: bc269de4
Branch: master
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2025-04-02 09:49:20 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/bc269de452ba2c6072529c3201059b2039210238

8339148: Make os::Linux::active_processor_count() public

Backport-of: 12d060a255b9b783488714c6c2cb73a899d3f708

! src/hotspot/os/linux/os_linux.hpp

Changeset: 883400f1
Branch: master
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2025-04-02 09:50:48 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/883400f1c1f96730dce290d25b5e058b8993fa67

8339639: Opensource few AWT PopupMenu tests

Backport-of: a0794e0a054c5e7ed051efa6362726cdd7598255

! test/jdk/ProblemList.txt
+ test/jdk/java/awt/PopupMenu/PopupHangTest.java
+ test/jdk/java/awt/PopupMenu/PopupMenuVisuals.java