I think I had the same issues some days ago. What helped was to delete all the 'build' or 'target' or 'out' folders - so basically all the folders with the compiled files.
Gesendet: Dienstag, 18. Januar 2022 um 15:46 Uhr Von: "Jeanette Winzenburg" <faste...@swingempire.de> An: "openjfx-dev" <openjfx-dev@openjdk.java.net> Betreff: Strange test failures: validation of PGGroup children failed Just stumbled across it while reviewing PR 719 ([1]https://github.com/openjdk/jfx/pull/716) - added the new test method to see it fail (which it does) - run all control tests throws the error below in _unrelated_ tests (the one below is from TableCellTest, that is the same test the new failing method resides in, but seeing similar in other tests that use Toolkit.firePulse) Still happens after a clean build from gradle (clean, sdk, :controls:test). Any idea what might be the reason? java.lang.AssertionError: validation of PGGroup children failed at javafx.graphics@19-internal/javafx.scene.Parent.validatePG(Parent.java: 243) at javafx.graphics@19-internal/javafx.scene.Parent.doUpdatePeer(Parent.jav a:201) at javafx.graphics@19-internal/javafx.scene.Parent$1.doUpdatePeer(Parent.j ava:109) at javafx.graphics@19-internal/com.sun.javafx.scene.ParentHelper.updatePee rImpl(ParentHelper.java:78) at javafx.graphics@19-internal/com.sun.javafx.scene.layout.RegionHelper.up datePeerImpl(RegionHelper.java:72) at javafx.graphics@19-internal/com.sun.javafx.scene.NodeHelper.updatePeer( NodeHelper.java:103) at javafx.graphics@19-internal/javafx.scene.Node.syncPeer(Node.java:715) at javafx.graphics@19-internal/javafx.scene.Scene$ScenePulseListener.syncA ll(Scene.java:2397) at javafx.graphics@19-internal/javafx.scene.Scene$ScenePulseListener.syncA ll(Scene.java:2406) at javafx.graphics@19-internal/javafx.scene.Scene$ScenePulseListener.syncA ll(Scene.java:2406) at javafx.graphics@19-internal/javafx.scene.Scene$ScenePulseListener.syncA ll(Scene.java:2406) at javafx.graphics@19-internal/javafx.scene.Scene$ScenePulseListener.synch ronizeSceneNodes(Scene.java:2373) at javafx.graphics@19-internal/javafx.scene.Scene$ScenePulseListener.pulse (Scene.java:2529) at javafx.graphics@19-internal/com.sun.javafx.tk.Toolkit.lambda$runPulse$2 (Toolkit.java:405) at java.base/java.security.AccessController.doPrivileged(AccessController. java:389) at javafx.graphics@19-internal/com.sun.javafx.tk.Toolkit.runPulse(Toolkit. java:404) at javafx.graphics@19-internal/com.sun.javafx.tk.Toolkit.firePulse(Toolkit .java:434) at test.javafx.scene.control.TableCellTest.testEditCancelEventAfterModifyI tems(TableCellTest.java:557) References 1. https://github.com/openjdk/jfx/pull/716
