Fixed failing tests

src/main/java/org/jabref/gui/groups/GroupTreeView.java

@@ -11,6 +11,7 @@
 
 import javax.inject.Inject;
 
+import javafx.application.Platform;
 import javafx.beans.property.ObjectProperty;
 import javafx.css.PseudoClass;
 import javafx.fxml.FXML;
@@ -84,12 +85,13 @@ public void initialize() {
  dragExpansionHandler = new DragExpansionHandler();
 
  // Set-up bindings
- BindingsHelper.bindContentBidirectional(
- groupTree.getSelectionModel().getSelectedItems(),
- viewModel.selectedGroupsProperty(),
- (newSelectedGroups) -> newSelectedGroups.forEach(this::selectNode),
- this::updateSelection
- );
+ Platform.runLater(() ->
+ BindingsHelper.bindContentBidirectional(
+ groupTree.getSelectionModel().getSelectedItems(),
+ viewModel.selectedGroupsProperty(),
+ (newSelectedGroups) -> newSelectedGroups.forEach(this::selectNode),
+ this::updateSelection
+ ));
 
  // We try to to prevent publishing changes in the search field directly to the search task that takes some time
  // for larger group structures.