Fixed: Exception on FFDec start when simple editor is on

CHANGELOG.md

@@ -41,6 +41,7 @@ All notable changes to this project will be documented in this file.
 - [#2447] SVG import - gradients can inherit (href) from other gradient types (radial vs linear)
 - [#2450] Morphshape replace button/menu is not working (throws exception due to missing icon)
 - [#2355] AS1/2 Simplify expressions feature colliding with some other features like hex values
+- Exception on FFDec start when simple editor is on
 
 ## [22.0.2] - 2025-01-17
 ### Added

src/com/jpexs/decompiler/flash/gui/QuickTreeFilterPanel.java

@@ -113,7 +113,11 @@ public class QuickTreeFilterPanel extends JPanel implements QuickTreeFilterInter
         foldersPanel.setSize(new Dimension(getParent().getWidth(), 47));
         
         labelToFolder.clear();
-        foldersList = ((TagTreeModel) tagTree.getFullModel()).getAvailableFolders();
+        TagTreeModel model = (TagTreeModel) tagTree.getFullModel();
+        if (model == null) { // When switched to Simple editor for example
+            return;
+        }
+        foldersList = model.getAvailableFolders();
         for (String f : foldersList) {
             String icon = "folder" + f.toLowerCase(Locale.ENGLISH) + "16";
             if (f.equals("header")) {