From a22f6772e695b22a8320c49f6c130cc416af3bd4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9my=20Bouquet?= <bouquet@dinbs-MacBook-Pro-2.local>
Date: Sat, 18 Jul 2015 21:49:27 +0200
Subject: [PATCH] fixed a NPE in the shader node editor when the navigator
 panel is collapsed

---
 .../gde/materialdefinition/editor/MatDefEditorlElement.java  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/MatDefEditorlElement.java b/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/MatDefEditorlElement.java
index 762b24ef5..42fbba18b 100644
--- a/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/MatDefEditorlElement.java
+++ b/sdk/jme3-materialeditor/src/com/jme3/gde/materialdefinition/editor/MatDefEditorlElement.java
@@ -272,6 +272,11 @@ public final class MatDefEditorlElement extends JPanel implements MultiViewEleme
 
     protected void selectionChanged(Selectable selectable) {
         MatDefNavigatorPanel nav = obj.getLookup().lookup(MatDefNavigatorPanel.class);
+        //It's possible that the navigator is null if it's collapsed in the ui.
+        //In that case we early return to avoid further issues
+        if(nav == null){
+            return;
+        }
         try {
             Node n = findNode(nav.getExplorerManager().getRootContext(), selectable.getKey());
             if (n == null) {