From 24ee2a1a3fa25378459952670b4cf6b85173f328 Mon Sep 17 00:00:00 2001
From: Nicolas Micoud <58596990+nmicoud@users.noreply.github.com>
Date: Mon, 3 Apr 2023 10:51:51 +0200
Subject: [PATCH] IDEMPIERE-5658: NPE
 CompositeADTabbox.onTabSelectionChangedEcho (#1767)

https://idempiere.atlassian.net/browse/IDEMPIERE-5658
---
 .../src/org/adempiere/webui/adwindow/CompositeADTabbox.java     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/adwindow/CompositeADTabbox.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/adwindow/CompositeADTabbox.java
index 06fb157dfe..ec55a0f9ad 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/adwindow/CompositeADTabbox.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/adwindow/CompositeADTabbox.java
@@ -755,7 +755,7 @@ public class CompositeADTabbox extends AbstractADTabbox
 								setDetailPaneStatusMessage(msg, false);
 							}
 
-							if (selectDetailPanel.getGridTab().isTreeTab()) {
+							if (selectDetailPanel.getGridTab().isTreeTab() && selectDetailPanel.getTreePanel() != null) {
 								if (selectDetailPanel.getGridTab().getTreeDisplayedOn().equals(MTab.TREEDISPLAYEDON_MasterTab))
 									selectDetailPanel.getTreePanel().getParent().setVisible(false);
 								else