From 0656739ccd12fbce1a4dc921cd1b474fa909c797 Mon Sep 17 00:00:00 2001
From: James <49045138+ghidracadabra@users.noreply.github.com>
Date: Tue, 5 Dec 2023 19:42:12 +0000
Subject: [PATCH] GP-4060 disable compare matching callees action in VT

---
 .../CompareFuncsFromMatchedTokensAction.java          | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Ghidra/Features/CodeCompare/src/main/java/ghidra/codecompare/CompareFuncsFromMatchedTokensAction.java b/Ghidra/Features/CodeCompare/src/main/java/ghidra/codecompare/CompareFuncsFromMatchedTokensAction.java
index b0dcbdb5fa..288c012f16 100644
--- a/Ghidra/Features/CodeCompare/src/main/java/ghidra/codecompare/CompareFuncsFromMatchedTokensAction.java
+++ b/Ghidra/Features/CodeCompare/src/main/java/ghidra/codecompare/CompareFuncsFromMatchedTokensAction.java
@@ -49,10 +49,13 @@ public class CompareFuncsFromMatchedTokensAction extends AbstractMatchedTokensAc
 			PluginTool tool) {
 		super(ACTION_NAME, tool.getName(), diffPanel, false);
 		this.tool = tool;
-		MenuData menuData = new MenuData(new String[] { ACTION_NAME }, null, MENU_GROUP);
-		setPopupMenuData(menuData);
-		setEnabled(true);
-		setHelpLocation(new HelpLocation(HELP_TOPIC, "Compare Matching Callees"));
+		FunctionComparisonService service = tool.getService(FunctionComparisonService.class);
+		if (service != null) {
+			MenuData menuData = new MenuData(new String[] { ACTION_NAME }, null, MENU_GROUP);
+			setPopupMenuData(menuData);
+			setEnabled(true);
+			setHelpLocation(new HelpLocation(HELP_TOPIC, "Compare Matching Callees"));
+		}
 	}
 
 	@Override