From a04a7992b1055fa52f5031ef9d10d2228ee78899 Mon Sep 17 00:00:00 2001
From: James Procter <j.procter@dundee.ac.uk>
Date: Mon, 23 Oct 2023 09:25:34 +0100
Subject: [PATCH] JAL-4090 defensive check for featureSettings redraws when
 feature filter attrbute is null (noticed whilst testing)

---
 src/jalview/gui/FeatureSettings.java |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/jalview/gui/FeatureSettings.java b/src/jalview/gui/FeatureSettings.java
index 184fdc5..4d31805 100644
--- a/src/jalview/gui/FeatureSettings.java
+++ b/src/jalview/gui/FeatureSettings.java
@@ -1787,11 +1787,15 @@ public class FeatureSettings extends JPanel
     {
       FeatureMatcherSetI theFilter = (FeatureMatcherSetI) filter;
       setOpaque(true);
-      String asText = theFilter.toString();
       setBackground(tbl.getBackground());
-      this.setText(asText);
       this.setIcon(null);
 
+      if (theFilter != null)
+      {
+        String asText = theFilter.toString();
+        this.setText(asText);
+      }
+
       if (isSelected)
       {
         if (selectedBorder == null)
-- 
1.7.10.2