featureGroups not null

diff --git a/src/jalview/gui/FeatureRenderer.java b/src/jalview/gui/FeatureRenderer.java
index 178dc38..4c4be5c 100755 (executable)
--- a/src/jalview/gui/FeatureRenderer.java
+++ b/src/jalview/gui/FeatureRenderer.java
@@ -49,7 +49,7 @@ public class FeatureRenderer
 
   // A higher level for grouping features of a
   // particular type
-  Hashtable featureGroups = null;
+  Hashtable featureGroups = new Hashtable();
 
   // This is actually an Integer held in the hashtable,
   // Retrieved using the key feature type
@@ -455,6 +455,7 @@ public class FeatureRenderer
       {
         if (!av.featuresDisplayed.containsKey(features[index].getType()))
         {
+
           if(featureGroups.containsKey(features[index].getType()))
           {
             boolean visible = ( (Boolean) featureGroups.get(