JAL-1746 return empty string rather than null in getStateInfo

diff --git a/src/jalview/gui/ChimeraViewFrame.java b/src/jalview/gui/ChimeraViewFrame.java
index a89af2c..7d8d97c 100644 (file)
--- a/src/jalview/gui/ChimeraViewFrame.java
+++ b/src/jalview/gui/ChimeraViewFrame.java
@@ -1225,7 +1225,7 @@ public class ChimeraViewFrame extends StructureViewerBase
   @Override
   public String getStateInfo()
   {
-    return this.chimeraSessionFile;
+    return this.chimeraSessionFile == null ? "" : chimeraSessionFile;
   }
 
   @Override