format adapter should return AlignmentI

diff --git a/src/jalview/io/FileLoader.java b/src/jalview/io/FileLoader.java
index ab50503..27b4944 100755 (executable)
--- a/src/jalview/io/FileLoader.java
+++ b/src/jalview/io/FileLoader.java
@@ -258,7 +258,7 @@ public class FileLoader implements Runnable
         // load
       }
       loadtime = -System.currentTimeMillis();
-      Alignment al = null;
+      AlignmentI al = null;
 
       if (format.equalsIgnoreCase("Jalview"))
       {