JAL-1907 bugfix for NPE while parsing a features file

diff --git a/src/jalview/io/IdentifyFile.java b/src/jalview/io/IdentifyFile.java
index ff0f0cc..aec0540 100755 (executable)
--- a/src/jalview/io/IdentifyFile.java
+++ b/src/jalview/io/IdentifyFile.java
@@ -260,6 +260,10 @@ public class IdentifyFile
           {
             break;
           }
+          if (data == null)
+          {
+            break;
+          }
         }
 
         if (data.indexOf("{\"") > -1)