X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FAppletFormatAdapter.java;h=7dc263bdf6261ec8e148bacf7bba6000c82b66ca;hb=2526066acdc3faf3a178e50672c78e428287e9ef;hp=90400f421547f8ca45e8b20134c1b28e2c06e1f5;hpb=3f3c6c3a2b99fee2e726d18302af1b3320331212;p=jalview.git

diff --git a/src/jalview/io/AppletFormatAdapter.java b/src/jalview/io/AppletFormatAdapter.java
index 90400f4..7dc263b 100755
--- a/src/jalview/io/AppletFormatAdapter.java
+++ b/src/jalview/io/AppletFormatAdapter.java
@@ -29,6 +29,7 @@ import jalview.datamodel.AlignmentView;
 import jalview.util.MessageManager;
 
 import java.io.File;
+import java.io.IOException;
 import java.io.InputStream;
 import java.util.List;
 
@@ -205,6 +206,10 @@ public class AppletFormatAdapter
   public static final boolean isValidFormat(String format,
           boolean forwriting)
   {
+    if (format == null)
+    {
+      return false;
+    }
     boolean valid = false;
     String[] format_list = (forwriting) ? WRITEABLE_FORMATS
             : READABLE_FORMATS;
@@ -339,7 +344,10 @@ public class AppletFormatAdapter
           ex.printStackTrace();
         }
       }
-
+      if (format.equalsIgnoreCase("HTML"))
+      {
+        throw new IOException(e.getMessage());
+      }
       // If we get to this stage, the format was not supported
       throw new java.io.IOException(SUPPORTED_FORMATS);
     }