X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FJalviewFileView.java;h=52d130c3bf69643f355caf1c1a26f41aa98b8a57;hb=d360dff412aba57c53f05b2d75eec53678cdcd80;hp=857d0432b1589975c58d77014ec4623d3075a9d0;hpb=5ac664f47c4da867bdbc2f7376e5079a97b74b20;p=jalview.git

diff --git a/src/jalview/io/JalviewFileView.java b/src/jalview/io/JalviewFileView.java
index 857d043..52d130c 100755
--- a/src/jalview/io/JalviewFileView.java
+++ b/src/jalview/io/JalviewFileView.java
@@ -94,9 +94,16 @@ public class JalviewFileView extends FileView
     if (type == null)
     {
       Iterator<String> it = extensions.keySet().iterator();
-      while (it.hasNext())
+      EXTENSION: while (it.hasNext())
       {
         String ext = it.next();
+
+        // quick negative test
+        if (!f.getName().contains(ext))
+        {
+          continue EXTENSION;
+        }
+
         BackupFilenameParts bfp = BackupFilenameParts
                 .currentBackupFilenameParts(f.getName(), ext, true);
         if (bfp.isBackupFile())