X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FJalviewFileFilter.java;h=bc20342411989ab165db672f9462cfd5a7e77b9a;hb=d360dff412aba57c53f05b2d75eec53678cdcd80;hp=8c6b8021f681402b3b912acea47ed650ba57cba9;hpb=5ac664f47c4da867bdbc2f7376e5079a97b74b20;p=jalview.git

diff --git a/src/jalview/io/JalviewFileFilter.java b/src/jalview/io/JalviewFileFilter.java
index 8c6b802..bc20342 100755
--- a/src/jalview/io/JalviewFileFilter.java
+++ b/src/jalview/io/JalviewFileFilter.java
@@ -103,10 +103,16 @@ public class JalviewFileFilter extends FileFilter
     if (parentJFC != null && parentJFC.includeBackupFiles)
     {
       Iterator<String> it = filters.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())