X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FBackupFiles.java;h=71b31a705a4674433b09d66a617a644b164287f4;hb=3c2d7328e3d4d086c0649b88102de8da259ffb6c;hp=e913fbc3d4533af3dbdd83dcb4d1508e2c8b21d8;hpb=6db15a0553c0323a33121baad6d23ac9d8d4250b;p=jalview.git

diff --git a/src/jalview/io/BackupFiles.java b/src/jalview/io/BackupFiles.java
index e913fbc..71b31a7 100644
--- a/src/jalview/io/BackupFiles.java
+++ b/src/jalview/io/BackupFiles.java
@@ -93,7 +93,7 @@ public class BackupFiles
   // REVERSE_ORDER
   public BackupFiles(File file)
   {
-    this(file, ".v" + NUM_PLACEHOLDER, false, 4, 3, false);
+    this(file, ".bak" + NUM_PLACEHOLDER, false, 3, 3, false);
   }
 
   public BackupFiles(File file, String defaultSuffix, boolean defaultNoMax,
@@ -208,15 +208,15 @@ public class BackupFiles
   public boolean rollBackupFiles()
   {
 
-    // file doesn't yet exist or backups are not enabled
-    if ((!file.exists()) || (!enabled) || (max < 0))
+    // file doesn't yet exist or backups are not enabled or template is null or
+    // empty
+    if ((!file.exists()) || (!enabled) || max < 0 || suffix == null
+            || suffix.length() == 0)
     {
       // nothing to do
       return true;
     }
 
-    // split filename up to insert suffix template in the right place. template
-    // and backupMax can be set in .jalview_properties
     String dir = "";
     File dirFile;
     try