Index: C:/workspaces/subclipse-trunk/JavaHL-trunk/src/org/tigris/subversion/javahl/SVNClient.java
===================================================================
--- C:/workspaces/subclipse-trunk/JavaHL-trunk/src/org/tigris/subversion/javahl/SVNClient.java	(revision 20869)
+++ C:/workspaces/subclipse-trunk/JavaHL-trunk/src/org/tigris/subversion/javahl/SVNClient.java	(working copy)
@@ -45,7 +45,9 @@
         // Ensure that Subversion's config file area and templates exist.
         try
         {
-            setConfigDirectory(null);
+            // passing empty string instead of null prevents earlier
+            // versions of library from crashing
+            setConfigDirectory("");
         }
         catch (ClientException suppressed)
         {