fix a bug where svn fails to operate properly on slaves.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@1998 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/scm/SubversionSCM.java

@@ -658,14 +658,20 @@ public class SubversionSCM extends SCM implements Serializable {
             }
         }
 
+        static { new Initializer(); }
+    }
+
+    private static final long serialVersionUID = 1L;
+
+    private static final Logger logger = Logger.getLogger(SubversionSCM.class.getName());
+
+    static { new Initializer(); }
+    
+    private static final class Initializer {
         static {
             DAVRepositoryFactory.setup();   // http, https
             SVNRepositoryFactoryImpl.setup();   // svn, svn+xxx
             FSRepositoryFactory.setup();    // file
         }
     }
-
-    private static final long serialVersionUID = 1L;
-
-    private static final Logger logger = Logger.getLogger(SubversionSCM.class.getName());
 }