experimenting to enable subtyping

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@10232 71c3de6d-444a-0410-be80-ed276b4c234a

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

@@ -796,7 +796,7 @@ public class SubversionSCM extends SCM implements Serializable {
         return tokens[tokens.length-1]; // return the last token
     }
 
-    public static final class DescriptorImpl extends SCMDescriptor<SubversionSCM> {
+    public static class DescriptorImpl extends SCMDescriptor<SubversionSCM> {
         public static final DescriptorImpl DESCRIPTOR = new DescriptorImpl();
 
         /**
@@ -1012,6 +1012,10 @@ public class SubversionSCM extends SCM implements Serializable {
             load();
         }
 
+        protected DescriptorImpl(Class clazz, Class<? extends RepositoryBrowser> repositoryBrowser) {
+            super(clazz,repositoryBrowser);
+        }
+
         public String getDisplayName() {
             return "Subversion";
         }