diff -Nur -x '*.orig' -x '*~' excalibur-logkit-2.0/src/java/org/apache/log/output/db/DefaultDataSource.java excalibur-logkit-2.0.new/src/java/org/apache/log/output/db/DefaultDataSource.java
--- excalibur-logkit-2.0/src/java/org/apache/log/output/db/DefaultDataSource.java	2004-04-11 21:44:07.000000000 +0530
+++ excalibur-logkit-2.0.new/src/java/org/apache/log/output/db/DefaultDataSource.java	2009-07-10 00:37:07.000000000 +0530
@@ -111,4 +111,14 @@
     {
         m_logWriter = logWriter;
     }
+
+    public Object unwrap(Class iface) throws java.sql.SQLException
+    {
+       throw new UnsupportedOperationException();
+    }
+
+    public boolean isWrapperFor(Class iface) throws java.sql.SQLException
+    {
+       throw new UnsupportedOperationException();
+    }
 }