diff -Naur /home/ngrounds/tmp/groovy-xmlrpc-0.3/xmlrpc/src/main/groovy/net/xmlrpc/XMLRPCCallFailureException.java src/main/groovy/net/xmlrpc/XMLRPCCallFailureException.java
--- /home/ngrounds/tmp/groovy-xmlrpc-0.3/xmlrpc/src/main/groovy/net/xmlrpc/XMLRPCCallFailureException.java	2005-09-08 03:55:13.000000000 -0500
+++ src/main/groovy/net/xmlrpc/XMLRPCCallFailureException.java	2007-07-02 12:47:16.000000000 -0500
@@ -53,11 +53,14 @@
 	private final Object faultCode;
 	
 	public XMLRPCCallFailureException(final Object faultString, final Object faultCode) {
-		super("XML-RPC call Failure: fault string = \"" + faultString + "\", fault code = " + faultCode);
+		this( faultString, faultCode, null );
+	}
+	
+	public XMLRPCCallFailureException( final Object faultString, final Object faultCode, final Throwable cause ) {
+		super("XML-RPC call Failure: fault string = \"" + faultString + "\", fault code = " + faultCode, cause);
 		
 		this.faultString = faultString;
 		this.faultCode = faultCode;
-		
 	}
 	
 	public Object getFaultCode() {
diff -Naur /home/ngrounds/tmp/groovy-xmlrpc-0.3/xmlrpc/src/main/groovy/net/xmlrpc/XMLRPCServerProxy.java src/main/groovy/net/xmlrpc/XMLRPCServerProxy.java
--- /home/ngrounds/tmp/groovy-xmlrpc-0.3/xmlrpc/src/main/groovy/net/xmlrpc/XMLRPCServerProxy.java	2005-09-04 06:57:56.000000000 -0500
+++ src/main/groovy/net/xmlrpc/XMLRPCServerProxy.java	2007-07-02 14:16:46.000000000 -0500
@@ -53,6 +53,8 @@
 import java.net.URL;
 import java.net.URLConnection;
 import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
 
 import uk.co.wilson.net.xmlrpc.XMLRPCFailException;
 
@@ -103,7 +105,7 @@
 			}
 			catch (final XMLRPCFailException e) {
 //				e.printStackTrace();
-				throw new XMLRPCCallFailureException(e.getFaultString(), new Integer(e.getFaultCode()));
+				throw new XMLRPCCallFailureException(e.getFaultString(), new Integer(e.getFaultCode()), e );
 			}
 			
 			final List response = responseParser.getParams();
@@ -121,9 +123,9 @@
 			}
 			
 		} catch (final IOException e) {
-			throw new XMLRPCCallFailureException(e.getMessage(), new Integer(0));
+			throw new XMLRPCCallFailureException(e.getMessage(), new Integer(0), e);
 		} catch (final XMLRPCFailException e) {
-      throw new XMLRPCCallFailureException(e.getFaultString(), e.getCause());
+      throw new XMLRPCCallFailureException(e.getFaultString(), e.getCause(), e);
     }
 	}
 }