Sample06 does not work correctly

i tested sample06 and following error message was displayed in the client terminal.

[copy] Copying 1 file to /home/asela/Rampart/rampart-1.5-RC1/samples/policy/build/client_repositories/sample06/modules
[copy] Copying 1 file to /home/asela/Rampart/rampart-1.5-RC1/samples/policy/build/client_repositories/sample06/modules
[copy] Copying 1 file to /home/asela/Rampart/rampart-1.5-RC1/samples/policy/build/temp_client
[copy] Copying 1 file to /home/asela/Rampart/rampart-1.5-RC1/samples/policy/build/temp_client
[java] log4j:WARN No appenders could be found for logger (org.apache.axis2.deployment.FileSystemConfigurator).
[java] log4j:WARN Please initialize the log4j system properly.
[java] Exception in thread "main" org.apache.axis2.AxisFault: Soap Header must be signed : http://www.w3.org/2005/08/addressing:To
[java] at org.apache.axis2.util.Utils.getInboundFaultFromMessageContext(Utils.java:517)
[java] at org.apache.axis2.description.OutInAxisOperationClient.handleResponse(OutInAxisOperation.java:371)
[java] at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:417)
[java] at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:229)
[java] at org.apache.axis2.client.OperationClient.execute(OperationClient.java:165)
[java] at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:539)
[java] at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:520)
[java] at org.apache.rampart.samples.policy.sample06.Client.main(Unknown Source)
[java] Java Result: 1