Petals Sample Clock

sample-0 2014/08/11 11:02:56,714 GMT+0200 INFO [Petals.Container.Components.petals-sample-client] : SampleClient try to send
sample-0 2014/08/11 11:02:56,720 GMT+0200 MONIT [Petals.Container.Components.petals-sample-clock] : traceCode = 'provideFlowStepBegin', flowInstanceId = null, flowStepId = null, flowStepInterfaceName = '{http://petals.ow2.org}Clock', flowStepServiceName = '{http://petals.ow2.org}ClockService', flowStepOperationName = 'time', flowStepEndpointName = 'edpt-4c9f3f00-198f-11e4-bd7e-00216a6479c0', flowPreviousStepId = null
sample-0 2014/08/11 11:02:56,726 GMT+0200 WARNING [Petals.Container.Components.petals-sample-clock] : Start date item not found into the probe about response times of service providers. Metric values can be uncorrect.
sample-0 2014/08/11 11:02:56,727 GMT+0200 SEVERE [Petals.Container.Components.petals-sample-clock] : null
java.lang.NullPointerException
	at org.ow2.petals.probes.key.ExecutionStatusProbeKeyImpl.toStringArray(ExecutionStatusProbeKeyImpl.java:57)
	at org.ow2.petals.probes.impl.KeyedCounterProbeImpl.move(KeyedCounterProbeImpl.java:192)
	at org.ow2.petals.probes.impl.KeyedCounterProbeWithExecutionStatusImpl.move(KeyedCounterProbeWithExecutionStatusImpl.java:83)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.processAsProvider(MessageExchangeProcessor.java:521)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.process(MessageExchangeProcessor.java:344)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.run(MessageExchangeProcessor.java:259)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:662)
sample-0 2014/08/11 11:02:56,729 GMT+0200 SEVERE [Petals.Container.Components.petals-sample-clock] : Cannot send back an error acknowledgement or a Fault
javax.jbi.messaging.MessagingException: The Exchange is terminated.
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeImpl.checkIsNotTerminated(MessageExchangeImpl.java:565)
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeImpl.setMessage(MessageExchangeImpl.java:399)
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeWrapper.setMessage(MessageExchangeWrapper.java:350)
	at org.ow2.petals.microkernel.jbi.messaging.exchange.PersistedMessageExchangeWrapper.setMessage(PersistedMessageExchangeWrapper.java:284)
	at org.ow2.petals.component.framework.message.ExchangeImpl.getMessageExchange(ExchangeImpl.java:483)
	at org.ow2.petals.component.framework.process.MessageExchangeProcessor.run(MessageExchangeProcessor.java:282)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:662)