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java.lang.NullPointerException: 	at org.obiba.onyx.jade.core.service.impl.DefaultActiveInstrumentRunServiceImpl.hasContraindications(DefaultActiveInstrumentRunServiceImpl.java:415)	at sun.reflect.GeneratedMethodAccessor98.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)	at $Proxy55.hasContraindications(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.apache.wicket.proxy.LazyInitProxyFactory$JdkHandler.invoke(LazyInitProxyFactory.java:416)	at org.apache.wicket.proxy.$Proxy59.hasContraindications(Unknown Source)	at org.obiba.onyx.jade.core.wicket.wizard.InstrumentWizardForm.setUpWizardFlow(InstrumentWizardForm.java:85)	at org.obiba.onyx.jade.core.wicket.wizard.InstrumentWizardForm.(InstrumentWizardForm.java:74)	at org.obiba.onyx.jade.core.wicket.JadePanel$1$1.(JadePanel.java:64)	at org.obiba.onyx.jade.core.wicket.JadePanel$1.createForm(JadePanel.java:64)	at org.obiba.onyx.wicket.wizard.WizardPanel.(WizardPanel.java:30)	at org.obiba.onyx.jade.core.wicket.JadePanel$1.(JadePanel.java:60)	at org.obiba.onyx.jade.core.wicket.JadePanel.(JadePanel.java:60)	at org.obiba.onyx.jade.engine.state.JadeInProgressState.getWidget(JadeInProgressState.java:49)	at org.obiba.onyx.engine.state.StageExecutionContext.getWidget(StageExecutionContext.java:177)	at org.obiba.onyx.webapp.stage.page.StagePage.(StagePage.java:121)	at org.obiba.onyx.webapp.stage.panel.StageSelectionPanel$1.onActionPerformed(StageSelectionPanel.java:93)	at org.obiba.onyx.wicket.action.ActionWindow$2.onClose(ActionWindow.java:60)	at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow$WindowClosedBehavior.respond(ModalWindow.java:832)	at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:297)	at org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:100)	at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91)	at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1175)	at org.apache.wicket.RequestCycle.step(RequestCycle.java:1252)	at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1353)	at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)	at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:355)	at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:200)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)	at java.lang.Thread.run(Unknown Source)