问WSO2 BPS3.2人工任务分配给多人创建失败状态的流程

EN

我正在尝试创建wso2人工任务，其中批准必须由多个所有者在某些顺序。我从异步BPEL流程调用人工任务。我能够成功上传流程和任务包。但是当我尝试创建流程实例时，我在日志中得到以下错误：

错误{org.wso2.carbon.humantask.core.integration.AxisHumanTaskMessageReceiver} -任务创建失败。org.wso2.carbon.humantask.core.dao.jpa.openjpa.model.provider.OrganizationalEntityProviderFactory.getOrganizationalEntityProvider(OrganizationalEntityProviderFactory.java:26) at org.wso2.carbon.humantask.core.dao.jpa.openjpa.JPATaskUtil.processGenericHumanRoles(JPATaskUtil.java:70) at org.wso2.carbon.humantask.core.dao.jpa.openjpa.HumanTaskDAOConnectionImpl.createTask(HumanTaskDAOConnectionImpl.java:64) at org.wso2.carbon.humantask.core.engine.HumanTaskEngine.createTask(HumanTaskEngine.java:81的java.lang.NullPointerException) at org.wso2.carbon.humantask.core.engine.HumanTaskEngine.access$000(HumanTaskEngine.java:38) at org.wso2.carbon.humantask.core.engine.HumanTaskEngine$1.call(HumanTaskEngine.java:100) at org.wso2.carbon.humantask.core.engine.HumanTaskEngine$1.call(HumanTaskEngine.java:93) at org.wso2.carbon.humantask.core.scheduler.SimpleScheduler.execTransaction(SimpleScheduler.java:880) at org.wso2.carbon.humantask.core.scheduler.SimpleScheduler.execTransaction(org.wso2.carbon.humantask.core.engine.HumanTaskEngine.invoke(HumanTaskEngine.java:93) at org.wso2.carbon.humantask.core.integration.AxisHumanTaskMessageReceiver.invokeBusinessLogic(AxisHumanTaskMessageReceiver.java:81) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172的SimpleScheduler.java:829)) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146) at org.wso2.carbon.core.transports.CarbonServlet.doPost(CarbonServlet.java:231) at javax.servlet.http.HttpServlet.service(HttpServlet.java:755) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)在org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)在javax.servlet.http.HttpServlet.service(HttpServlet.java:848)在org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)在org.apache.catalina.core.ApplicationFilterChain.doFilter(在org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org)的ApplicationFilterChain.java:210)。apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)在org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)在org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)在org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:178)在org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:49)在org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:141)在org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:156)在org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)在org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:52)在org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)在org.apache.catalina.connector.CoyoteAdapter.service(org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1653) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(未知源) 2014-02-0712:33:32,878警告{org.wso2.carbon.bpel.b4p.extension.PeopleActivity} - SOAP错误: urn:approveurn:uuid:1153d791-6283-4621-8b37-0e3a5095169esoapenv:Server

下面给出了在任务中设置工作流的代码片段。

` shippingLineRole choRole

`

知道这里出了什么问题吗？因为当工作流只有一个所有者时，任务创建可以正常工作。