Maintenance Record is locked by another document

java.lang.RuntimeException: Unable to create or update TenderContract - Maintenance Record is locked by another document.* GLOBAL_ERRORS: error.maintenance.locked;

    at za.org.kuali.kfs.module.purap.document.service.impl.PurchaseOrderServiceImpl$1.call(PurchaseOrderServiceImpl.java:592)
    at za.org.kuali.kfs.module.purap.document.service.impl.PurchaseOrderServiceImpl$1.call(PurchaseOrderServiceImpl.java:547)
    at org.kuali.rice.krad.util.GlobalVariables.doInNewGlobalVariables(GlobalVariables.java:191)
    at za.org.kuali.kfs.module.purap.document.service.impl.PurchaseOrderServiceImpl.updateTenders(PurchaseOrderServiceImpl.java:547)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at com.sun.proxy.$Proxy295.updateTenders(Unknown Source)
    at za.org.kuali.kfs.fp.document.ContractDisbursementVoucherDocument.doRouteStatusChange(ContractDisbursementVoucherDocument.java:106)
    at org.kuali.rice.krad.service.impl.PostProcessorServiceImpl$1.call(PostProcessorServiceImpl.java:81)
    at org.kuali.rice.krad.service.impl.PostProcessorServiceImpl$1.call(PostProcessorServiceImpl.java:61)
    at org.kuali.rice.krad.util.GlobalVariables.doInNewGlobalVariables(GlobalVariables.java:191)
    at org.kuali.rice.krad.service.impl.PostProcessorServiceImpl.doRouteStatusChange(PostProcessorServiceImpl.java:60)
    at sun.reflect.GeneratedMethodAccessor985.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at com.sun.proxy.$Proxy113.doRouteStatusChange(Unknown Source)
    at sun.reflect.GeneratedMethodAccessor985.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.kuali.rice.core.framework.persistence.jpa.NoResultExceptionInterceptor.invoke(NoResultExceptionInterceptor.java:33)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at com.sun.proxy.$Proxy114.doRouteStatusChange(Unknown Source)
    at org.kuali.kfs.sys.document.workflow.PostProcessor.doRouteStatusChange(PostProcessor.java:53)
    at org.kuali.rice.kew.engine.StandardWorkflowEngine.notifyPostProcessor(StandardWorkflowEngine.java:513)
    at org.kuali.rice.kew.engine.StandardWorkflowEngine.nodePostProcess(StandardWorkflowEngine.java:423)
    at org.kuali.rice.kew.engine.StandardWorkflowEngine.process(StandardWorkflowEngine.java:151)
    at org.kuali.rice.kew.impl.document.DocumentProcessingQueueImpl.processWithOptions(DocumentProcessingQueueImpl.java:66)
    at sun.reflect.GeneratedMethodAccessor1577.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at com.sun.proxy.$Proxy200.processWithOptions(Unknown Source)
    at sun.reflect.GeneratedMethodAccessor1576.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.kuali.rice.ksb.messaging.MessageServiceInvoker.invokeService(MessageServiceInvoker.java:157)
    at org.kuali.rice.ksb.messaging.MessageServiceInvoker$1.doInTransaction(MessageServiceInvoker.java:72)
    at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)
    at org.kuali.rice.ksb.messaging.MessageServiceInvoker.run(MessageServiceInvoker.java:67)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)