Human Task Events

Hi,
I have a human task that is initially assigned to a group of users and I need to know when and which user acquires it before submitting the result.
I thought that this could be done using the onTaskAssign event, but it doesn't work.
Does anyone have an idea of how I can do it?
Regards

Similar Messages

Human Task Events's Validation Callback Errored out while using EJB method

Hi All,
We are using weblogic version 10.3.5. and Jdev 11.1.1.5.0
In our BPM Process we have human tasks,in human task Events,we are using Validation Callback to save and get some information.To save and get information we are ejb.
1)We have created one BaseTaskValidator.java which implements ITaskValidationCallback.
2)we have override the validateTaskOperation() method in BaseTaskValidator.java
3)We have created one more TaskReminderService.java extends BaseTaskValidator
4)In TaskReminderService.java,when we trying to get information from Database with help of EJB we are getting the below error.
[2012-10-14T21:05:47.610+05:30] [soa_server1] [ERROR] [] [oracle.soa.services.workflow.task] [tid: [ACTIVE].ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: Amar.Kant] [ecid: 1416ca41dee3590b:5c59d6e4:13a59f6159b:-8000-0000000000021e0b,0] [APP: soa-infra] [composite_name: ARCN] [component_name: CNRequestTask] [component_instance_id: 204583] [composite_instance_id: 1470009] <.> Error in invoking task validation callbacks.[[
Error in invoking task validation Java callback com.atc.arcn.callbacks.BaseTaskValidator.performCallbacks for task 204583. The task is associated with workflow default/ARCN!1.0/CNRequestTask.
Make sure that the task validation callback class is specified correctly without any errors. The class name should be fully qualified. Also make sure that the class and its dependencies are available in the classpath.
ORABPEL-30099
Error in invoking task validation callbacks.
Error in invoking task validation Java callback com.atc.arcn.callbacks.BaseTaskValidator.performCallbacks for task 204583. The task is associated with workflow default/ARCN!1.0/CNRequestTask.
Make sure that the task validation callback class is specified correctly without any errors. The class name should be fully qualified. Also make sure that the class and its dependencies are available in the classpath.
     at oracle.bpel.services.workflow.task.impl.TaskValidationCallbackInvoker.executeJavaCallback(TaskValidationCallbackInvoker.java:195)
     at oracle.bpel.services.workflow.task.impl.TaskValidationCallbackInvoker.performCallbacks(TaskValidationCallbackInvoker.java:104)
     at oracle.bpel.services.workflow.task.impl.TaskService.initiateTask(TaskService.java:1190)
     at oracle.bpel.services.workflow.task.impl.TaskService.initiateTask(TaskService.java:666)
     at oracle.bpel.services.workflow.task.impl.TaskService.initiateTask(TaskService.java:614)
     at sun.reflect.GeneratedMethodAccessor4268.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     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 oracle.bpel.services.workflow.common.WorkflowServiceCacheEventAdvice.invoke(WorkflowServiceCacheEventAdvice.java:91)
     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at oracle.bpel.services.workflow.test.workflow.ExceptionTestCaseBuilder.invoke(ExceptionTestCaseBuilder.java:155)
     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at oracle.bpel.services.common.dms.MethodEventAspect.invoke(MethodEventAspect.java:70)
     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at oracle.bpel.services.common.dms.MethodPhaseEventAspect.invoke(MethodPhaseEventAspect.java:82)
     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
     at $Proxy250.initiateTask(Unknown Source)
     at oracle.bpel.services.workflow.task.ejb.TaskServiceBean.initiateTask(TaskServiceBean.java:70)
     at sun.reflect.GeneratedMethodAccessor4267.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
     at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
     at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
     at $Proxy280.createProcessInstanceTask(Unknown Source)
     at oracle.bpm.services.instancemanagement.ejb.InstanceManagementServiceBean_sqa2w0_IInstanceManagementServiceRemoteImpl.__WL_invoke(Unknown Source)
     at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:40)
     at oracle.bpm.services.instancemanagement.ejb.InstanceManagementServiceBean_sqa2w0_IInstanceManagementServiceRemoteImpl.createProcessInstanceTask(Unknown Source)
     at oracle.bpm.services.instancemanagement.ejb.InstanceManagementServiceBean_sqa2w0_IInstanceManagementServiceRemoteImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:174)
     at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:345)
     at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:259)
     at oracle.bpm.services.instancemanagement.ejb.InstanceManagementServiceBean_sqa2w0_IInstanceManagementServiceRemoteImpl_1035_WLStub.createProcessInstanceTask(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:85)
     at $Proxy404.createProcessInstanceTask(Unknown Source)
     at oracle.bpm.papi.ora.util.ApplicationExecution11G.beginExecution(ApplicationExecution11G.java:50)
     at fuego.papi.utils.ApplicationExecution.beginExecution(ApplicationExecution.java:29)
     at oracle.bpm.workspace.model.common.ExecutionBean.handleExternalInstanceExecution(ExecutionBean.java:171)
     at oracle.bpm.workspace.model.application.ApplicationBean.execute(ApplicationBean.java:148)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.sun.el.parser.AstValue.invoke(Unknown Source)
     at com.sun.el.MethodExpressionImpl.invoke(Unknown Source)
     at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:46)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
     at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
     at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:148)
     at org.apache.myfaces.trinidad.component.UIXTable.broadcast(UIXTable.java:279)
     at oracle.adf.view.rich.component.UIXTable.broadcast(UIXTable.java:145)
     at oracle.adf.view.rich.component.rich.data.RichTable.broadcast(RichTable.java:402)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
     at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:148)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
     at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:148)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.broadcastEvents(LifecycleImpl.java:902)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:313)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:186)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.help.web.rich.OHWFilter.doFilter(Unknown Source)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:175)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at oracle.bpel.services.workflow.task.impl.TaskValidationCallbackInvoker.executeJavaCallback(TaskValidationCallbackInvoker.java:191)
     ... 344 more
Caused by: java.lang.NullPointerException
     at com.atc.arcn.util.TaskReminderService.getTaskDetails(TaskReminderService.java:72)
     at com.atc.arcn.util.TaskReminderService.setReminderDuration(TaskReminderService.java:64)
     at com.atc.arcn.util.TaskReminderService.setReminderDuration(TaskReminderService.java:56)
     at com.atc.arcn.callbacks.BaseTaskValidator.processInitiate(BaseTaskValidator.java:96)
     at com.atc.arcn.callbacks.BaseTaskValidator.validateTaskOperation(BaseTaskValidator.java:52)
     ... 349 more
Please help on this issue.It is little bit urgent for us to resolve.
Thanks in advanced.

Thanks for reply Ravi.
The NullPointerException is beacuse of JNDI problem,we resolved that issue.We are able to create the ejb instance but with that instance when we are trying to call ejb method,we are getting the below error in console and the BPM instance is not getting created.
We are able to create the instance of the EJB Bean.But when we try to call the method of EJB Bean(getTaskDetailsByTaskName(taskName)),the BPM instance is not getting created from BPM workspace.If we comment the code for the method of EJB Bean(getTaskDetailsByTaskName(taskName)) able to create the instance from BPM workspace.When we checked the log file this error,it is
Caused by: fuego.papi.exception.CannotCreateInstanceException: Cannot create instance in process 'default/ARCN!1.0*/ARCN'.
     at oracle.bpm.papi.ora.helper.ExceptionHelper.wrapException(ExceptionHelper.java:58)
     at oracle.bpm.papi.ora.util.ApplicationExecution11G.beginExecution(ApplicationExecution11G.java:56)
     at fuego.papi.utils.ApplicationExecution.beginExecution(ApplicationExecution.java:29)
     at oracle.bpm.workspace.model.common.ExecutionBean.handleExternalInstanceExecution(ExecutionBean.java:171)
     ... 102 more
Caused by: BPM-70204
Exception
exception.70204.type: error
exception.70204.severity: 2
exception.70204.name: Error creating process instance.
exception.70204.description: Error creating instance for target process default/ARCN!1.0*/ARCN.
exception.70204.fix: Verify server log to find the problem cause.
     at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:205)
     at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:345)
     at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:259)
     at oracle.bpm.services.instancemanagement.ejb.InstanceManagementServiceBean_sqa2w0_IInstanceManagementServiceRemoteImpl_1035_WLStub.createProcessInstanceTask(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:85)
     at $Proxy407.createProcessInstanceTask(Unknown Source)
     at oracle.bpm.papi.ora.util.ApplicationExecution11G.beginExecution(ApplicationExecution11G.java:50)
     ... 104 more
Could you please suggest me on this issue.
Thanks,
Narasimha

Human task callback

hi,
I am configuring Human task event's with java class call back . On human task complete task , i want the java class to be triggered.
I implemented oracle.bpel.services.workflow.task.IRoutingSlipCallback interface and specified the full java class name "com.bpm.event.CompleteEvent" in the human task event and also clicked the checkbox.
add the implementation to BPMEvents.jar file. and added below entry in commenv.cmd for the weblogic server path.
set PATH=D:\OracleBPM11g\user_projects\domains\SSODomain\lib\BPMEvents.jar;%PATH%
While completing the human task , CompleteEvent class implementation are NOT getting triggered instead , i am getting below exception
Exception :
what do i do: seems an odd quirk of the EJB spec. The exception is:java.lang.NoClassDefFoundError: oracle/bpel/services/workflow/task/IRoutingSlipCallback
Any idea , how i can add the bpm-services.jar (contains the interface IRoutingSlipCallback ) to weblogic classpath ??
Thanks

As no body answered , i am answering the question myself . Jar or class should be \Oracle_SOA1\soa\modules\oracle.soa.ext_11.1.1\ and we need to execute the ANT build.xml

BPM 11g - Human task not removed when interrupting boundary event fired

In BPM 11g (11.1.1.1.3), I am testing a message catch event on the boundary of a human task. It is set for interrupting, so it should, when the event fires, remove the human task from the work list and follow the flow out of the event. The event flow is being followed, but the human task is being left active in the user's work list. I would expect the human task to be removed when the interrupting boundary message event occurs.
I think this is a bug, but would welcome any suggestions on how to solve it. Does anyone know if this works in the latest release (11.1.1.1.4)? We might upgrade pretty soon. Has anyone else tried boundary message events and gotten them to work properly in BPM 11g?
Just FYI....in order to make the BPM message event occur and provide instance correlation, we had to add a mediator and BPEL correlation. We followed process documented in a previous post to do this (http://blog.andrade.inf.br/2011/01/implementing-correlation-in-bpm-11gr1.html). Thanks to whomever posted that...it got us a few steps further along!

I do not think this is bug based on
Oracle® Fusion Middleware Modeling and Implementation Guide for Oracle Business Process Management
23.1.1 Understanding the Relationship Between SOA Composites and SOA Components
"In a similar way, when an interrupting timer or message boundary event arrives to a user task, the BPMN process instance leaves the user task but the associated Human Task remains available. Because the interrupting timer or message boundary event arrived before the user completes the user task, the human task remains unfinished, and you can still access it thought the Worklist application. However running that human task does not have any effect on the BPMN process."
This also gives us big trouble. I am looking for the solution.
Helen

Human task flow call back events with external web service

Hi All,
I have a requirement to call webservice inside human task flow. I have three participant in my human task flow. Let suppose A, B and C. When A approves then task will be assigned to B and when B approves it will go for C.
My requirement is that, when A approves , then i need to call one external webservice to update database. For this i have enabled call back events from human task flow.
In this way i got while loop inside my BPEL. In onTaskAssigned operation i am now trying to call external web service. My requriment is to call external service and get data from service. After getting response from the webservice, i want to assign it to next participant.
But in this case, when user B approves, it goes to onTaskAssigned block and i am able to make external web service also but mean time, it has been assigned to User C which i do not want.
I want Human task flow to wait for the web service response then only assign it to next participant.
Please help.
Regards,
Sunil

Hi Sunil
Have you tried using WebServices Adapter. The usecase seems pretty straight forward. You have a WebService that has some code and some Operations to update some Database. First thing, I hope you have methods/Operations defined with request and response xsd for each operation.
Now you define the main master payload, that should have all elements specific to your process and also few elements to store the output coming from each operation. Because response of each operation may need to go to other Task and get saved in the Payload also.
You have like 3 Tasks. To complicate, I will assume that each Task can either Approve or Reject. And last 2 Tasks gets data from payload, previous task and also output from the WebService Operation (method).
Task A -> Xor Gateway (Approve/Reject) -> If Approve -> Call WebServices Adapter -> Task B -> Xor Gateway(...) -> ......
At each intersection, you can map the attributes for incoming and outgoing. Based on WebServices output also, you can have Another XOR Gateway and decide to send to Task B or do something else. So combinations of outputs of each service (task or webservice adapter) and XOR gateways, you can have a decent control on the overall flow.
Note: I am hoping the webservices is Synchronous where you get the response immediately.
Let me know if I am missing something.
Thanks
Ravi Jegga

Not able to access human task form (11.1.1.4)

I installed SOA Suite with BPM Suite 11.1.1.4. I ran into quite a few issues. The biggest one is I am not able to access the human task form in BPM workspace even for the new application created in 11.1.14.
Do you have such issue? I am not sure if it is a bug or is related to my specific installation. I followed the document “Quick Start Guide for Oracle® SOA Suite 11gR1 (11.1.1.4.0) Version 1.6” for the installation. The only difference is that I installed the generic version of WebLogic and JDev and configured them to use JDK 64-bit version since my OS is windows 7 (64-bit). Before, I had installed 11.1.1.3 with 64-bit and it was working fine. The only tool installed with 32-bit is the JDev 11.1.1.3. Since JDev 11.1.1.4 is supporting 64-bit, I installed everything with 64-bit for this time.
The details of the error are the following:
With JDev 11.1.1.4, I created a new application which has a simple BPM process with 3 flow objects: start event-user activity-end event. The human task has the auto-generated task form. I deployed the application to the SOA server.
When testing the application, the task was created and listed in the BPM workspace. But when I clicked the task link to open the task form, the web page was hanging. I noticed the following log was REPEATED again and again in the access.log:
140.98.125.168 - - [20/Apr/2011:10:28:08 -0400] "GET /workflow/TestpsUI/faces/adf.task-flow?bpmWorklistTaskId=2a5b4ad1-823f-4615-8a7e-c5449a7be814&bpmWorklistContext=12aa4934-991a-487c-b7f3-5159808c399a%3B%3BtbcZXSd1E1LVZv8OIaLZGd21meLUMNkYSMsmz60kNKoEaJ1N53wy3zyRYA%2BunyKF9UNi50fPHKtaXY6IqKbh%2Fu68WebTan3zCwGsUNmNMaw8aLEygS5qb2cOGx2qGal86F%2FgiRka874PYLXhohFdDPCQyoxre2p7IgpsloLHq2rh7T3zWGnyOjLdC7Qw0Geb20Kfp8XA2UUIoxaxTHS6YFPQqqs%2FzIkyEsgMNQJMDbYYGdceRL2sT8rMkBXpmQ0r&bpmWorklistHttpURL=http%3A%2F%2Flocalhost%3A7001%2Fbpm%2Fworkspace%2Ffaces&bpmWorklistHome=home.jspx&bpmWorklistReassign=reassignTask.jspx&bpmWorklistRoute=routeTask.jspx&bpmWorklistRequestInfo=requestInfo.jspx&bpmWorklistSecurity=signTask.jspx&tz=America%2FNew_York&lg=en&cy=US&vr=&dispNameLg=en&dispNameCy=US&dispNameVr=&df=medium&dt=both&tf=short&bpmWorklistSessionTimeoutInterval=900&soaUrl=http%3A%2F%2F140.98.125.168%3A7001&bpmBrowserWindowStatus=taskFlowReturn&adf.tfDoc=%2FWEB-INF%2FHumantask_TaskFlow.xml&adf.tfId=Humantask_TaskFlow&_task-flow-return=http%3A%2F%2Flocalhost%3A7001%2Fbpm%2Fworkspace%2Ffaces%2Fadf.task-flow-return%3F_adf.ctrl-state%3De1i6yi1gq_35&_adf.winId=e1i6yi1gq_26&_afrLoop=7156779026094&_afrWindowMode=0&_afrWindowId=null HTTP/1.1" 200 5478
Please help if you know what is going on for the issue.
Thanks a lot,
Helen

Go to OEM, select the SOA Composite application you deployed.
Under Component Metrics … click the link of the Human Workflow Component that you have the issue
The settings of the Human Workflow Component would be displayed
Click the Administration tab, you will get the URI setting for the human task
update the Host name etc. as you want and click "OK" then click "Apply"
Please note: this is just a shortcut for my own dev-env. I have not got the time to figure out why this happens. It is sure not the right solution for the production if we have the issue in the prod-env, I think.

Call web service from human task

Hi All,
I have a requirement to call webservice inside human task flow. I have three participant in my human task flow. Let suppose A, B and C. When A approves then task will be assigned to B and when B approves it will go for C.
My requirement is that, when A approves , then i need to call one external webservice to update database. I did not get any option to call webservice inside human task flow.
Please help.
Regards,
Sunil

Thanks userN for your wonderful reply but i have one more question.
As per your instructions i have enabled call back events in Human task flow. In this way i got while loop inside my BPEL. In onTaskAssigned operation i am now trying to call external web service. My requriment is to call external service and get data from service. After getting response from the webservice, i want to assign it to next participant.
But in this case, when user B approves, it goes to onTaskAssigned block and i am able to make external web service also but mean time, it has been assigned to User C which i do not want.
I want Human task flow to wait for the webservice response then only assign it to next participant.
Please help, is there any option to do it.
Regards,
Sunil

How to retrieve a due date from a human task and create a report in BAM with it

Hi.
I'm working with a BPM process, the requirement is that I have a human task and a working hours limit to complete it. For this purpose I created a calendar in the bpm workspace and I've associated it to a role that executes that human task. Now I need to know how can I pass it into a data_object in BAM in order to create a Dashboard that lets me know whether a human task was completed just in time.
I'm using Oracle SOA Suite 11.1.1.7.0
Thank you.

There's a correction to the code. For whatever reason doing it that way still sets it as a "remind me when" parameter. Use the following code instead:
tell application "System Events" to set FrontAppName to name of first process where frontmost is true
if FrontAppName is "Reminders" then
          tell application "Reminders"
                    set duedate to (current date) + (2 * days)
make new reminder with properties {name:"New Reminder", due date:duedate}
          end tell
else
          display dialog "failed to make new reminder!"
end if

Using Human tasks in a BPM process

Hi
I managed to deploy the VacationRequest sample which uses human task in a BPEL process.
I want to implement the same human task in a BPM process. Are there any tutorials or stepswise guide for the Vacation Request sample using BPM process?
Also, what are the main differences between a BPEL and a BPM process because most of the things that are done in BPEL can be done in an BPM process as well.
Thanks

I was able to implement the same using a BPM Process.
For those of you, who may require the steps:
1. Create a webservice based on the VacationRequest.xsd with VacationRequest as request and VacationResponse as CallBack
2. Create a human task and task flow as described in the VacationRequest.pdf provided along with the sample.
3. Create a BPMN process, associate the Start Event to the WebService Interface and map the request and response.
Also associate the End Event to theWebService callback port.
4. Deploy the process and taskflow.
But I have a query here? Even in the sample given(using bpel process) how will the requestor know that the leave has been approved/rejected.
what exactly is sent out as the response to the call back port. And, where can the requestor view the response?
Regards

A BPM process with out any human task

Hi All,
I am new bie to BPM. Can I create a BPM process without any human task?
Like start event, service task (or any other activity) & end event.
If it is possible, please let me know the proper steps to execute and test this process also.
Thanks,

Hi
Yes, ofcourse you can have a Process without any User Task. Ex: Start Node -> Service Task -> End Node. Start Node can be 2 things say like DB Adapater and File Adapter. Read something from DB from some table and put into the Text File.
But the thing is, BPM Process is more of Role Oriented. If you already saw, you define something called Swim Lanes and put each User Task in those Lanes and automatically users in that Role only can work on those Task.
If you do not have any such things like User Task, you don't even need to create a BPM Process. Just create a simple BPEL with your custom Payload.
Now, the most important question is how do you plan to trigger/start this process whether BPM or BPEL. Do you assign some users to the first Role and do users log into bpm/workspace and click the Link on the left side to start the process. ALSO since there is NO User Task, you will NOT have any Task Details Page and this means you MAY NOT even see the link on the left side in bpm/workspace.
The only option I could see is have BPEL. This BPEL will have a WSDL automatically generated. And you can use this WSDL to instantiate the task.
If your intention is to use this process/bpel in some other MAIN Process then it is totally possible.
Thanks
Ravi Jegga

WDA Human Task does not complete/close

Hi experts,
I'm still struggling to flex web dynpro abap and BPM together.
After embedding a wda chip as human task within my process, I face the next problem: The event defined as outport in my wda chip does not close the task when fired from my wda component controller. The page isn't affected by the event at all, the task is not completed. I debugged the wda method and found it throwing the event as expected.
Since the wda page is opened as expected and shows the data mapped via Input Mapping I think the chip and system landscape definition (done via the portal system administration) are correct.
Any clues on this? What am I missing?
Thanks and kind regards,
Helmut

Hello Abhilash,
thanks for your answer!
I created the event (wih one parameter) in the WDA componnt controller and the component interface and made sure it is thrown correctly (I checked it via debugger).
In the Chip I created an Outbound port (again with the parameter) and tagged it as CHIP_CONTRACT:PROCESS_STEP_END_POINT.
On the consuming side I did nothing special with the outbound event but mapping it's output to my process context.
Kind regards
Helmut

How to know which stage has been completed in Human task flow.

Hi All,
I have one human task flow where there is three participants. Participant A, B and C and all are in sequence.
When User B approves the task, i need to do some business logic. when user B approves the task, it will be assigned to User C. I have defined call back events. There i can use task assigned condition to do my business logic.
My question is that how i can get to know that Task assigned to user C. Because it is a call back event and will be triggered when it will be assigned to A or B. I have tried to user the function previousOutcomeUpdatedBy to check whether it previous user was B or not. but in my case it is coming as workflowsystem.
instead of User B it is using workflowsystem
User:workflowsystem; State:OUTCOME_UPDATED; Outcome:CONFIRM
I am not aware, why workflow system is coming in picture.
do any one idea, how to solve this use case.
Regards,
Sunil

You can get the status from back end tables.
Check in SOA INFRA tables. Below is the list of human work flow tables.
WFTASK
WFTASK_TL
WFTASKHISTORY
WFTASKHISTORY_TL
WFCOMMENTS
WFMESSAGEATTRIBUTE
WFATTACHMENT
WFASSIGNEE
WFREVIEWER
WFCOLLECTIONTARGET
WFROUTINGSLIP
WFNOTIFICATION
WFNOTIFICATIONSTATUS
BPELNOTIFICATION
BPELNOTIFICATION_FILTERMSGS
BPELNOTIFICATION_INVALADDRS
WFTASKMETADATA
WFATTRIBUTELABELMAP
WFATTRIBUTELABELUSAGE
WFUSERVACATION
BPM_PRESENTATION
BPM_PRESENTATION_GRANT
WFUSERTASKVIEW
WFUSERTASKVIEWGRANT
WFUSERPREFERENCE
BPM_USERAPPLICATIONDATA
BPM_USERAPPLICATIONDATA_GRANT
WFRULEDICTIONARY
WFTASKDISPLAY
WFTASKTIMER
WFNOTIFICATIONMESSAGES
WFTASKERROR
WFHEADERPROPS
WFCERTAUTHORITY
WFCERTIFICATEREVOKED
WFCERTIFICATE
WFEVIDENCE
WFTASKASSIGNMENTSTATISTIC
WFTASKSEQUENCECHANGES
WFTASKAGGREGATION
WFAPPROVALGROUPS
WFAPPROVALGROUPMEMBERS
Thanks,
Vijay

Add a Human Task in BPEL but it shows as an Auto Task in BPA

Hi, all,
I create a BPMN flow in BPA and mapping to BPEL. And I add a Human Task in jDeveloper, and saved back to BPA server. But the problem is the updated BPMN flow shows that I added a Auto Task in BPA. Could you help me on that? Thanks in advance.
Best Regards,
Bill

Hi Bill,
Prefatory a quick intro on the basic idea of the BPA concept and a few personal recommendations. In general all changes on the control flow should be initiated top-down from the business process, which means your requirement becomes relevant only in certain cases. If the refinement of the BPEL process is going beyond the technical implementation, then the BPMN diagram itself needs to be corrected. That being said, in certain cases it may be sensible to make use of the improvement proposal feature (e.g. the IT developer recognizes the need of an additional service invocation, so that the control flow of the business process has to be refined).
Referring to your issue these changes are displayed as Automated Activities (abstract) in the superior business process (in BPA). For this reason some activities require a different approach when it comes to accepting or rejecting by the business users. The description below provides an overview about how-to add activities in BPEL subsequently (as improvement proposals) and how they will be represented in the superior business process after synchronization (personal recommendations).
Control flow
Email, Fax, Pager, Pager, SMS, Voice+
BPEL process (JDeveloper)+
Encapsulate within a separate Abstract activity - choose a name, which helps to identify that this should be a Notification activity (define naming conventions in the conventions handbook).
Business process (BP Architect)+
By default represented as Automated Activity (abstract).
Open the improvement proposal model and select the new activity. Go to Format/Representation and select 'Notification' in the Symbol-dropdown list - the object appearance changes.
Important: double-click the new activity and specify all the required parameters. Share the blueprint with IT.
Note: The attributes of the abstract Automated Activity still appear in the attributes view.
Invoke+
BPEL process (JDeveloper)+
Encapsulate within Abstract activities.
Business process (BP Architect)+
If encapsulated within an existing scope in BPEL - not visible in the superior process.
If encapsulated within an Abstract activity in BPEL - represented as Automated Activity (abstract).
Human Task+
BPEL process (JDeveloper)+
Encapsulate with an a separate Abstract activity - choose a name, which helps to identify that this should be a Human Task activity (define naming conventions in the conventions handbook). Ignore the Switch activity that will be added below the Human Task.
Business process (BP Architect)+
By default represented as Automated Activity (abstract).
Open the improvement proposal model and select the new activity. Go to Format/Representation and select 'Human Task' in the Symbol-dropdown list - the object appearance changes.
Important: double-click the new activity and specify all the required parameters. Share the blueprint with IT.
Note: The attributes of the abstract Automated Activity still appear in the attributes view.
Receive, Reply+
BPEL process (JDeveloper)+
Encapsulate within Abstract activities.
Business process (BP Architect)+
If encapsulated within an existing scope in BPEL - not visible in the superior process.
If encapsulated within an Abstract activity in BPEL - represented as Automated Activity (abstract).
Decide+
BPEL process (JDeveloper)+
Add a new Abstract scope - choose a name, which helps to identify that this should be a Business Rule activity (define naming conventions in the conventions handbook). Place an Empty activity inside the scope.
Business process (BP Architect)+
By default represented as Automated Activity (abstract).
Open the improvement proposal model and select the new activity. Go to Format/Representation and select 'Business rule function' in the Symbol-dropdown list - the object appearance does change.
Important: double-click the new activity and specify all the required parameters. Share the blueprint with IT.
Note: The attributes of the abstract Automated Activity still appear in the attributes view.
Flow, Switch, Pick+
BPEL process (JDeveloper)+
Only new branches within existing activities can be added subsequently. Each branch should contain at least one Abstract activity.
Business process (BP Architect)+
New activities should be defined in the superior business process.
Displayed as gateways (AND, XOR <event-based>, XOR <data-type>, OR) - the definition of these activities should be initiated in the business process.
While+
BPEL process (JDeveloper)+
Only within existing scopes. Loops should be defined in the superior business process.
Business process (BP Architect)+
If not encapsulated within a scope in BPEL - will be represented as Automated Activity (abstract).
If encapsulated within an existing scope in BPEL - not visible in the superior process after synchronization.
If encapsulated within an Abstract in BPEL - will be represented as Automated Activity (abstract).
Implementation
Assign, Transform, Throw+
BPEL process (JDeveloper)+
Only within existing scopes.
Business process (BP Architect)+
Not visible.
Wait, Terminate+
BPEL process (JDeveloper)+
Not recommended to add them subsequently - should be defined in the superior business process via Intermediate events (BPMN).
Business process (BP Architect)+
Displayed as intermediate event - the definition of these activities should be initiated in the business process.
Kind regards,
Danilo

Human task notification after due date/expiration date/...

I would like to set a due date (or expiration date) to Human task, and set some notification before this time. Ok, it seemed very easy:
- i set due date to 5 minutes in human task -> Deadlines
- i set notifications in human task -> notification and in tab Advanced i set remind once 2 minutes before due date
Nothing happens. Exactly same (nothing) happens when i do the same with expiration date.
But what exactly is meaned under word "Reminder"?
It's mail? (then where I have to set email adress? I tried to set a "to" field in human task -> notification -> tab Advanced -> notif. header attributes => nothing happened)
It's worklist inbox message?
Or what ist "reminder" and how it should remind me?
Edited by: user1175491 on Dec 28, 2010 7:21 PM

Hi,
I don’t know if you’ve managed to resolve this issue yet and you mention you have emails working from BPEL, but I'm not sure if you've got any notifications working for the Human Task, if not then I have done some work with the human task notifications and although I’ve not tried to do what you’re doing, this is what I have learned.
Firstly to receive any notifications you need to configure the Messaging Driver and Workflow Notification Properties…
In Enterprise Manager expand [farm] -> SOA -> soa-infra
Right click soa-infra and choose SOA Administration -> Workflow Notification Properties
Underneath the page title (Workflow Notification Properties) is a note telling you to configure the Messaging Service Driver. Click the "Go to the Messaging Driver page" link.
In the associated drivers section you will have a single entry for soa_server1 (or what ever it's called for you). In the right hand column there is a button for configuring the driver, click this.
In the driver specific configuration, scroll down to OutgoingMailServer and enter the hostname or IP address of your mail server, then click Apply at the top of the screen.
Now go back to the Workflow Notification Properties screen and choose “Email” from the notification Mode and enter some sensible email addresses in the Notification Service section. It’s useful to have real email addresses in here at the moment because any failures will be returned to this address.
You now need to restart Weblogic for these changes to take affect.
After the restart you can test the notifications by doing the following
Back in Enterprise Manager expand [farm] -> SOA -> soa-infra
Right click soa-infra and choose Service Engines -> Human Workflow
Click on the Notification Management tab.
You can click the "Sent Test Notification" button to make sure everything is working ok. This screen also allows you to monitor notifications for failures.
Now that the notifications have been set up you can configure who gets notified on which events against your human task in JDeveloper.
The email addresses for the users are retrieved from your identify provider for the relevant user, by default this is the internal LDAP directory. I’m not using this, so I’m not sure exactly how this will work. There are options in the worklist application for individual users, but I’m not using this either.
Now that this is set up you can configure the human task within JDeveloper. On the notification tab you can decide who gets notified when. By default when a task is assigned to a user, the assignees are notified, you can play about with these settings to see what works best for you. Have a look at http://download.oracle.com/docs/cd/E12839_01/integration.1111/e10224/bp_workflow.htm#BABBHDGF for more information.
I’m not sure I’ve solved your problem, but I hope this at least helps.

Throwing Business Exception from Human Task

Hi,
Can anyone point me to some examples, of how can I configure a Human Task to throw a business exception in a BPMN process ?
I want to provide th user with the ability of completing the task normaly, or launch a business exception like, cancel the order, or lack of stock.
I'm using Fusion 11g.
Thank You.
/RG

Hi
Thanks for the reply. But, I'm not sure I understood you correctly. What I want, is not to capture an exception after a human task, but to generate one in it. I want to add an error boundary event to a human task. The user can fill the form normally (for example a purchase order) and the normal flow continues or he can generate an exception (like cancel case, or lack of stock) that will be cought by the error boundary event.
What I want to know is how can I generate a business exception inside a human task? For example in the interface.
Is this the right way to do it ? Am I missing something ?

Human Task Events

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