BPM 12c BundelPatch1: InitiatorTask problem

 Last week we installed the new "SOA Bundle Patch 12.1.3.0.1 (Patch)" (19707784).
 Applying the patch went fine, no problem at all.

We have a process that is initiated by an Initiator Task, that can be started, I'm sure you're familiar with, using the link under 'Applications'. In our case, however, clicking it gives an exception in stead of opening the Task Form:

Unfortunately I have a Dutch version of my browser, but translated it states something like: "The process initiation task has no payload. The process instance has been created and has been approved."
The message in English:

Strange is that the task apparently is auto-submitted, since the process flows on causing, in  our process,  a  ACM Case started with empty data. A stacktrace we found in the server diagnostic log is:

[2015-01-26T09:28:58.517+01:00] [bpm_server1] [ERROR] [] [oracle.soa.services.workflow.task] [tid: [ACTIVE].ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: hans] [ecid: c7fc39f4-cf66-4d25-84e0-f1fd8eb550e5-000087b2,1:31540] [APP: soa-infra] [oracle.soa.tracking.FlowId: 700014] [oracle.soa.tracking.InstanceId: 760219] [oracle.soa.tracking.SCAEntityId: 210006] [FlowId: 0000Kg_MuAf5uX05zzS4yW1KlM_O00000c] <.> exception.code:30036[[
exception.type: ERROR
exception.severity: 2
exception.name: Invalid action on workflow task or user does not have privilege to perform this action.
exception.description: Action SUBMIT on task 1b51326d-a3be-4f9f-b055-b7b365ae2f3c cannot be performed by hans.
exception.fix: Make sure that the action is valid with respect to the current state of the task or ensure that the user has privilege to perform this action on the workflow task.
 ORABPEL-30036

exception.code:30036
exception.type: ERROR
exception.severity: 2
exception.name: Invalid action on workflow task or user does not have privilege to perform this action.
exception.description: Action SUBMIT on task 1b51326d-a3be-4f9f-b055-b7b365ae2f3c cannot be performed by hans.
exception.fix: Make sure that the action is valid with respect to the current state of the task or ensure that the user has privilege to perform this action on the workflow task.

 at oracle.bpel.services.workflow.task.impl.TaskService.performPreActionValidation(TaskService.java:8686)
 at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcomeAndEvaluateRoutingSlip(TaskService.java:3929)
 at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcome(TaskService.java:3725)
 at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcome(TaskService.java:3701)
 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.aop.framework.adapter.ThrowsAdviceInterceptor.invoke(ThrowsAdviceInterceptor.java:124)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
 at oracle.bpel.services.workflow.common.WorkflowFabricInitCheckAdvice.invoke(WorkflowFabricInitCheckAdvice.java:26)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
 at oracle.bpel.services.workflow.common.WorkflowServiceCacheEventAdvice.invoke(WorkflowServiceCacheEventAdvice.java:114)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
 at oracle.bpel.services.workflow.test.workflow.ExceptionTestCaseBuilder.invoke(ExceptionTestCaseBuilder.java:155)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
 at oracle.bpel.services.common.dms.MethodEventAspect.invoke(MethodEventAspect.java:70)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
 at oracle.bpel.services.common.dms.MethodPhaseEventAspect.invoke(MethodPhaseEventAspect.java:82)
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
 at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
 at com.sun.proxy.$Proxy407.updateTaskOutcome(Unknown Source)
 at oracle.bpel.services.workflow.task.ejb.TaskServiceBean.updateTaskOutcome(TaskServiceBean.java:616)
 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 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.oracle.pitchfork.intercept.MethodInvocationInvocationContext.proceed(MethodInvocationInvocationContext.java:100)
 at oracle.security.jps.ee.ejb.JpsAbsInterceptor$1.run(JpsAbsInterceptor.java:131)
 at java.security.AccessController.doPrivileged(Native Method)
 at oracle.security.jps.util.JpsSubject.doAs(JpsSubject.java:208)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:454)
 at oracle.security.jps.ee.ejb.JpsAbsInterceptor.runJaasMode(JpsAbsInterceptor.java:118)
 at oracle.security.jps.ee.ejb.JpsAbsInterceptor.intercept(JpsAbsInterceptor.java:197)
 at oracle.security.jps.ee.ejb.JpsInterceptor.intercept(JpsInterceptor.java:112)
 at sun.reflect.GeneratedMethodAccessor853.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:606)
 at com.oracle.pitchfork.intercept.JeeInterceptorInterceptor.invoke(JeeInterceptorInterceptor.java:109)
 at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
 at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
 at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
 at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
 at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(Unknown Source)
 at com.sun.proxy.$Proxy413.updateTaskOutcome(Unknown Source)
 at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_399vcw_EOImpl.__WL_invoke(Unknown Source)
 at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:34)
 at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_399vcw_EOImpl.updateTaskOutcome(Unknown Source)
 at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_399vcw_EOImpl_WLSkel.invoke(Unknown Source)
 at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:226)
 at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:474)
 at weblogic.rmi.cluster.ClusterableRemoteRef.invoke(ClusterableRemoteRef.java:285)
 at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_399vcw_EOImpl_12130_WLStub.updateTaskOutcome(Unknown Source)
 at oracle.bpel.services.workflow.task.client.TaskServiceRemoteClient.updateTaskOutcome(TaskServiceRemoteClient.java:2213)
 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 oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invokeTarget(WFClientRetryInvocationHandler.java:141)
 at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invoke(WFClientRetryInvocationHandler.java:80)
 at com.sun.proxy.$Proxy579.updateTaskOutcome(Unknown Source)
 at oracle.bpm.workspace.model.common.ExecutionBean.approveTask(ExecutionBean.java:311)
 at oracle.bpm.workspace.model.common.ExecutionBean.handleExternalInstanceExecution(ExecutionBean.java:185)
 at oracle.bpm.workspace.model.application.ApplicationBean.execute(ApplicationBean.java:193)
 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 com.sun.el.parser.AstValue.invoke(AstValue.java:254)
 at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)
 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.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:189)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:170)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:189)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:170)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:189)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:170)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:111)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)
 at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:115)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at oracle.adf.view.rich.event.ProxyEvent.broadcastWrappedEvent(ProxyEvent.java:72)
 at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:124)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at oracle.adf.view.rich.event.ProxyEvent.broadcastWrappedEvent(ProxyEvent.java:72)
 at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:124)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:111)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)
 at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:115)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:111)
 at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
 at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)
 at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)
 at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:115)
 at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
 at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._invokeApplication(LifecycleImpl.java:1074)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:402)
 at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:225)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
 at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
 at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
 at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)
 at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.help.web.rich.OHWFilter.doFilter(OHWFilter.java:189)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:192)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)
 at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:327)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:229)
 at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:202)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
 at java.security.AccessController.doPrivileged(Native Method)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
 at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
 at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
 at java.security.AccessController.doPrivileged(Native Method)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
 at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
 at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:220)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
 at java.security.AccessController.doPrivileged(Native Method)
 at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
 at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
 at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
 at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
 at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
 at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)
 at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)
 at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
 at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
 at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
 at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)
 at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)
 at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
 at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1572)
 at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
 at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
 at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)

]]

I tried it with a "stripped-down-to-the-bone" simple BPM project with only a simple HumanTask based on a simple DataObject with only 2 string attributes. And a auto-generated taskform. And again the fault occurs. When we rollback the patch the initiator functionality work again.

So be carefull applying this patch when using Initiator Tasks.

2015-02-03:  Update: I added the correct English message above. On the SOA Proactive Support blog is stated that there is a pre-requisite patch: "Patch 20163149: DATAOBJECT ASSIGNMENT LOST AFTER DEHYDRATION". The readme states 20333237, but this is incorrect. But unfortunately applying this patch does not solve the problem. So still be carefull with applying this bundle patch.