Exception on submitting the task

Hi All,
In the BPM workspace, when I try to submit a task. I am getting an exception. This behavior is only specific to one task and other tasks are working fine. Below is the exception and stack trace:
Error while querying workflow task WFTaskTable.
Check the underlying exception and the database connection information. If the error persists, contact Oracle Support Services. .
ORABPEL-9708
Error while querying workflow task WFTaskTable .
Error while querying workflow task WFTaskTable.
Check the underlying exception and the database connection information. If the error persists, contact Oracle Support Services. .
                at oracle.bpel.services.workflow.repos.driver.WFTask.getWFTask(WFTask.java:3375)
                at oracle.bpel.services.workflow.repos.driver.WFTask.getWFTask(WFTask.java:3257)
                at oracle.bpel.services.workflow.repos.driver.WFTask.getWFTask(WFTask.java:3434)
                at oracle.bpel.services.workflow.repos.driver.PersistencyService.getWFTask(PersistencyService.java:541)
                at oracle.bpel.services.workflow.task.impl.WorkflowUtil.getTask(WorkflowUtil.java:1206)
                at oracle.bpel.services.workflow.task.impl.TaskAggregator.onTaskUpdated(TaskAggregator.java:485)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperationInTrans(TaskService.java:6600)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6329)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6279)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6255)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6237)
                at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcomeAndEvaluateRoutingSlip(TaskService.java:3440)
                at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcome(TaskService.java:3155)
                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 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 $Proxy276.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean.updateTaskOutcome(TaskServiceBean.java:582)
                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.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.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
                at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
                at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
                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 $Proxy327.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl.__WL_invoke(Unknown Source)
                at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:40)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl_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.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl_1036_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:39)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
                at java.lang.reflect.Method.invoke(Method.java:597)
                at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invokeTarget(WFClientRetryInvocationHandler.java:133)
                at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invoke(WFClientRetryInvocationHandler.java:72)
                at $Proxy548.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.datacontrol.WorkflowService.invokeOutcomeMethod(WorkflowService.java:918)
                at oracle.bpel.services.workflow.datacontrol.WorkflowService.invokeWorkflowDCMethods(WorkflowService.java:299)
                at oracle.bpel.services.datacontrol.XSDDataControl.invokeWorkflowOperation(XSDDataControl.java:376)
                at oracle.bpel.services.datacontrol.XSDDataControl.invokeOperation(XSDDataControl.java:470)
                at oracle.adf.model.bean.DCBeanDataControl.invokeMethod(DCBeanDataControl.java:432)
                at oracle.adf.model.binding.DCInvokeMethod.callMethod(DCInvokeMethod.java:261)
                at oracle.jbo.uicli.binding.JUCtrlActionBinding.doIt(JUCtrlActionBinding.java:1635)
                at oracle.adf.model.binding.DCDataControl.invokeOperation(DCDataControl.java:2150)
                at oracle.adf.model.bean.DCBeanDataControl.invokeOperation(DCBeanDataControl.java:469)
                at oracle.adf.model.adapter.AdapterDCService.invokeOperation(AdapterDCService.java:313)
                at oracle.jbo.uicli.binding.JUCtrlActionBinding.invoke(JUCtrlActionBinding.java:740)
                at oracle.adf.controller.v2.lifecycle.PageLifecycleImpl.executeEvent(PageLifecycleImpl.java:402)
                at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding._execute(FacesCtrlActionBinding.java:252)
                at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding.execute(FacesCtrlActionBinding.java:210)
                at oracle.bpel.services.workflow.worklist.adf.InvokeActionBean.invokeOperation(InvokeActionBean.java:370)
                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(AstValue.java:187)
                at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
                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 javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
                at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
                at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._invokeApplication(LifecycleImpl.java:889)
                at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:379)
                at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:194)
                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:301)
                at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
                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.bpel.services.workflow.client.worklist.util.WorkflowFilter.doFilter(WorkflowFilter.java:278)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
                at oracle.bpel.services.workflow.client.worklist.util.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:70)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
                at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:179)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
                at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
                at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
                at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
                at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
                at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
                at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
                at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
                at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
                at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
                at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
                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:2273)
                at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
                at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
                at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
                at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Caused By: java.lang.ArrayIndexOutOfBoundsException: 1
                at oracle.bpel.services.workflow.repos.Util.getAssigneeIdentity(Util.java:1563)
                at oracle.bpel.services.workflow.repos.driver.WFTask.setValuesFromResultSet(WFTask.java:4090)
                at oracle.bpel.services.workflow.repos.driver.WFTask.getWFTask(WFTask.java:3300)
                at oracle.bpel.services.workflow.repos.driver.WFTask.getWFTask(WFTask.java:3257)
                at oracle.bpel.services.workflow.repos.driver.WFTask.getWFTask(WFTask.java:3434)
                at oracle.bpel.services.workflow.repos.driver.PersistencyService.getWFTask(PersistencyService.java:541)
                at oracle.bpel.services.workflow.task.impl.WorkflowUtil.getTask(WorkflowUtil.java:1206)
                at oracle.bpel.services.workflow.task.impl.TaskAggregator.onTaskUpdated(TaskAggregator.java:485)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperationInTrans(TaskService.java:6600)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6329)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6279)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6255)
                at oracle.bpel.services.workflow.task.impl.TaskService.performPostActionOperation(TaskService.java:6237)
                at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcomeAndEvaluateRoutingSlip(TaskService.java:3440)
                at oracle.bpel.services.workflow.task.impl.TaskService.updateTaskOutcome(TaskService.java:3155)
                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 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 $Proxy276.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean.updateTaskOutcome(TaskServiceBean.java:582)
                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.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.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
                at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
                at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
                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 $Proxy327.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl.__WL_invoke(Unknown Source)
                at weblogic.ejb.container.internal.SessionRemoteMethodInvoker.invoke(SessionRemoteMethodInvoker.java:40)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl_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.bpel.services.workflow.task.ejb.TaskServiceBean_ua8c6d_EOImpl_1036_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:39)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
                at java.lang.reflect.Method.invoke(Method.java:597)
                at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invokeTarget(WFClientRetryInvocationHandler.java:133)
                at oracle.bpel.services.workflow.client.WFClientRetryInvocationHandler.invoke(WFClientRetryInvocationHandler.java:72)
                at $Proxy548.updateTaskOutcome(Unknown Source)
                at oracle.bpel.services.workflow.datacontrol.WorkflowService.invokeOutcomeMethod(WorkflowService.java:918)
                at oracle.bpel.services.workflow.datacontrol.WorkflowService.invokeWorkflowDCMethods(WorkflowService.java:299)
                at oracle.bpel.services.datacontrol.XSDDataControl.invokeWorkflowOperation(XSDDataControl.java:376)
                at oracle.bpel.services.datacontrol.XSDDataControl.invokeOperation(XSDDataControl.java:470)
                at oracle.adf.model.bean.DCBeanDataControl.invokeMethod(DCBeanDataControl.java:432)
                at oracle.adf.model.binding.DCInvokeMethod.callMethod(DCInvokeMethod.java:261)
                at oracle.jbo.uicli.binding.JUCtrlActionBinding.doIt(JUCtrlActionBinding.java:1635)
                at oracle.adf.model.binding.DCDataControl.invokeOperation(DCDataControl.java:2151)
                at oracle.adf.model.bean.DCBeanDataControl.invokeOperation(DCBeanDataControl.java:469)
                at oracle.adf.model.adapter.AdapterDCService.invokeOperation(AdapterDCService.java:313)
                at oracle.jbo.uicli.binding.JUCtrlActionBinding.invoke(JUCtrlActionBinding.java:740)
                at oracle.adf.controller.v2.lifecycle.PageLifecycleImpl.executeEvent(PageLifecycleImpl.java:402)
                at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding._execute(FacesCtrlActionBinding.java:252)
                at oracle.adfinternal.view.faces.model.binding.FacesCtrlActionBinding.execute(FacesCtrlActionBinding.java:210)
                at oracle.bpel.services.workflow.worklist.adf.InvokeActionBean.invokeOperation(InvokeActionBean.java:370)
                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(AstValue.java:187)
                at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
                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 javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
                at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
                at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._invokeApplication(LifecycleImpl.java:890)
                at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:379)
                at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:194)
                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:301)
                at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
                at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:447)
                at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
                at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:447)
                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:57)
                at oracle.bpel.services.workflow.client.worklist.util.WorkflowFilter.doFilter(WorkflowFilter.java:278)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at oracle.bpel.services.workflow.client.worklist.util.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:71)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:180)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
                at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
                at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
                at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
                at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
                at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
                at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
                at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730)
                at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
                at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
                at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
                at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
                at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
                at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
                at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
>
Thanks,
Ravi Piplani

Maybe you are facing this bug: Bug 16874660 : ARRAYINDEXOUTOFBOUNDSEXCEPTION WHEN PROCESSING INSTANCES
And there is a patch related: Patch 16417839: ERROR WHEN UPDATING PAYLOAD OF HUMANTASK
Although it is a different situation,this note shows a similar stacktrace: SOA 11g: Error when Updating Payload of Human Task [ID 1551268.1]
I would recommend you open a SR on Metalink to make sure whether this patch can solve your problem or not.
Regards
Luis Fernando Heckler

Similar Messages

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    table cube_instance
    - cikey (integer) – primary key … foreign key for other tables
    - domain_ref (smallint) – domain identifier is encoded as a integer to save space, can be resolved by joining with domain.domain_ref.
    - process_id (varchar) – process id
    - revision_tag (varchar) – revision tag
    - creation_date (date)
    - creator (varchar) – user who created instance … currently not used
    - modify_date (date) – date instance was last modified
    - modifier (varchar) – user who last modified instance … currently not used
    - state (integer) – current state of instance, see com.oracle.bpel.client.IInstanceConstants for values
    - priority (integer) – current instance priority (user specified, has no impact on engine)
    - title (varchar) – current instance title (user specified, no engine impact)
    - status (varchar) – current status (user specified)
    - stage (varchar) – current stage (user specified)
    - conversation_id (varchar) – extra identifier associated with instance, eg. if passed in via WS-Addressing or user specified custom key.
    - root_id (varchar) – the conversation id of the instance at the top of the invocation tree. Suppose A -> B -> C, root( B ) = A, root( C ) = A, parent( B ) = A, parent( C ) = B. This instance, instance at the top of the tree will not have this set.
    - parent_id (varchar) – the conversation id of the parent instance that created this instance, instance at the top of the tree will not have this set.
    - scope_revision (integer) – internal checksum of scope bytes … used to keep caches in sync
    - scope_csize (integer) – compressed size of instance scope in bytes
    - scope_usize (integer) – uncompressed size of instance scope in bytes
    - process_guid (varchar) – unique identifier for the process this instance belongs to … if changes need to be made for all instances of a process, this column is used to query (eg. stale process).
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    table cube_scope
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    - domain_ref (integer) – domain identifier
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    table work_item
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    - domain_ref (integer) – domain identifier
    - creation_date (date)
    - creator (varchar) – user who created work item … currently not used
    - modify_date (date) – date work item was last modified
    - modifier (varchar) – user who last modified work item … currently not used
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    - transition (integer) – internal use, used by engine for routing logic
    - exception (integer) – no longer used
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    - exp_flag (integer) – set if a work item has been called back by the expiration agent (ie. expired).
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    - label (varchar) – current label (user specified, no engine impact)
    - custom_id (varchar) – custom identifier (user specified, no engine impact)
    - comments (varchar) – comment field (user specified, no engine impact)
    - reference_id (varchar) -
    - idempotent_flag (integer) – internal use
    - process_guid (varchar) – unique identifier for the process this work item belongs to … if changes need to be made for all instances of a process, this column is used to query (eg. stale process).
    table document
    - dockey (varchar) – primary key for document
    - cikey (integer) – foreign key
    - domain_ref (integer) – domain identifier
    - classname (varchar) – no longer used
    - bin_csize (integer) – compressed size of document in bytes
    - bin_usize (integer) – uncompressed size of document in bytes
    - bin (blob) – document bytes
    - modify_date (date) – date document was last modified
    table audit_trail
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    - count_id (integer) – many audit trail entries may be made for each instance, this column is incremented for each entry per instance.
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    - block_csize (integer) – compressed size of block in bytes
    - block_usize (integer) – uncompressed size of block in bytes
    - log (raw) – block bytes
    table audit_details
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    - domain_ref (integer) – domain identifier
    - detail_id (integer) – part of composite key, means of identifying particular detail from the audit trail
    - bin_csize (integer) – compressed size of detail in bytes
    - bin_usize (integer) – uncompressed size of detail in bytes
    - bin (blob) – detail bytes
    table dlv_message
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    - process_id (varchar) – identifier for process to deliver the message to
    - revision_tag (varchar) – identifier for process revision
    - operation_name (varchar) – operation name for callback port.
    - receive_date (date) – date message was received by engine
    - state (integer) – current state of message … see com.oracle.bpel.client.IDeliveryConstants for values
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    table dlv_message_bin
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    - domain_ref (integer) – domain identifier
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    - bin_usize (integer) – uncompressed size of delivery message payload in bytes
    - bin (blob) – delivery message payload
    table dlv_subscription
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    - conv_type (integer) – internal use
    - cikey (integer) – foreign key
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    - process_guid (varchar) – guid for process this subscription belongs to
    - operation_name (varchar) – operation name for subscription (receive, onMessage operation name).
    - subscriber_id (varchar) – the work item composite key that this subscription is positioned at (ie. the key for the receive, onMessage work item).
    - service_name (varchar) – internal use
    - subscription_date (date) – date subscription was created
    - state (integer) – current state of subscription … see com.oracle.bpel.client.IDeliveryConstants for values
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    table invoke_message
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    - message_guid (varchar) – unique identifier for message, generated when invocation message is received by engine.
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    - domain_ref (integer) – domain identifier
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