"Failed to complete the export process" Error While Exporting Webcenter Portal From Fusion Middleware Control (Doc ID 2110372.1)

[2015-12-14T08:48:33.774+08:00] [AdminServer] [NOTIFICATION:32] [EM-02025] [oracle.sysman.emai.view.workplace.WorkplaceAppExportViewBean] [tid: [ACTIVE].ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <USERID>] [ecid: <ECID>] [APP: em] Failed to complete the export process.[[
oracle.sysman.emSDK.app.exception.EMSystemException
at oracle.sysman.emai.model.workplace.WorkplaceJMXUtil.handleMBeanException(WorkplaceJMXUtil.java:161)
at oracle.sysman.emai.model.workplace.WorkplaceJMXUtil.handleMBeanException(WorkplaceJMXUtil.java:173)
at oracle.sysman.emai.pagemodel.workplace.WebCenterAppExportPageModel.doExport(WebCenterAppExportPageModel.java:216)
at oracle.sysman.emai.view.workplace.WorkplaceAppExportViewBean.exportWorkplaceApp(WorkplaceAppExportViewBean.java:444)
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:187)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at org.apache.myfaces.trinidadinternal.taglib.util.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:53)
at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodBinding(UIXComponentBase.java:1415)
at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:183)
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:103)
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:97)
..
..
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
Caused by: oracle.sysman.emSDK.app.exception.EMApplicationException
at oracle.sysman.emai.pagemodel.workplace.WebCenterAppExportPageModel.throwEMApplicationException(WebCenterAppExportPageModel.java:420)
at oracle.sysman.emai.pagemodel.workplace.WebCenterAppExportPageModel.doExport(WebCenterAppExportPageModel.java:124)
... 78 more
Caused by: java.io.IOException
at oracle.sysman.emai.pagemodel.workplace.WebCenterAppExportPageModel.createNewFile(WebCenterAppExportPageModel.java:371)
at oracle.sysman.emai.pagemodel.workplace.WebCenterAppExportPageModel.doExport(WebCenterAppExportPageModel.java:117)
... 78 more