Cannot export/import ddm structure in Global site between instances

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, Master
• Fix Version/s: 7.0.0 DXP FP82, 7.0.10.12 DXP SP12, 7.0.X, 7.1.3 CE GA4, 7.1.10 DXP FP11, 7.1.X, Master
• Component/s: Staging > Export/Import
• Labels:
  • QA-AUTOMATION
  • backend_test
  • ee-ts
  • liferay-fixpack-de-82-7010
  • liferay-fixpack-dxp-11-7110
• Branch Version/s:
  7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Last Working Version:
  7.1.10 DXP FP7
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/70159
• QA Test Name:
  • DDMStructureStagedModelDataHandlerTest#testImportStructureToGlobalSite
• QA Test Score: 5

Steps to reproduce

1. Start up a new Liferay.
2. Export the Global site, but only check contents related to Web Content (so that structure and template of Basic Web Content will be exported).
3. Create a new virtual instance and log into it.
4. Import the imported lar in step 2.
   Expected: The import process ends successfully.
   Observed: The import process fails with a message

   An unexpected error occurred with the publication process. Please check your portal and publishing configuration.
   The Dynamic Data Mapping Structure Basic Web Content could not be imported because of the following error: null.

   and a stack trace

   2019-03-07 15:19:05.311 ERROR [liferay/background_task-1][BackgroundTaskMessageListener:173] Unable to execute background task
   com.liferay.exportimport.kernel.lar.PortletDataException
   	at com.liferay.exportimport.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.java:433)
   	at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:456)
   	at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:442)
   	at com.liferay.journal.internal.exportimport.data.handler.JournalPortletDataHandler.doImportData(JournalPortletDataHandler.java:352)
   	at com.liferay.exportimport.kernel.lar.BasePortletDataHandler.importData(BasePortletDataHandler.java:383)
   	at com.liferay.exportimport.internal.controller.PortletImportControllerImpl.importPortletData(PortletImportControllerImpl.java:415)
   	at com.liferay.exportimport.internal.controller.PortletImportControllerImpl.importPortletData(PortletImportControllerImpl.java:346)
   	at com.liferay.site.internal.exportimport.data.handler.StagedGroupStagedModelDataHandler.importSitePortlets(StagedGroupStagedModelDataHandler.java:599)
   	at com.liferay.site.internal.exportimport.data.handler.StagedGroupStagedModelDataHandler.doImportStagedModel(StagedGroupStagedModelDataHandler.java:319)
   	at com.liferay.site.internal.exportimport.data.handler.StagedGroupStagedModelDataHandler.doImportStagedModel(StagedGroupStagedModelDataHandler.java:78)
   	at com.liferay.exportimport.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.java:392)
   	at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:456)
   	at com.liferay.exportimport.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:442)
   	at com.liferay.exportimport.internal.controller.LayoutImportController.doImportFile(LayoutImportController.java:580)
   	at com.liferay.exportimport.internal.controller.LayoutImportController.importFile(LayoutImportController.java:220)
   	at com.liferay.portlet.exportimport.service.impl.ExportImportLocalServiceImpl.importLayouts(ExportImportLocalServiceImpl.java:219)
   	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.lang.reflect.Method.invoke(Method.java:498)
   	at com.liferay.portal.spring.aop.AopMethodInvocation.proceed(AopMethodInvocation.java:44)
   	at com.liferay.portal.spring.transaction.TransactionInterceptor.lambda$invoke$0(TransactionInterceptor.java:61)
   	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor._execute(DefaultTransactionExecutor.java:128)
   	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:51)
   	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:59)
   	at com.liferay.portal.spring.aop.AopMethodInvocation.proceed(AopMethodInvocation.java:51)
   	at com.liferay.portal.spring.aop.AopInvocationHandler.invoke(AopInvocationHandler.java:44)
   	at com.sun.proxy.$Proxy94.importLayouts(Unknown Source)
   	at com.liferay.exportimport.kernel.service.ExportImportLocalServiceUtil.importLayouts(ExportImportLocalServiceUtil.java:122)
   	at com.liferay.exportimport.internal.background.task.LayoutImportBackgroundTaskExecutor$LayoutImportCallable.call(LayoutImportBackgroundTaskExecutor.java:128)
   	at com.liferay.exportimport.internal.background.task.LayoutImportBackgroundTaskExecutor$LayoutImportCallable.call(LayoutImportBackgroundTaskExecutor.java:114)
   	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor._execute(DefaultTransactionExecutor.java:128)
   	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:51)
   	at com.liferay.portal.spring.transaction.TransactionInvokerImpl.invoke(TransactionInvokerImpl.java:39)
   	at com.liferay.portal.kernel.transaction.TransactionInvokerUtil.invoke(TransactionInvokerUtil.java:28)
   	at com.liferay.exportimport.internal.background.task.LayoutImportBackgroundTaskExecutor.execute(LayoutImportBackgroundTaskExecutor.java:85)
   	at com.liferay.portal.background.task.internal.SerialBackgroundTaskExecutor.execute(SerialBackgroundTaskExecutor.java:62)
   	at com.liferay.portal.kernel.backgroundtask.DelegatingBackgroundTaskExecutor.execute(DelegatingBackgroundTaskExecutor.java:43)
   	at com.liferay.portal.background.task.internal.ThreadLocalAwareBackgroundTaskExecutor.execute(ThreadLocalAwareBackgroundTaskExecutor.java:75)
   	at com.liferay.portal.background.task.internal.messaging.BackgroundTaskMessageListener.doReceive(BackgroundTaskMessageListener.java:132)
   	at com.liferay.portal.kernel.messaging.BaseMessageListener.receive(BaseMessageListener.java:26)
   	at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:74)
   	at com.liferay.portal.kernel.messaging.ParallelDestination$1.run(ParallelDestination.java:52)
   	at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask._runTask(ThreadPoolExecutor.java:752)
   	at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask.run(ThreadPoolExecutor.java:664)
   	at java.lang.Thread.run(Thread.java:748)
   Caused by: java.lang.NullPointerException
   	at com.liferay.dynamic.data.mapping.web.internal.exportimport.data.handler.DDMStructureStagedModelDataHandler.doImportStagedModel(DDMStructureStagedModelDataHandler.java:350)
   	at com.liferay.dynamic.data.mapping.web.internal.exportimport.data.handler.DDMStructureStagedModelDataHandler.doImportStagedModel(DDMStructureStagedModelDataHandler.java:81)
   	at com.liferay.exportimport.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.java:392)
   	... 45 more