NPE at com.liferay.portal.kernel.lar.BaseStagedModelDataHandler.importStagedModel()

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.10 EE GA1, 7.0.0 Alpha 2
• Fix Version/s: 6.2.2 CE GA3 , 6.2.X EE
• Component/s: Content Publishing > Staging
• Labels:
  • QA-AUTOMATION
  • QA-TP
  • liferay-fixpack-wcm-core-16-6210
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 13
• Fix Priority: 5
• OS:
  Red Hat Enterprise 6
• JDK:
  Oracle Sun JDK 7
• Application Servers:
  Apache Tomcat 7.0.42
• Browsers:
  Chrome 28
• Databases:
  Oracle Database 11.2
• Epic Link: Escalation
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal-ee/pull/6030

When publishing from staging to live, the following exceptions are risen:

14:20:22,816 ERROR [liferay/background_task-1][BackgroundTaskMessageListener:133] Unable to execute background task
com.liferay.portal.kernel.lar.PortletDataException: java.lang.NullPointerException
at com.liferay.portal.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.java:170)
at com.liferay.portal.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:318)
at com.liferay.portal.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:308)
at com.liferay.portlet.journal.lar.JournalPortletDataHandler.doImportData(JournalPortletDataHandler.java:272)
at com.liferay.portal.kernel.lar.BasePortletDataHandler.importData(BasePortletDataHandler.java:332)
at com.liferay.portal.lar.PortletImporter.importPortletData(PortletImporter.java:188)
at com.liferay.portal.lar.PortletImporter.importPortletData(PortletImporter.java:1004)
at com.liferay.portal.lar.LayoutImporter.doImportLayouts(LayoutImporter.java:598)
at com.liferay.portal.lar.LayoutImporter.importLayouts(LayoutImporter.java:117)
at com.liferay.portal.service.impl.LayoutLocalServiceImpl.importLayouts(LayoutLocalServiceImpl.java:1761)
at com.liferay.portal.service.impl.LayoutLocalServiceImpl.importLayouts(LayoutLocalServiceImpl.java:1810)
...

Caused by: java.lang.NullPointerException
at com.liferay.portal.kernel.lar.StagedModelDataHandlerUtil._getStagedModel(StagedModelDataHandlerUtil.java:325)
at com.liferay.portal.kernel.lar.StagedModelDataHandlerUtil.importStagedModel(StagedModelDataHandlerUtil.java:306)
at com.liferay.portal.kernel.lar.StagedModelDataHandlerUtil.importReferenceStagedModel(StagedModelDataHandlerUtil.java:229)
at com.liferay.portal.lar.ExportImportHelperImpl.replaceImportDLReferences(ExportImportHelperImpl.java:955)
at com.liferay.portal.kernel.lar.ExportImportHelperUtil.replaceImportDLReferences(ExportImportHelperUtil.java:185)
at com.liferay.portal.lar.ExportImportHelperImpl.replaceImportContentReferences(ExportImportHelperImpl.java:903)
at com.liferay.portal.kernel.lar.ExportImportHelperUtil.replaceImportContentReferences(ExportImportHelperUtil.java:175)
at com.liferay.portlet.journal.lar.JournalArticleStagedModelDataHandler.doImportStagedModel(JournalArticleStagedModelDataHandler.java:417)
at com.liferay.portlet.journal.lar.JournalArticleStagedModelDataHandler.doImportStagedModel(JournalArticleStagedModelDataHandler.java:1)
at com.liferay.portal.kernel.lar.BaseStagedModelDataHandler.importStagedModel(BaseStagedModelDataHandler.java:161)

The same problem occurs if exporting site content to a .lar and then importing it with default options.