NPE is thrown while importing a lar which contains an Asset Publisher that its asociated ddmtemplate was removed from system

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, 7.0.0 M3
• Fix Version/s: 6.2.3 CE GA4, 6.2.X EE, 7.0.0 M4
• Component/s: Staging, Staging > Export/Import
• Labels:
  • liferay-fixpack-portal-45-6210
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 9
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/23305

Steps to reproduce:

1. Create two new sites "lar-export" and "lar-import"
2. At "lar-export" site configuration, ADT section, add a new template for asset publishers
3. Add a page to the site "lar-export" and put an 'Asset Publisher' on it.
4. Open the configuration of the 'Asset Publisher'
5. Open "Display Settings" tab and select the previous created template at "Display Template" and click 'Save'.
6. At site configuration, ADT section, delete the created template for asset publishers
7. Export the full site "lar-export" to a lar
8. Go to site "lar-import"
9. Import previous created lar => A NullPointerException is thrown during the import.

11:33:22,493 ERROR [liferay/background_task-1][BackgroundTaskMessageListener:137] Unable to execute background task
com.liferay.portal.kernel.lar.PortletDataException: java.lang.NullPointerException
	at com.liferay.portal.kernel.lar.BasePortletDataHandler.processImportPortletPreferences(BasePortletDataHandler.java:647)
	at com.liferay.portal.lar.PortletImporter.importPortletPreferences(PortletImporter.java:891)
	at com.liferay.portal.lar.LayoutImporter.doImportLayouts(LayoutImporter.java:682)
	at com.liferay.portal.lar.LayoutImporter.importLayouts(LayoutImporter.java:136)
	at com.liferay.portal.service.impl.LayoutLocalServiceImpl.importLayouts(LayoutLocalServiceImpl.java:1818)
	at com.liferay.portal.service.impl.LayoutLocalServiceImpl.importLayouts(LayoutLocalServiceImpl.java:1866)
	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.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:149)
	at com.liferay.portal.service.impl.LayoutLocalServiceVirtualLayoutsAdvice.invoke(LayoutLocalServiceVirtualLayoutsAdvice.java:181)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.service.impl.LayoutLocalServiceStagingAdvice.invoke(LayoutLocalServiceStagingAdvice.java:139)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:53)
	at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:55)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:56)
	at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:123)
	at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:174)
	at com.sun.proxy.$Proxy67.importLayouts(Unknown Source)
	at com.liferay.portal.service.LayoutLocalServiceUtil.importLayouts(LayoutLocalServiceUtil.java:1228)
	at com.liferay.portal.lar.backgroundtask.LayoutImportBackgroundTaskExecutor.execute(LayoutImportBackgroundTaskExecutor.java:61)
	at com.liferay.portal.kernel.backgroundtask.SerialBackgroundTaskExecutor.execute(SerialBackgroundTaskExecutor.java:56)
	at com.liferay.portal.backgroundtask.messaging.BackgroundTaskMessageListener.doReceive(BackgroundTaskMessageListener.java:110)
	at com.liferay.portal.kernel.messaging.BaseMessageListener.receive(BaseMessageListener.java:26)
	at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:72)
	at com.liferay.portal.kernel.messaging.ParallelDestination$1.run(ParallelDestination.java:71)
	at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask._runTask(ThreadPoolExecutor.java:728)
	at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask.run(ThreadPoolExecutor.java:639)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
	at com.liferay.portal.kernel.lar.BasePortletDataHandler.processImportPortletPreferences(BasePortletDataHandler.java:615)
	... 47 more