Steps to reproduce:

1. Create a project
2. Create a new Area for the project
3. Assign an explicit user as the primary contact for the Area created
4. Import to JIRA and it will fail while importing components:

   2011-09-19 10:45:16,303 INFO - ------------------------------
   2011-09-19 10:45:16,306 INFO - Importing: Components
   2011-09-19 10:45:16,307 INFO - ------------------------------
   2011-09-19 10:45:16,309 INFO - Only new items will be imported
   2011-09-19 10:45:17,095 INFO - Importing component testcomponent
   2011-09-19 10:45:17,097 ERROR - Unexpected failure occurred. Importer will stop immediately. Data maybe in an unstable state
   java.lang.NullPointerException
   	at com.atlassian.jira.plugins.importer.imports.importer.impl.DefaultJiraDataImporter.importComponents(DefaultJiraDataImporter.java:633)
   	at com.atlassian.jira.plugins.importer.imports.importer.impl.DefaultJiraDataImporter.doImport(DefaultJiraDataImporter.java:286)
   	at com.atlassian.jira.plugins.importer.imports.importer.impl.ImporterCallable.call(ImporterCallable.java:25)
   	at com.atlassian.jira.plugins.importer.imports.importer.impl.ImporterCallable.call(ImporterCallable.java:14)
   	at com.atlassian.jira.task.TaskManagerImpl$TaskCallableDecorator.call(TaskManagerImpl.java:359)
   	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
   	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
   	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
   	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
   	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
   	at com.atlassian.multitenant.impl.DefaultMultiTenantManager.runForTenant(DefaultMultiTenantManager.java:61)
   	at com.atlassian.multitenant.juc.MultiTenantExecutors$WrappedRunnable.run(MultiTenantExecutors.java:160)
   	at com.atlassian.jira.task.ForkedThreadExecutor$ForkedRunnableDecorator.run(ForkedThreadExecutor.java:249)
   	at java.lang.Thread.run(Thread.java:662)
   2011-09-19 10:45:17,904 INFO - No issues need to be reindexed.