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java.lang.NullPointerException at java.util.AbstractCollection.addAll(AbstractCollection.java:333) at com.atlassian.jira.imports.project.util.XMLEscapeUtil.unicodeInPlaceEncode(XMLEscapeUtil.java:201) at com.atlassian.jira.imports.project.util.XMLEscapeUtil.unicodeInPlaceEncode(XMLEscapeUtil.java:154) at com.atlassian.jira.util.xml.XMLEscapingReader.read(XMLEscapingReader.java:66) at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source) at org.apache.xerces.impl.XMLEntityScanner.peekChar(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanCDATASection(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at com.atlassian.jira.bc.dataimport.DefaultDataImportService.parseXmlAndValidateBackupData(DefaultDataImportService.java:303) at com.atlassian.jira.bc.dataimport.DefaultDataImportService.doImport(DefaultDataImportService.java:233) at com.atlassian.jira.web.action.setup.DataImportAsyncCommand.call(DataImportAsyncCommand.java:65) at com.atlassian.jira.web.action.setup.DataImportAsyncCommand.call(DataImportAsyncCommand.java:28) at com.atlassian.jira.task.ImportTaskManagerImpl$TaskCallableDecorator.call(ImportTaskManagerImpl.java:147) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at com.atlassian.multitenant.impl.DefaultMultiTenantManager.runForTenant(DefaultMultiTenantManager.java:61) at com.atlassian.multitenant.juc.MultiTenantExecutors$WrappedRunnable.run(MultiTenantExecutors.java:160) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:722)