NPE in CachingFieldConfigContextPersister

java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
	at java.util.concurrent.FutureTask.get(FutureTask.java:83)
	at com.atlassian.jira.task.TaskDescriptorImpl.getResult(TaskDescriptorImpl.java:118)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportService.getProjectImportStatus(DefaultArchiveImportService.java:231)
	at com.atlassian.jira.archiving.rest.ArchivingResource.getImportStatus(ArchivingResource.java:147)  <+2> (DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)  <+3> (DispatchProviderHelper.java:234) (DispatchProviderHelper.java:100) (DefaultMethodInvocation.java:61)
	at com.atlassian.jira.archiving.rest.exception.ExceptionInterceptor.intercept(ExceptionInterceptor.java:59)  <+15> (DefaultMethodInvocation.java:61) (DispatchProviderHelper.java:132) (DispatchProviderHelper.java:230) (ResourceJavaMethodDispatcher.java:75) (HttpMethodRule.java:288) (RightHandPathRule.java:147) (ResourceClassRule.java:108) (RightHandPathRule.java:147) (RootResourceClassesRule.java:84) (WebApplicationImpl.java:1469) (WebApplicationImpl.java:1400) (WebApplicationImpl.java:1349) (WebApplicationImpl.java:1339) (WebComponent.java:416) (ServletContainer.java:537)
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:178)  <+1> (ServletContainer.java:795)
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:73)  <+16> (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (ServletFilterModuleContainerFilter.java:77) (ServletFilterModuleContainerFilter.java:63) (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (DelegatingPluginFilter.java:66) (RestServletUtilsUpdaterFilter.java:26) (RestServletUtilsUpdaterFilter.java:40) (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (DelegatingPluginFilter.java:66) (ContextFilter.java:25) (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (DelegatingPluginFilter.java:66)
	at com.atlassian.mywork.client.filter.ServingRequestsFilter.doFilter(ServingRequestsFilter.java:37)  <+15> (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (ServletFilterModuleContainerFilter.java:77) (ServletFilterModuleContainerFilter.java:63) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (AccessLogFilter.java:103) (AccessLogFilter.java:87) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (XsrfTokenAdditionRequestFilter.java:54) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (IteratingFilterChain.java:46) (DelegatingPluginFilter.java:66)
	at com.atlassian.labs.remoteapps.modules.permissions.ApiScopingFilter.doFilter(ApiScopingFilter.java:60)  <+22> (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (ServletFilterModuleContainerFilter.java:77) (ServletFilterModuleContainerFilter.java:63) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (SecurityFilter.java:234) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (TrustedApplicationsFilter.java:98) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (BaseLoginFilter.java:169) (JiraLoginFilter.java:70) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (IteratingFilterChain.java:46) (DelegatingPluginFilter.java:66) (OAuthFilter.java:55) (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (DelegatingPluginFilter.java:66)
	at com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:40)  <+18> (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (ServletFilterModuleContainerFilter.java:77) (ServletFilterModuleContainerFilter.java:63) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (AbstractJohnsonFilter.java:71) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (UrlRewriteFilter.java:738) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (GzipFilter.java:80) (GzipFilter.java:51) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (IteratingFilterChain.java:46) (DelegatingPluginFilter.java:66)
	at com.atlassian.labs.remoteapps.modules.oauth.OAuth2LOFilter.doFilter(OAuth2LOFilter.java:70)  <+3> (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (DelegatingPluginFilter.java:66)
	at com.atlassian.labs.remoteapps.util.http.bigpipe.RequestIdSettingFilter.doFilter(RequestIdSettingFilter.java:22)  <+43> (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (DelegatingPluginFilter.java:66) (JWDSendRedirectFilter.java:25) (DelegatingPluginFilter.java:74) (IteratingFilterChain.java:42) (ServletFilterModuleContainerFilter.java:77) (ServletFilterModuleContainerFilter.java:63) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (ChainedFilterStepRunner.java:78) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (AbstractCachingFilter.java:33) (AbstractHttpFilter.java:31) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (AbstractEncodingFilter.java:41) (AbstractHttpFilter.java:31) (PathMatchingEncodingFilter.java:45) (AbstractHttpFilter.java:31) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (JiraStartupChecklistFilter.java:74) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (MultiTenantServletFilter.java:91) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (ChainedFilterStepRunner.java:78) (ApplicationFilterChain.java:243) (ApplicationFilterChain.java:210) (StandardWrapperValve.java:225) (StandardContextValve.java:123) (AuthenticatorBase.java:472) (StandardHostValve.java:168) (ErrorReportValve.java:98) (StandardEngineValve.java:118) (AccessLogValve.java:927) (CoyoteAdapter.java:407) (AbstractHttp11Processor.java:1001) (AbstractProtocol.java:585) (JIoEndpoint.java:310)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
	at com.atlassian.jira.issue.context.persistence.CachingFieldConfigContextPersister$CustomFieldMatcher.apply(CachingFieldConfigContextPersister.java:348)
	at com.atlassian.jira.issue.context.persistence.CachingFieldConfigContextPersister$CustomFieldMatcher.apply(CachingFieldConfigContextPersister.java:336)
	at com.atlassian.jira.issue.context.persistence.CachingFieldConfigContextPersister.invalidateMatchingKeys(CachingFieldConfigContextPersister.java:203)
	at com.atlassian.jira.issue.context.persistence.CachingFieldConfigContextPersister.store(CachingFieldConfigContextPersister.java:157)
	at com.atlassian.jira.issue.fields.config.manager.FieldConfigSchemeManagerImpl.setValue(FieldConfigSchemeManagerImpl.java:85)
	at com.atlassian.jira.archiving.util.IssueTypeSchemeHelper.associate(IssueTypeSchemeHelper.java:50)
	at com.atlassian.jira.archiving.service.dest.persistence.FieldConfigurationPersisterHandler.handleEntity(FieldConfigurationPersisterHandler.java:169)
	at com.atlassian.jira.imports.project.handler.ChainedSaxHandler.endTopLevelElement(ChainedSaxHandler.java:250)
	at com.atlassian.jira.imports.project.handler.ChainedSaxHandler.endElement(ChainedSaxHandler.java:195)
	at com.atlassian.jira.imports.project.handler.ChainedSaxHandler.endElement(ChainedSaxHandler.java:150)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(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.imports.xml.DefaultBackupXmlParser.parseBackupXml(DefaultBackupXmlParser.java:57)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportManager.importSchemeEntities(DefaultArchiveImportManager.java:1211)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportManager.doImport(DefaultArchiveImportManager.java:712)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportService.doImport(DefaultArchiveImportService.java:644)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportService.importProject(DefaultArchiveImportService.java:512)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportService.importArchive(DefaultArchiveImportService.java:356)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportService$ProjectImportTask.call(DefaultArchiveImportService.java:795)
	at com.atlassian.jira.archiving.service.dest.DefaultArchiveImportService$ProjectImportTask.call(DefaultArchiveImportService.java:776)
	at com.atlassian.jira.task.TaskManagerImpl$TaskCallableDecorator.call(TaskManagerImpl.java:366)
	at java.util.concurrent.FutureTask$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)