What is the origin of a NestedServletException?

Question

Lately I've been working with the Hybris platform and I encountered an exception in my Tomcat today. The issue is I can't seem to find any valuable information about what a NestedServletException is or why it's thrown. At the moment my priority is to understand the concept, then after solve it.

In case it's usefull, I'll attach the StackTrace:

Estado HTTP 500 - Error while processing internal filterchain. Exception occurred at chain position: 5 of 15. Current filter: 'es.logista.storefront.filters.cms.CMSSiteFilter@539dc64a'!; nested exception is java.lang.NullPointerException

type Informe de Excepción

mensaje Error while processing internal filterchain. Exception occurred at chain position: 5 of 15. Current filter: 'es.logista.storefront.filters.cms.CMSSiteFilter@539dc64a'!; nested exception is java.lang.NullPointerException

descripción El servidor encontró un error interno que hizo que no pudiera rellenar este requerimiento.

excepción

org.springframework.web.util.NestedServletException: Error while processing internal filterchain. Exception occurred at chain position: 5 of 15. Current filter: 'es.logista.storefront.filters.cms.CMSSiteFilter@539dc64a'!; nested exception is java.lang.NullPointerException
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:234)
    es.logista.storefront.filters.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:89)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    es.logista.storefront.filters.AcceleratorAddOnFilter.doFilter(AcceleratorAddOnFilter.java:92)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    de.hybris.platform.servicelayer.web.SessionFilter.doFilter(SessionFilter.java:73)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    de.hybris.platform.servicelayer.web.Log4JFilter.doFilter(Log4JFilter.java:47)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain.doFilterInternal(AbstractPlatformFilterChain.java:156)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    es.logista.storefront.filters.AcceleratorAddOnFilter.doFilter(AcceleratorAddOnFilter.java:92)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
    de.hybris.platform.servicelayer.web.XSSFilter.doFilter(XSSFilter.java:230)

causa raíz

java.lang.NullPointerException
    java.util.concurrent.ConcurrentHashMap.get(Unknown Source)
    de.hybris.platform.persistence.property.PersistenceInfoCache.getCachedExternalTableTypes(PersistenceInfoCache.java:70)
    de.hybris.platform.persistence.property.DBPersistenceManager.getExternalTableTypes(DBPersistenceManager.java:883)
    de.hybris.platform.persistence.flexiblesearch.typecache.impl.DefaultFlexibleSearchTypeCacheProvider.getExternalTableTypes(DefaultFlexibleSearchTypeCacheProvider.java:137)
    de.hybris.platform.persistence.flexiblesearch.ParsedType.<init>(ParsedType.java:93)
    de.hybris.platform.persistence.flexiblesearch.ParsedType.<init>(ParsedType.java:78)
    de.hybris.platform.persistence.flexiblesearch.FromClause.createSingleType(FromClause.java:89)
    de.hybris.platform.persistence.flexiblesearch.FromClause.translateNested(FromClause.java:73)
    de.hybris.platform.persistence.flexiblesearch.ParsedText$2.translate(ParsedText.java:269)
    de.hybris.platform.persistence.flexiblesearch.FlexibleSearchTools.replace(FlexibleSearchTools.java:310)
    de.hybris.platform.persistence.flexiblesearch.ParsedText.translate(ParsedText.java:263)
    de.hybris.platform.persistence.flexiblesearch.FromClause.translate(FromClause.java:48)
    de.hybris.platform.persistence.flexiblesearch.ParsedQuery.translate(ParsedQuery.java:401)
    de.hybris.platform.persistence.flexiblesearch.ParsedQuery.getTranslatedQuery(ParsedQuery.java:181)
    de.hybris.platform.persistence.flexiblesearch.QueryParser.translateQuery(QueryParser.java:229)
    de.hybris.platform.jalo.flexiblesearch.FlexibleSearch.translate(FlexibleSearch.java:2007)
    de.hybris.platform.jalo.flexiblesearch.FlexibleSearch.search(FlexibleSearch.java:1412)
    de.hybris.platform.jalo.flexiblesearch.FlexibleSearch.search(FlexibleSearch.java:1628)
    de.hybris.platform.servicelayer.search.impl.DefaultFlexibleSearchService$2.execute(DefaultFlexibleSearchService.java:374)
    de.hybris.platform.servicelayer.search.impl.DefaultFlexibleSearchService$2.execute(DefaultFlexibleSearchService.java:1)
    de.hybris.platform.servicelayer.session.impl.DefaultSessionService.executeInLocalView(DefaultSessionService.java:91)
    de.hybris.platform.servicelayer.search.impl.DefaultFlexibleSearchService.getJaloResult(DefaultFlexibleSearchService.java:363)
    de.hybris.platform.servicelayer.search.impl.DefaultFlexibleSearchService.search(DefaultFlexibleSearchService.java:164)
    de.hybris.platform.servicelayer.internal.dao.AbstractItemDao.search(AbstractItemDao.java:70)
    de.hybris.platform.cms2.servicelayer.daos.impl.DefaultCMSSiteDao.findAllCMSSites(DefaultCMSSiteDao.java:42)
    de.hybris.platform.cms2.servicelayer.services.impl.DefaultCMSSiteService.getSites(DefaultCMSSiteService.java:317)
    de.hybris.platform.cms2.servicelayer.services.impl.DefaultCMSSiteService.getSiteForURL(DefaultCMSSiteService.java:269)
    de.hybris.platform.acceleratorcms.context.impl.DefaultContextInformationLoader.initializeSiteFromRequest(DefaultContextInformationLoader.java:98)
    es.logista.storefront.filters.cms.CMSSiteFilter.processNormalRequest(CMSSiteFilter.java:161)
    es.logista.storefront.filters.cms.CMSSiteFilter.doFilterInternal(CMSSiteFilter.java:97)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    es.logista.storefront.filters.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:89)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    es.logista.storefront.filters.AcceleratorAddOnFilter.doFilter(AcceleratorAddOnFilter.java:92)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    de.hybris.platform.servicelayer.web.SessionFilter.doFilter(SessionFilter.java:73)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    de.hybris.platform.servicelayer.web.Log4JFilter.doFilter(Log4JFilter.java:47)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain$InternalFilterChain.doFilter(AbstractPlatformFilterChain.java:226)
    de.hybris.platform.servicelayer.web.AbstractPlatformFilterChain.doFilterInternal(AbstractPlatformFilterChain.java:156)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    es.logista.storefront.filters.AcceleratorAddOnFilter.doFilter(AcceleratorAddOnFilter.java:92)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
    de.hybris.platform.servicelayer.web.XSSFilter.doFilter(XSSFilter.java:230)

nota La traza completa de la causa de este error se encuentra en los archivos de diario de Apache Tomcat/7.0.59.

The root cause is the fact that you get a `NullPointerException`. Which is somewhere in your chain wrapped in a `NestedServletException`. — M. Deinum, Feb 15 '16 at 09:58
You need to run a system update, you modified the typesystem but your db is not aware of the change, so your'e getting a null pointer from a flexible search query. — Juan, Feb 15 '16 at 10:26
@Juan we eventually found out that we had to initialize the system... stupid of us, but thanks for the tip! :) — Javier García Manzano, Feb 18 '16 at 12:09

score 15 · Accepted Answer · edited May 23 '17 at 12:16

15

Nested Exceptions are exceptions wrapped up in another exception. People do that for multiple reasons (some of them mentioned here).

As you can see in the stack trace the root exception is a nullpointer exception.

So basically your NestedServletException is nothing but a NullpointerException that is caught & thrown again at some point, but wrapped up in a ServletException.

edited May 23 '17 at 12:16

Community

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answered Feb 15 '16 at 10:45

Seth

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Thanks @Seth! Seen that way it seems pretty obvious, but it hadn't come up to my mind :) – Javier García Manzano Feb 18 '16 at 12:08

What is the origin of a NestedServletException?

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