java.lang.NullPointerException: This exception has no message.

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at com.tcclient.cache.CacheDataStore.needsUpdate(
at com.tcclient.cache.CacheDataStore.updateTimestampIfNeeded(
at com.tcclient.cache.CacheDataStore.get(
at com.tcclient.ehcache.TimeExpiryMap.get(
at net.sf.ehcache.Cache.searchInMemoryStore(
at net.sf.ehcache.Cache.get(
at org.hibernate.cache.ReadWriteCache.put(
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(
at org.hibernate.loader.Loader.doQuery(
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(
at org.hibernate.loader.Loader.doList(
at org.hibernate.loader.Loader.listIgnoreQueryCache(
at org.hibernate.loader.Loader.list(
at org.hibernate.impl.SessionImpl.list(
at org.hibernate.impl.CriteriaImpl.list(

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