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

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java.lang.NullPointerException:
at com.tcclient.cache.CacheDataStore.needsUpdate(CacheDataStore.java:318)
at com.tcclient.cache.CacheDataStore.updateTimestampIfNeeded(CacheDataStore.java:302)
at com.tcclient.cache.CacheDataStore.get(CacheDataStore.java:190)
at com.tcclient.ehcache.TimeExpiryMap.get(TimeExpiryMap.java:120)
at net.sf.ehcache.store.MemoryStore.get(MemoryStore.java:130)
at net.sf.ehcache.Cache.searchInMemoryStore(CacheTC.java:872)
at net.sf.ehcache.Cache.get(CacheTC.java:735)
at org.hibernate.cache.ReadWriteCache.put(ReadWriteCache.java:153)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:156)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
at org.hibernate.loader.Loader.doQuery(Loader.java:729)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.doList(Loader.java:2220)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
at org.hibernate.loader.Loader.list(Loader.java:2099)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1569)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283)
at com.g4g.services.PlayerServiceImpl.getList(PlayerServiceImpl.java:389)

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