Hibernate query.list()查询发生java.lang.StringIndexOutOfBoundsException: String index out of range: 0错误

使用Hibernate的query.list()查询数据时发生以下错误

java.lang.StringIndexOutOfBoundsException: String index out of range: 0
    at java.lang.String.charAt(String.java:658)
    at org.hibernate.type.descriptor.java.CharacterTypeDescriptor.wrap(CharacterTypeDescriptor.java:80)
    at org.hibernate.type.descriptor.java.CharacterTypeDescriptor.wrap(CharacterTypeDescriptor.java:34)
    at org.hibernate.type.descriptor.sql.VarcharTypeDescriptor$2.doExtract(VarcharTypeDescriptor.java:61)
    at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:64)
    at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:254)
    at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:250)
    at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:230)
    at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:331)
    at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2283)
    at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1527)
    at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1455)
    at org.hibernate.loader.Loader.getRow(Loader.java:1355)
    at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:611)
    at org.hibernate.loader.Loader.doQuery(Loader.java:829)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    at org.hibernate.loader.Loader.doList(Loader.java:2542)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    at org.hibernate.loader.Loader.list(Loader.java:2271)
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:459)
    at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:365)
    at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)
    at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1268)
    at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)

原因是数据库里面有char类型的字段其内容为空格。

百思不得其解，多亏百度上一为兄台遇到同样的错误才明白是什么原因。