有关hibernate原生sql查询 - Java / Java EE

我的表为：testtable
字段为：id int not,name decimal(10,2);
插入的测试数据为：
1,10.2
SQLQuery query = con.createSQLQuery("select * from testtable");
List products = query.list();
报错如下：
2010-5-20 15:18:17 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet action threw exception
java.lang.ArithmeticException: Rounding necessary
at java.math.BigDecimal.divide(BigDecimal.java:1346)
at java.math.BigDecimal.setScale(BigDecimal.java:2310)
at org.hibernate.type.BigIntegerType.get(BigIntegerType.java:35)
at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:163)
at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:189)
at org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.extract(CustomLoader.java:474)
at org.hibernate.loader.custom.CustomLoader$ResultRowProcessor.buildResultRow(CustomLoader.java:420)
at org.hibernate.loader.custom.CustomLoader.getResultColumnOrRow(CustomLoader.java:317)
at org.hibernate.loader.Loader.getRowfromResultSet(Loader.java:606)
at org.hibernate.loader.Loader.doQuery(Loader.java:701)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.doList(Loader.java:2213)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
at org.hibernate.loader.Loader.list(Loader.java: