休眠异常：无法实例化C3P0连接池

Question

现在我遇到一个关于c3p0使用hibernate查询时的问题。

的例外是：

Caused by: java.lang.RuntimeException: [c3p0 bug] Only brand new IdentityTokenized's, with their identities just set, should be registered!!! 
    at com.mchange.v2.c3p0.C3P0Registry.register(C3P0Registry.java:103) 
    at com.mchange.v2.c3p0.DriverManagerDataSource.<init>(DriverManagerDataSource.java:74) 
    at com.mchange.v2.c3p0.DataSources.unpooledDataSource(DataSources.java:128) 
    at org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:96) 
    ... 22 more 

我无法找到谷歌的任何有用的信息，没有任何好友知道原因？谢谢！

BTW：我ENV是C3P0 0.9.0和休眠3.3

Answer 1

这是C3P0错误。我建议将C3P0升级到最新版本（目前为0.9.1.2，http://sourceforge.net/projects/c3p0/files/c3p0-bin/）。