解决 Method com/mchange/v2/c3p0/impl/NewProxyPreparedStatement.isClosed()Z is abstract

在配置c3p0数据源过程中出现:
java.lang.AbstractMethodError: Method com/mchange/v2/c3p0/impl/NewProxyPreparedStatement.isClosed()Z is abstract

原因:c3p0.jar版本过低(我用的是 c3p0-0.9.1.2.jar)
解决
c3p0-0.9.1.2.jar 换成 c3p0-0.9.5.2.jar
hibernate-c3p0-4.3.5.Final.jar 换成 hibernate-c3p0-5.0.4.Final.jar
mchange-commons-java-0.2.3.4.jar 换成 mchange-commons-java-0.2.10.jar

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