关于OPENJPA的问题.

XML code

<?xml version="1.0"?><persistence xmlns="http://java.sun.com/xml/ns/persistence"      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0">      <persistence-unit name="openjpa">        <provider>org.apache.openjpa.persistence.PersistenceProviderImpl        </provider>        <class>test.School</class>        <class>test.Student</class>        <properties>            <property name="openjpa.ConnectionURL"                 value="jdbc:mysql://localhost:3306/test" />            <property name="openjpa.ConnectionDriverName" value="com.mysql.jdbc.Driver" />            <property name="openjpa.ConnectionUserName" value="root" />            <property name="openjpa.ConnectionPassword" value="root" />            <property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />            <property name="openjpa.RuntimeUnenhancedClasses" value="supported" />            <property name="openjpa.jdbc.SynchronizeMappings"                 value="buildSchema(ForeignKeys=true)"/>        </properties>    </persistence-unit></persistence>

再persistence标签里, 有一个属性version="1.0", 不是说jpa已经升级2.0了吗?
还有openjpa的enhancer是什么, 怎么用?

[解决办法]
jpa是已经到2.0了。看你用的是什么，