I do the mapping for CDR using native generator.

However, it has throw an Exception when session.save(cdr).

Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1"

java.lang.AbstractMethodError: com.mysql.jdbc.jdbc2.Connection.prepareStatement

(Ljava/lang/String;I)Ljava/sql/PreparedStatement;
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.mchange.v2.c3p0.stmt.GooGooStatementCache$2.run(GooGooStatementCache.java:325)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run

(ThreadPoolAsynchronousRunner.java:148)

mysql> desc cdr
-> ;
+-------------+-------------+------+-----+---------------------+----------------
+
| Field | Type | Null | Key | Default | Extra
|
+-------------+-------------+------+-----+---------------------+----------------
+
| CdrID | int(11) | | PRI | NULL | auto_increment
|
| AccessTime | datetime | | | 0000-00-00 00:00:00 |
+-------------+-------------+------+-----+---------------------+----------------

public class CDR{
private long cdrID;
private java.util.Date accessTime;

public CDR(){}

public long getCdrID() {
return cdrID;
}

public void setCdrID(long cdrID) {
this.cdrID = cdrID;
}

public java.util.Date getAccessTime() {
return accessTime;
}

public void setAccessTime(java.util.Date accessTime) {
this.accessTime = accessTime;
}
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN"

"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class name="com.mobileserver.CDR" table="cdr">
<id name="cdrID">
<generator class="native"/>
</id>
<property name="accessTime" column="accesstime" type="timestamp" length="19" not-null="true"/>
</class>
</hibernate-mapping>

Hibernate version: 2.1.6
Mysql server version: 4.0.22-nt
JDBC Connection: mysql-connector-java-2.0.14-bin.jar
Windows Platform: WinXP

who can help me solution the problem? Thank you! ^^