在“Generating Artifacts”期间发生了内部错误。哪位高手能帮我看看！

Question

这是我在用Myeclipse创建Hbm.xml和POJO的时候，老是发生这样的错误 
!ENTRY org.eclipse.core.jobs 4 2 2007-08-07 23:32:39.812
!MESSAGE 在“Generating Artifacts”期间发生了内部错误。
!STACK 0
org.hibernate.HibernateException: Proxool Provider unable to load JAXP configurator file: Proxool.xml
at org.hibernate.connection.ProxoolConnectionProvider.configure(ProxoolConnectionProvider.java:125)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56)
at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:366)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1877)
at com.genuitec.eclipse.hibernate.wizards.MEJDBCMetaDataConfiguration.readFromJDBC(MEJDBCMetaDataConfiguration.java:73)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$6.execute(GenerateArtifactsJob.java:529)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:35)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:72)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:524)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:296)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
Caused by: org.logicalcobwebs.proxool.ProxoolException: Parsing failed.
at org.logicalcobwebs.proxool.configuration.JAXPConfigurator.configure(JAXPConfigurator.java:91)
at org.logicalcobwebs.proxool.configuration.JAXPConfigurator.configure(JAXPConfigurator.java:107)
at org.hibernate.connection.ProxoolConnectionProvider.configure(ProxoolConnectionProvider.java:120)
... 12 more
Caused by: org.logicalcobwebs.proxool.ProxoolException: Couldn't load class com.mysql.jdbc.Driver
at org.logicalcobwebs.proxool.configuration.XMLConfigurator.endElement(XMLConfigurator.java:198)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
at org.logicalcobwebs.proxool.configuration.JAXPConfigurator.configure(JAXPConfigurator.java:87)
... 14 more
Proxool.xml的配置是 :<?xml version="1.0" encoding="UTF-8"?><something-else-entirely>
<proxool>
<alias>proxool</alias>
<!--proxool只能管理由自己产生的连接-->
<driver-url>jdbc:mysql://localhost:3306/test</driver-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<driver-properties>
<property name="user" value="root"/>
<property name="password" value="pjb198344" />
</driver-properties>
<!-- proxool自动侦察各个连接状态的时间间隔(毫秒),侦察到空闲的连接就马上回收,超时的销毁-->
<house-keeping-sleep-time>90000</house-keeping-sleep-time>
<!-- 最少保持的空闲连接数-->
<prototype-count>5</prototype-count>
<!-- 允许最大连接数,超过了这个连接，再有请求时，就排在队列中等候，最大的等待请求数由maximum-new-connections决定-->
<maximum-connection-count>10</maximum-connection-count>
<!-- 最小连接数-->
<minimum-connection-count>1</minimum-connection-count>
</proxool>
</something-else-entirely>
Hibernate.cfg.xml的配置是 :<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration><session-factory>
<property name="hibernate.proxool.pool_alias">proxool</property>
<property name="hibernate.proxool.xml">Proxool.xml</property>
<property name="connection.provider_class">org.hibernate.connection.ProxoolConnectionProvider</property>
<property name="myeclipse.connection.profile"></property>
<property name="connection.url"></property>
<property name="connection.username"></property>
<property name="connection.password"></property>
<property name="connection.driver_class"></property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
</session-factory></hibernate-configuration>在网上找了几个星期了，都没找到答案！好郁闷！