[Hibernate] Erro com o C3P0

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#1

O StackTrace é o seguinte:

org.hibernate.exception.GenericJDBCException: Cannot open connection
	at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:82)
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:70)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
	at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:301)
	at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:110)
	at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:137)
	at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:49)
	at org.hibernate.transaction.JDBCTransactionFactory.beginTransaction(JDBCTransactionFactory.java:24)
	at org.hibernate.jdbc.JDBCContext.beginTransaction(JDBCContext.java:271)
	at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1079)
	at br.com.integrativa.persistence.HibernateUtility.beginTransaction(HibernateUtility.java:53)
	at br.com.integrativa.persistence.dao.HibernateDao.make(HibernateDao.java:130)
	at br.com.integrativa.persistence.dao.HibernateDao.save(HibernateDao.java:157)
	at org.apache.jsp.teste_jsp._jspService(teste_jsp.java:59)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:210)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2422)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:199)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:700)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:584)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
	at java.lang.Thread.run(Thread.java:534)

Caused by: java.sql.SQLException: An SQLException was provoked by the following failure: com.mchange.v2.resourcepool.ResourcePoolException: A ResourcePool could not acquire a resource from its primary factory or source.
	at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:68)
	at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:57)
	at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:213)
	at com.mchange.v2.c3p0.PoolBackedDataSource.getConnection(PoolBackedDataSource.java:64)
	at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:35)
	at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:298)
	... 45 more

Caused by: com.mchange.v2.resourcepool.ResourcePoolException: A ResourcePool could not acquire a resource from its primary factory or source.
	at com.mchange.v2.resourcepool.BasicResourcePool.awaitAcquire(BasicResourcePool.java:870)
	at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:201)
	at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:209)
	... 48 more

hibernate.cfg.xml:

<?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">

<hibernate-configuration>
    <session-factory>
        <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
        <property name="hibernate.connection.driver_class">net.sourceforge.jtds.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:jtds:sqlserver://url:1433/base?autoReconnect=true</property>
        <property name="hibernate.connection.username">usuario</property>
        <property name="hibernate.connection.password">senha</property>
        
        <mapping resource="br/com/persistence/User.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

Configurações do servidor:

java.version: 1.4.2_04
java.class.version: 48.0
os.name: Windows 2000
os.name: x86
os.version: 5.0
server: Apache Tomcat/4.1.30

Pelo que mostra o “Caused by” do StackTrace, o erro é com o C3P0… Já verifiquei o hibernate.cfg.xml, troquei o JAR do C3P0 por outras versões do mesmo, e nada!

Grato desde já!

#2