title: Class 'com.mchange.v2.c3p0.ComboPooledDataSource' not found
body: <p>Where do I suppose to indicate class dependency when I got error messages:</p>
  
  <ul>
  <li><em>Class 'com.mchange.v2.c3p0.ComboPooledDataSource' not found</em></li>
  <li><em>Class 'org.springframework.jdbc.datasource.DataSourceTransactionManager' not found</em></li>
  </ul>
  
  <p><strong>jdbc-context.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;beans xmlns="http://www.springframework.org/schema/beans"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:tx="http://www.springframework.org/schema/tx"
      xmlns:context="http://www.springframework.org/schema/context"
      xmlns:p="http://www.springframework.org/schema/p"
      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"&gt;
  
      &lt;context:property-placeholder location="/WEB-INF/spring.properties" /&gt;
  
      &lt;tx:annotation-driven transaction-manager="transactionManager" /&gt;
  
      &lt;bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
          destroy-method="close"
          p:driverClass="${jdbc.driverClassName}"
          p:jdbcUrl="${jdbc.url}"
          p:user="${jdbc.username}"
          p:password="${jdbc.password}"
          p:acquireIncrement="5"
          p:idleConnectionTestPeriod="60"
          p:maxPoolSize="100"
          p:maxStatements="50"
          p:minPoolSize="10" /&gt;
  
      &lt;bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource" /&gt;
  &lt;/beans&gt;
  </code></pre>