linux下的tomcat自动退出的问题

No operations allowed after connection closed

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${c3p0.driverClass}" />
        <property name="jdbcUrl" value="${c3p0.url}" />
        <property name="user" value="${c3p0.user}" />
        <property name="password" value="${c3p0.password}" />

        <property name="minPoolSize" value="5"/>
        <property name="maxPoolSize" value="30"/>
        <property name="initialPoolSize" value="15"/>
        <property name="maxStatements" value="0"/>
        <property name="maxIdleTime" value="60"/>
        <property name="acquireIncrement" value="5"/>
        <property name="idleConnectionTestPeriod" value="59"/>
        <property name="acquireRetryAttempts" value="30"/>
        <property name="automaticTestTable" value="c3p0"/>
        <property name="numHelperThreads" value="5"/>
    </bean>

cygwin=false   //在这行下面添加
JAVA_OPTS="-server -Xms128m -Xmx512m -XX:PermSize=128M -XX:MaxPermSize=512m"