[FIXED] adding datasource to a Jdbctemplate bean throws exception

Issue

I'm trying to learn spring and bean configuration.

I'm going to have several classes that are gonna DB related functions so each one of them is gonna need to have a JdbcTemplate class. because of that I want to create a bean configuration that will inject a singleton JdbcTemplate class to each one of my DB related classes.

I created the following bean configuration.

<bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource">  
    <property name="driverClassName" value="com.mysql.jdbc.Driver" />  
    <property name="url" value="jdbc:mysql://localhost:3306/foo"/>  
    <property name="username" value="root"></property>  
    <property name="password" value="password"></property>  
        <property name="validationQuery" value="SELECT 1" />
    <property name="testOnBorrow" value="true" />
    <property name="testWhileIdle" value="true" />
     <property name="initialSize" value="5" />  
</bean>   

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate" scope="singleton">
 <constructor-arg ref="dataSource"></constructor-arg> 
</bean>

the problem starts when I add the constructor-args parameter to the jdbcTemplate. jdbctemplate needs to receive the datasource as a parameter to it's constructor. but when I add that property and I try to execute my application this is the exception that I'm getting:

java.lang.IncompatibleClassChangeError: class org.springframework.core.LocalVariableTableParameterNameDiscoverer$ParameterNameDiscoveringVisitor has interface org.springframework.asm.ClassVisitor as super class
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:791)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(Unknown Source)
org.apache.catalina.loader.WebappClassLoader.findClass(Unknown Source)
org.apache.catalina.loader.WebappClassLoader.loadClass(Unknown Source)
org.apache.catalina.loader.WebappClassLoader.loadClass(Unknown Source)
org.springframework.core.LocalVariableTableParameterNameDiscoverer.inspectClass(LocalVariableTableParameterNameDiscoverer.java:112)
org.springframework.core.LocalVariableTableParameterNameDiscoverer.getParameterNames(LocalVariableTableParameterNameDiscoverer.java:85)
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:193)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1045)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:949)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)

what am I missing ?

thank you!

Solution

Please try code if you want jdbcTemplate

 <!-- DataSource configuration for Apache Commons DBCP. -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"
          p:driverClassName="${jdbc.driver}" p:url="${jdbc.url}"
          p:username="${jdbc.username}" p:password="${jdbc.password}"/>

 <!--jdcb template for DB tests-->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.simple.SimpleJdbcTemplate">
        <constructor-arg type="javax.sql.DataSource" ref="dataSource"/>
    </bean>

Answered By - Pritesh Shah