Error with Spring5+hibernate+jpa+hikaricp xml configuration - spring

Question

Please help. The below is my XML configuration file. My application runs properly. But it says no database selected when call database.
The exception looks like below:
2018-03-24 13:44:17 DEBUG SqlExceptionHelper:139 - could not extract ResultSet [n/a]
java.sql.SQLException: No database selected
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4120)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4052)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2503)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2664)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2794)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2322)
at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
<?xml version="1.0" encoding="utf-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="app.sphi" />
<mvc:resources mapping="/res/**" location="/WEB-INF/res/" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
<property name="poolName" value="springHikariCP" />
<property name="connectionTestQuery" value="SELECT 1" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/testdb?useUnicode=true" />
<property name="dataSourceClassName" value="com.mysql.jdbc.jdbc2.optional.MysqlDataSource" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<!-- Create default configuration for Hibernate -->
<bean id="hibernateJpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
</bean>
<!-- Configure the entity manager factory bean -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter" />
<!-- Set JPA properties -->
<property name="jpaProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="hibernate.enable_lazy_load_no_trans">true</prop>
</props>
</property>
<!-- Set base package of your entities -->
<property name="packagesToScan" value="app.sphi.model" />
<!-- Set share cache mode -->
<property name="sharedCacheMode" value="ENABLE_SELECTIVE" />
<!-- Set validation mode -->
<property name="validationMode" value="NONE" />
</bean>
<!-- Configure the transaction manager bean -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<!-- Enable annotation driven transaction management -->
<tx:annotation-driven transaction-manager="transactionManager" />
<!-- Configure Spring Data JPA and set the base package of the repository interfaces -->
<jpa:repositories base-package="app.sphi.repo"
transaction-manager-ref="transactionManager"
entity-manager-factory-ref="entityManagerFactory" />
</beans>
I will be pleased for any suggestion.

Answer 1

Do not configure both jdbcUrl and dataSourceClassName, pick one style or the other. In this case, I suggest you stick with jdbcUrl.