Aborted connectiom mysql Hibernate

Persistence. Xml

<?xml version="1.0" encoding="UTF-8"?>

<persistence version="2.1"

             xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">

    <persistence-unit name="pu" transaction-type="RESOURCE_LOCAL">

        <provider>org.hibernate.ejb.HibernatePersistence</provider>

        <properties>

            <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />

            <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/JPADemo" />

            <property name="javax.persistence.jdbc.user" value="javalearning" />

            <property name="javax.persistence.jdbc.password" value="learn" />

            <!--Hibernate Configuration -->

            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />

            <property name="hibernate.archive.autodetection" value="class" />

            <property name="hibernate.flushMode" value="FLUSH_AUTO" />

            <property name="hibernate.hbm2ddl.auto" value="create" />

            <property name="hibernate.show_sql" value="true" />

            <!-- POOL -->

            <property name="hibernate.c3p0.min_size" value="5"/>

            <property name="hibernate.c3p0.max_size" value="20"/>

            <property name="hibernate.c3p0.timeout" value="300"/>

            <property name="hibernate.c3p0.max_statements" value="50"/>

            <property name="hibernate.c3p0.idle_test_period" value="3000"/>

        </properties>

    </persistence-unit>

</persistence>