package com.jpa;

import java.io.Serializable;
import javax.persistence.*;

/**
* Entity implementation class for Entity: jpaexample
*
*/
@Entity

public class jpaexample {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
    private String summary;
    public String getSummary() {
        return summary;
    }
    public void setSummary(String summary) {
        this.summary = summary;
    }
     
     
     
   
}

package com.jpa;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public class persistjpa {
     
    public static void main(String[] args)
    {
         
         
        EntityManagerFactory factory=Persistence.createEntityManagerFactory("JpaExamples");
        EntityManager em = factory.createEntityManager();
        em.getTransaction().begin();
        jpaexample f=new jpaexample();
        f.setSummary("jpa test");
        em.persist(f);
        em.getTransaction().commit();

        em.close();
         
         
    }

}

<?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="JpaExamples" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <class>com.jpa.jpaexample</class>
        <properties>
            <property name="hibernate.connection.username" value="sa"/>
            <property name="hibernate.connection.password" value="google"/>
            <property name="hibernate.connection.url" value="jdbc:sqlserver://localhost:1433;databaseName=rithishdb"/>
            <property name="hibernate.connection.driver_class" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
            <property name="javax.persistence.jdbc.url" value="jdbc:sqlserver://localhost:1433;databaseName=rithishdb"/>
            <property name="javax.persistence.jdbc.user" value="sa"/>
            <property name="javax.persistence.jdbc.password" value="google"/>
            <property name="javax.persistence.jdbc.driver" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
            <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/>
        </properties>
    </persistence-unit>
</persistence>

Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named JpaExamples
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:61)
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
    at com.jpa.persistjpa.main(persistjpa.java:13)