JPA SQL Server No Dialect mapping for JDBC type: -9

First you have to define what is your dialect class name that you want to use:
in hibernate.cfg.xml add your own class address

<property name="hibernate.dialect">com.nhl.dao.SQlServerDBDialect</property>

then create new class same below

package com.nhl.dao;
import java.sql.Types;
import org.hibernate.dialect.SQLServerDialect;
import org.hibernate.type.StandardBasicTypes;

public class SQlServerDBDialect extends SQLServerDialect {

    public SQlServerDBDialect() {
        super();
        registerHibernateType(Types.NCHAR, StandardBasicTypes.CHARACTER.getName()); 
        registerHibernateType(Types.NCHAR, 1, StandardBasicTypes.CHARACTER.getName());
        registerHibernateType(Types.NCHAR, 255, StandardBasicTypes.STRING.getName());
        registerHibernateType(Types.NVARCHAR, StandardBasicTypes.STRING.getName());
        registerHibernateType(Types.LONGNVARCHAR, StandardBasicTypes.TEXT.getName());
        registerHibernateType(Types.NCLOB, StandardBasicTypes.CLOB.getName());

    }
}