package com.Neo4jRestAPI;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="Person")
public class Person {
   
   @Id
   @GeneratedValue(strategy = GenerationType.AUTO)
   @Column(name = "id")
   private Integer id;
   
   @Column(name="gender")
   private String gender;
   
   @Column(name="dob")
   private String dob;
   
   @Column(name="firstname")
   private String firstname;
   
   @Column(name="middlename")
   private String middlename;
   
   @Column(name="lastname")
   private String lastname;

   private String relationship_type;
   
   private String relationship;
   
   public Person() {}
   
   // getters and setters
   public Integer getId() {
      return id;
   }

   public void setId(Integer id) {
      this.id = id;
   }

   public String getGender() {
      return gender;
   }

   public String setGender(String gender) {
      return this.gender = gender;
   }

   public String getDob() {
      return dob;
   }

   public String setDob(String dob) {
      return this.dob = dob;
   }

   public String getFirstname() {
      return firstname;
   }

   public String setFirstname(String firstname) {
      return this.firstname = firstname;
   }

   public String getMiddlename() {
      return middlename;
   }

   public String setMiddlename(String middlename) {
      return this.middlename = middlename;
   }

   public String getLastname() {
      return lastname;
   }

   public String setLastname(String lastname) {
      return this.lastname = lastname;
   }
   
   public String getRelationship_type() {
      return relationship_type;
   }

   public String setRelationship_type(String relationship_type) {
      return this.relationship_type = relationship_type;
   }
   
   public String getRelationship() {
      return relationship;
   }

   public String setRelationship(String relationship) {
      return this.relationship = relationship;
   }
}

import org.hibernate.HibernateException;

import com.google.gson.Gson;

public class PersonDAO {

    public void addPerson(Person person){

        try {
            EntityManagerFactory emf = Persistence.createEntityManagerFactory("persistence");
            EntityManager em = emf.createEntityManager();
            EntityTransaction tx = em.getTransaction();
            tx.begin();

            em.persist(person);
            em.flush();     
            tx.commit();
            em.clear();
            em.close();
            emf.close();
            }
        catch ( Exception e ) {
            e.printStackTrace();
        }
    }
}

@POST
@Path("/person")
@Consumes("application/json")
public Response addPerson(Person person){

     PersonDAO dao = new PersonDAO();

     dao.addPerson(person);

     return Response.ok().build();
}

"Neo.ClientError.Transaction.TransactionNotFound","message":"Unrecognized transaction id. Transaction may have timed out and been rolled back

@GeneratedValue