Java EE (Java Enterprise Edition) General Discussion

I am trying to update some data in my table. Maybe i am doing it the wrong way.

So when i try to update anything else, it will permit me but when i try to update the Foreign key of an One To One relation it will drop me this

15:21:53,367 INFO [STDOUT] org.hibernate.HibernateException: identifier of an instance of project.entities.CloneNumber was altered from 2a to 2aa

i have my CloneNumber is One to One with Ligation .

public void updateLigation(int id, String plasmid, String ins1, String ins2, String oldClone, String cloNum, String cons){
         try{
            LigationExperiment lig = manager.find(LigationExperiment.class, id);
            lig.setPlasmid(plasmid);
            lig.setInsert1(ins1);
            lig.setInsert2(ins2);
            lig.setConstructedPlasmid(cons);
            lig.setCloneNumber(updateCloneNum(oldClone,cloNum));

            System.out.println("Will not come here.");
        } catch (Exception e){
            System.out.println(e.getMessage());

        }
     }

.

public CloneNumber updateCloneNum(String oldClone,String cloneNo){
        CloneNumber n = manager.find(CloneNumber.class, oldClone);
        n.setCloneNo(cloneNo);
        System.out.println(n.getBatch() + n.getCloneNo());
        manager.flush();
        n = manager.find(CloneNumber.class, cloneNo);
        return n;

    }

Let me note than when i update anything else and not the cloneNumber it will permit me, but when i try to update that it will not allow me.

/************** Ligation **************/
     // Setting the relationship for OneToOne for CloneNumber.java
    private CloneNumber cloNum;
    
    @OneToOne
    public CloneNumber getCloneNumber() { return cloNum; }
    public void setCloneNumber(CloneNumber cloNum) { this.cloNum = cloNum; } 

How can i update the primary key of a foreign key and then allocate it to my table succesfully ?