Hibernate Composite key problem with partial joining with other entity - spring-boot

Question

Hibernate Composite key problem with partial joining with other entity.
Below code was working for javax.persistence_1.0.0.0_2.0 (Toplink), however same is not working for under Spring Boot (Spring Boot JPA starter - jakarta.persistence-api-2.2.3)
#Table(name = "EMPLOYEE")
#IdClass(EmployeePK.class)
public class Employee implements Serializable {
#Id
#Column(name = "EMP_NUMBER", nullable = false, length = 4000, insertable = false, updatable = false)
private String empNo;
#Id
#Column(name = "RGSN_ID", nullable = false, insertable = false, updatable = false)
private Long registId;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumns( { #JoinColumn(name = "PRJ_ID", referencedColumnName = "PRJ_ID"),
#JoinColumn(name = "EMP_NUMBER",
referencedColumnName = "EMP_NUMBER") })
private Projects projects;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "RGSN_ID")
private Organization organization;
//other fields
//created_by, creation_date, last_update_date, last_updated_by, status
}
Composite Key of Employee Table
public class EmployeePK
implements Serializable {
private String empNo;
private Long registId;
// getter setter equals hashcode
}
Project Table
#Table(name = "PROJECTS")
#IdClass(ProjectsPK.class)
public class Projects implements Serializable {
#Id
#Column(name = "PRJ_ID", nullable = false, insertable = false, updatable = false)
private Long prjId;
#Id
#Column(name = "EMP_NUMBER", nullable = false, length = 4000)
private String empNo;
#OneToMany(mappedBy = "projects")
private List<Employee> empList;
//other fields
//created_by, creation_date, last_update_date, last_updated_by, status
}
Composite keys for Project table
public class ProjectsPK
implements Serializable {
private Long prjId;
private String empNo;
// getter setter equals hashcode
}
Console Exception:
insert
into
EMPLOYEE
(created_by, creation_date, last_update_date, last_updated_by, status, prj_id, emp_number, rgsn_id)
values
(?, ?, ?, ?, ?, ?, ?, ?)
o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [VARCHAR] - [abc#c.com]
o.h.type.descriptor.sql.BasicBinder : binding parameter [2] as [TIMESTAMP] - [2022-03-16 18:52:37.587915]
o.h.type.descriptor.sql.BasicBinder : binding parameter [3] as [TIMESTAMP] - [2022-03-16 18:52:37.587915]
o.h.type.descriptor.sql.BasicBinder : binding parameter [4] as [VARCHAR] - [abc#c.com]
o.h.type.descriptor.sql.BasicBinder : binding parameter [5] as [VARCHAR] - [A]
o.h.type.descriptor.sql.BasicBinder : binding parameter [6] as [BIGINT] - [435]
o.h.type.descriptor.sql.BasicBinder : binding parameter [7] as [VARCHAR] - [123]
o.h.type.descriptor.sql.BasicBinder : binding parameter [8] as [VARCHAR] - [123]
o.h.type.descriptor.sql.BasicBinder : binding parameter [9] as [BIGINT] - [null]
o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 0, SQLState: S1093
o.h.engine.jdbc.spi.SqlExceptionHelper : The index 9 is out of range.
com.microsoft.sqlserver.jdbc.SQLServerException: The index 9 is out of range.
In above exception it shows two entries for emp_number 123 and because of that index is coming 9.
Not getting what could be the problem also added insertable = false, updatable = false at those entries.