JPA cascade - deletion is not working when id is different in join table - postgresql

Question

I am using spring JPA to insert and delete the records in these tables. I can able to insert the record, but deletion is not happening due to different id's in emp_workstation table. If both employee_id and workstation_id were same then delete is working fine, but if both the id's were not same then delete not happening in employee table and emp_workstation table (cascade has set to 'ALL'). Does anybody face this problem before or know how to solve this issue?
Employee.java
#Setter
#Getter
#Builder(toBuilder = true)
#AllArgsConstructor(access = AccessLevel.PUBLIC)
#NoArgsConstructor(access = AccessLevel.PUBLIC)
#Entity
#Table(name = "employee")
public class Employee {
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sq_employee_id")
#SequenceGenerator(name = "sq_employee_id", sequenceName = "sq_employee_id", allocationSize = 1)
private Long id;
#Column(name = "employee_name", length = 50)
private String name;
#OneToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
#JoinTable(name = "emp_workstation", joinColumns = {
#JoinColumn(name = "employee_id") }, inverseJoinColumns = { #JoinColumn(name = "workstation_id") })
private Workstation workstation;
}
Workstation.java
#Setter
#Getter
#Builder(toBuilder = true)
#AllArgsConstructor(access = AccessLevel.PUBLIC)
#NoArgsConstructor(access = AccessLevel.PUBLIC)
#Entity
#Table(name = "workstation")
public class Workstation {
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sq_workstation_id")
#SequenceGenerator(name = "sq_workstation_id", sequenceName = "sq_workstation_id", allocationSize = 1)
private Long id;
#Column(name = "workstation_name", nullable = false, length = 100)
private String name;
#Column(name = "workstation_area", nullable = false, length = 100)
private String name;
#OneToOne(mappedBy = "workStation")
private Employee employee;
}
Example: In EMP_WORKSTATION table, if EMPLOYEE_ID and WORKSTATION_ID were same then deletion is working fine. but if both id were different then deletion is not working.
Thanks