Exception in thread "AWT-EventQueue-0" org.springframework.http.converter.HttpMessageNotReadableException: Could not read document: Already had POJO for id (java.lang.Long) [[ObjectId: key=2, type=com.fasterxml.jackson.databind.deser.impl.PropertyBasedObjectIdGenerator, scope=java.lang.Object]] (through reference chain: ph.com.tst.kickin_it.commons.model.hr.EmployeeRecruitmentBO["employee"]->ph.com.tst.kickin_it.commons.model.hr.EmployeeBO["recruitments"]->java.util.ArrayList[0]->ph.com.tst.kickin_it.commons.model.hr.EmployeeRecruitmentBO["company"]->ph.com.tst.kickin_it.commons.model.settings.CompanyBO["id"]); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Already had POJO for id (java.lang.Long) [[ObjectId: key=2, type=com.fasterxml.jackson.databind.deser.impl.PropertyBasedObjectIdGenerator, scope=java.lang.Object]] (through reference chain: ph.com.tst.kickin_it.commons.model.hr.EmployeeRecruitmentBO["employee"]->ph.com.tst.kickin_it.commons.model.hr.EmployeeBO["recruitments"]->java.util.ArrayList[0]->ph.com.tst.kickin_it.commons.model.hr.EmployeeRecruitmentBO["company"]->ph.com.tst.kickin_it.commons.model.settings.CompanyBO["id"])