Set the CriteriaSpecification.LEFT_JOINCriteriaSpecification.LEFT_JOIN to alias function
.createAlias("branch", "br" CriteriaSpecification.LEFT_JOIN) .createAlias("caseStage", "stage", CriteriaSpecification.LEFT_JOIN) .createAlias("branch", "br" , CriteriaSpecification.LEFT_JOIN) .createAlias("caseStage", "stage", CriteriaSpecification.LEFT_JOIN)