- return ResponseEntity.badRequest().body("State transition from " + rappInstance.getState().name() + " to "
- + RappInstanceState.UNDEPLOYED.name()
- + " is not permitted.");
+ return ResponseEntity.badRequest()
+ .body(String.format(STATE_TRANSITION_NOT_PERMITTED, rappInstance.getState().name(),
+ RappInstanceState.UNDEPLOYED.name()));