JSP :: Doesn't Display Message See Code Spring Mvc

in my ui i will i will select enabled or disabled then it will go in controller , i already debug it and it goes on the right controller based on what i select on ui my problem is when i select disabled it dont display the message but when i select enabled it displays the message, then i check the databases status is change based on what i select but when i change into disabled doesnt display any message.if select enabled will go in controller then change status into true then update the status then will see the message in ui

@RequestMapping(value = "/viewEnabled/{id}", method = RequestMethod.POST)
public ModelAndView viewEnabled(
@PathVariable("id") Integer id) {
ModelAndView mvc = new ModelAndView();
Supplier supplier = supplierService.retrieveSupplier(id);
supplier.setEnabled(true);
supplierService.updateSupplierEnabled(supplier);
mvc.addObject("showEnabled", true);
mvc.addObject("supplier", supplier);

[code]....

The main functionality of enabled /disabled is both working it just dont display the message if i change it into disabled,.