Spring @DeleteMapping (Post, Get, etc.) path variable support

Hello,

When I use annotions from package org.springframework.web.bind.annotation (like @GetMapping, @DeleteMapping, etc.), I have this message if I inspect code : 

Cannot resolve path variable "color_id" in request mapping.

This is my code for example :

@GetMapping(PATH + "/cars/{color_id}"  )
public Set<CarDto> getCarsByColor(
        @ApiParam(value = PRODUCT_ID, required = true) @PathVariable("color_id") Integer modelId){

Is this a bug ? The problem appears only if I have a concatenation.

Thank you for your help !

Regards

Yann