Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
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Description

If you have a path with a dollar sign when using the kotlin-spring generator it does not get escaped correctly and thinks it is a Kotlin string template causing compile failures. I must use a dollar sign as it is something I am being told to use and do not have an option to change it.

openapi-generator version

6.6.0

OpenAPI declaration file content or url

openapi: 3.0.2
info:
  title: Customer API
  version: 1.0.0
paths:
  /customer/$search:
    post:
      summary:  Search for a customer 
      requestBody:
        description: Find a customer
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Customer'
        required: true
      responses:
        '200':
          description: Successful operation
 
components:
  schemas:
    Customer:
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 100000
        ssn: 
          type : string
          maxLength : 11
          pattern : '^\d{3}-\d{2}-\d{4}$'
          description : SSN of the customer
          example : 999-99-9999

Generation Details

@RequestMapping("\${api.base-path:}")
interface CustomerApi {

    @Operation(
        summary = "Search for a customer",
        operationId = "customerSearchPost",
        description = """""",
        responses = [
            ApiResponse(responseCode = "200", description = "Successful operation")
        ]
    )
    @RequestMapping(
            method = [RequestMethod.POST],
            value = ["/customer/$search"],
            consumes = ["application/json"]
    )
    fun customerSearchPost(@Parameter(description = "Find a customer", required = true) @Valid @RequestBody customer: Customer): ResponseEntity<Unit>

Steps to reproduce

1. Run mvn clean compile
2. The code cannot compile and an error is thrown stating Only 'const val' can be used in constant expressions
   • This is because of line value = ["/customer/$search"], inside of the @RequestMapping the $search is not escaped and $ holds a special meaning in Kotlin

Related issues/PRs

Not exactly the same but similar

• [BUG][KOTLIN] Kotlin client unescaped string template #4228

Suggest a fix

Unsure where this is is happening to provide a suggestion to fix.