title: Is there any way to handle exception if we pass empty spaces in path parameter of integer type in OpenApi(Swagger)?
body: <p>I am trying implement below endpoint URL in swagger:</p>
  <p><code>users/{userId}/accounts/{accountId}</code></p>
  <p>I am using Spring Boot and OpenApi 3.0.1. The codegen generates the delegate interfaces from where we need to start service implementation.
  I am facing issue when I am passing white spaces as accountId. Its throwing 500 Internal server error.</p>
  <p>In console I can see error at org.springframework.web.reactive.result.method.annotation.PathVariableMethodArgumentResolver.handleMissingValue(PathVariableMethodArgumentResolver.java:95)</p>
  <p>Is there any way in Open Api so that we can handle this case?</p>
  <p>Thanks</p>
  <p>Please find yaml endpoint below:</p>
  <pre><code>     delete:
         tags:
           - UserAccounts
         summary: Delete accounts for users
         description: Delete accounts for users
         operationId: DeleteUserAccounts
         parameters:
           - $ref: '#/components/parameters/uid'
           - $ref: '#/components/parameters/token'
           - $ref: '#/components/parameters/accountId'
           - $ref: '#/components/parameters/userId'
    responses:
           200:
  </code></pre>
  <p>AccountId parameter is defined as:</p>
  <pre><code>    accountId:
        name: accountId
        in: path
        description: &quot;account Id&quot;
        required: true
        schema:
          type: integer
          format: int64
          example: 34562712
  </code></pre>