[BUG] Apex named credential property does not work

Created by: loganm

Description

When generating an apex client, the namedCredential property does not override the name of the named credential. In code, it looks like this property is ignored, and the

openapi-generator version

4.0.0

Command line used for generation

openapi-generator generate -i https://directplus.documentation.dnb.com/assets/APIs/searchCriteria.json -g apex --additional-properties namedCredential=DnB_Direct

Suggest a fix

It looks like the name for the file is pulled from openAPI.getInfo().getTitle() rather than reading from the namedCredential property. Should be an easy fix to read the property instead.

https://github.com/OpenAPITools/openapi-generator/blob/046db19a8590f3557ae1e04be75792bbeb39cb69/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ApexClientCodegen.java#L164-L171