[Java][Improvement] Add an option to skip required parameters check

[a-en]

Description

In the specification, I have 2 parameters marked as 'required' for the particular api call. In fact, just on of them should be provided - either first one or second. It doesn't seem to be possible to make the appropriate changes to specification now (issue). Is it possible to add the config option, which would allow to skip block related to 'check if all required parameters provided or throw exception'?

Swagger-codegen version

2.2.2

[wing328]

@a-en would the following feature (not yet implemented for Java) help in your case?

#5530