[JAVA] Not all JSON.mustache template patched in swagger-codegen-cli

[UKreher]

Description

The changes of issue #4824 have been applied to the template file/Java/JSON.mustache within swagger-codegen-cli-3.0.8. However, the Jar-file contains several files of the same template and not all are patched. For instance, in my case /handlebars/Java/libraries/okhttp-gson/JSON.mustache will be chosen. And this does not have the ByteArrayAdapter.

Swagger-codegen version

swagger-codegen-cli-3.0.8

Swagger declaration file content or url

Command line used for generation

Steps to reproduce

Related issues/PRs

#4824

Suggest a fix/enhancement

Apply the changes of #4824 to every template where it makes sense.