[Java] How can I instruct client codegen to not use tags?

Description

I am using Java client codegen to generate client code. I don't want it to generate an API class for each tag present in my operations. Is there anyway to combine or instruct codegen to ignore tags?

The only workaround I have managed to come up with is to do the below (in my build.gradle):

def input = new CodegenConfigurator(
    inputSpec: file("${rootDir}/api.yml").absolutePath,
    outputDir: outputDir,
    lang: 'java',
    library: 'resttemplate',
    additionalProperties: [
        apiPackage: "${basePackage}.client".toString(),
        modelPackage: "${basePackage}.client.model".toString(),
        interfaceOnly: 'true',
        sourceFolder: 'swagger/java/main',
        jackson: 'true',
        java8: 'true',
        dateLibrary: 'java8'
    ],
    systemProperties: [
        apis: '',
        apiDocs: 'false',
        modelDocs: 'false',
        apiTests: 'false',
        modelTests: 'false',
        models: ''
    ]
).setVerbose(true).toClientOptInput()

input.swagger.paths.each {key, value ->
    value.operations.each {
        it.tags = ['SingleClient']
    }
}

new DefaultGenerator().opts(input).generate()

It seems wrong to be modifying the tags. Any other alternatives apart from me extending the DefaultGenerator itself?

Swagger-codegen version

2.4.14

Start with the CodegenConfigurator and DefaultGenerator flow shown in build.gradle, then inspect how operation tags become Java API classes in swagger-codegen 2.4.14. Determine whether an existing configuration entry point can suppress or combine tag-based classes; done means a supported option or clearly scoped implementation path verified against the reported setup.