Swagger property sorter

Main.java

public class Main {
    public static void main(String[] args) {
        Swagger swagger = new SwaggerParser().read("swagger.json");
        sortDefinitionProperties(swagger);
        try {
            FileUtils.writeStringToFile(new File("swagger-output.json"), Json.pretty(swagger), Charset.defaultCharset());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void sortDefinitionProperties(Swagger swagger) {
        for (Model model : swagger.getDefinitions().values()) {
            TreeMap<String, Property> sorted = new TreeMap<String, Property>(model.getProperties());
            model.getProperties().clear();
            model.setProperties(sorted);
        }
    }
}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.mycompany.app</groupId>
    <artifactId>my-app</artifactId>
    <version>1</version>
    <dependencies>
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-parser</artifactId>
            <version>1.0.19</version>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.5</version>
        </dependency>
    </dependencies>
</project>