Swagger codegen duplicate field

Question

I try to generate model classes from swagger JSON. File is delivered and I have not so much control over it.

I have defined usage in my pom.xml:

             <groupId>io.swagger</groupId>
                <artifactId>swagger-codegen-maven-plugin</artifactId>
                <version>2.4.26</version>
                <executions>
                    <execution>
                        <id>some-name</id>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                        <configuration>
                            <inputSpec>
                                ${project.basedir}/src/main/resources/swagger/file.swagger.json
                            </inputSpec>
                            <language>spring</language>
                            <configOptions>
                                <interfaceOnly>true</interfaceOnly>
                                <dateLibrary>java8</dateLibrary>
                                <modelPackage>${project.groupId}.nba.swagger.domain</modelPackage>
                                <apiPackage>${project.groupId}.nba.swagger.api</apiPackage>
                                <swaggerDocketConfig>true</swaggerDocketConfig>
                                <sourceFolder>src/main/java</sourceFolder>
                                <library>spring-boot</library>
                                <java8>true</java8>
                                <ensureUniqueParams>true</ensureUniqueParams>
                            </configOptions>
                        </configuration>
                    </execution>

Inside file.swagger.json I have

          "Customer": {
            "type": "object",
            "properties": {
                "id": {
                    "type": "string",
                    "description": "Unique identifier."
                },
                "type": {
                    "type": "string",
                    "description": "asdda"
                },
                "@type": {
                    "type": "string",
                    "description": "The class type of the actual resource (for type extension)."
                }
            }
        }

Swagger codegen generates:

• @JsonProperty("@type") private String type = null;
• @JsonProperty("type") private String type = null;

and it makes code build fail

is there any option to force codegen to name field/methods differently?