This component contains following artifacts for 3.1.0 version. article:

• API-M 3.1.0 - https://apim.docs.wso2.com/en/latest/learn/api-security/oauth2/access-token-types/jwt-tokens/#transform-jwt-claims

You need to just build the project using Maven:

     mvn clean install

Copy the generated JAR file from the target folder and place it in <API-M_HOME>/repository/components/dropins.