OAuth 2 grant types enum for Spring apps

OAuth2GrantTypes.java

public enum OAuth2GrantTypes {

    // See https://docs.spring.io/spring-security/site/docs/current/api/org/springframework/security/oauth2/core/AuthorizationGrantType.html

    AUTHORIZATION_CODE("authorization_code"),
    IMPLICIT("implicit"),
    PASSWORD("password"),
    CLIENT_CREDENTIALS("client_credentials"),
    REFRESH_TOKEN("refresh_token");

    // Currently not supported by Spring Security
    // https://tools.ietf.org/html/draft-ietf-oauth-device-flow-01
    // DEVICE_CODE("device_code")

    private final String name;

    OAuth2GrantTypes(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }
}