src/main/java/org/gitlab4j/api/ProjectApi.java
public Project archiveProject(Integer projectId)
            throws GitLabApiException {
        Response response = post(Response.Status.CREATED, (new GitLabApiForm()), "projects", projectId, "archive");
        return (response.readEntity(Project.class));
    }
/**
     * Archive a project
     *
     * POST /projects/:id/archive
     *
     * @param projectId the ID of the project to archive, required
     * @return the archived GitLab Project
     * @throws GitLabApiException if any exception occurs
     */
Archive a project
POST /projects/:id/archive

@param projectId the ID of the project to archive, required
@return the archived GitLab Project
@throws GitLabApiException if any exception occurs
Archive a project POST / projects / : id / archive @param projectId the ID of the project to archive required @return the archived GitLab Project @throws GitLabApiException if any exception occurs
public Project archiveProject(Integer projectId)
            throws GitLabApiException {
        Response response = post(Response.Status.CREATED, (new GitLabApiForm()), "projects", projectId, "archive");
        return (response.readEntity(Project.class));
    }
public Project archiveProject ( Integer projectId ) throws GitLabApiException { Response response = post ( Response . Status . CREATED , ( new GitLabApiForm ( ) ) , "projects" , projectId , "archive" ) ; return ( response . readEntity ( Project . class ) ) ; }
Archive a project
 POST /projects/:id/archive
Archive a project POST / projects / : id / archive