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

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