http://nexus.sonatype.org/oss-repository-hosting.html/vertx-parent/vertx-ext/vertx-ext-parent/vertx-health-check: Sonatype helps open source projects to set up Maven repositories on https://oss.sonatype.org/ (Eclipse) 
package io.vertx.ext.healthchecks.impl;

import io.vertx.core.Handler;
import io.vertx.core.json.JsonObject;


Author:Clement Escoffier
/**
 * @author <a href="http://escoffier.me">Clement Escoffier</a>
 */
public interface Procedure {

  void check(Handler<JsonObject> resultHandler);

}