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

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;


Declares a Java interface type to be processed for generating a Java proxy that can be connected to the
original API via Vert.x event bus.

Author:Tim Fox
/**
 * Declares a Java interface type to be processed for generating a Java proxy that can be connected to the
 * original API via Vert.x event bus.
 *
 * @author <a href="http://tfox.org">Tim Fox</a>
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface ProxyGen {
}