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

import io.vertx.codetrans.CodeBuilder;


Author:Julien Viet
/**
 * @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
 */
public class SystemModel extends ClassModel {

  public SystemModel(CodeBuilder builder) {
    super(builder);
  }

  @Override
  public ExpressionModel onField(String identifier) {
    if (identifier.equals("out")) {
      return new ConsoleModel(builder, true);
    }
    if (identifier.equals("err")) {
      return new ConsoleModel(builder, false);
    }
    throw new UnsupportedOperationException("Cannot select " + identifier + " on java.lang.System");
  }
}