/******************************************************************************* * Copyright (c) 2001, 2010 Mathew A. Nelson and Robocode contributors * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://robocode.sourceforge.net/license/epl-v10.html * * Contributors: * Flemming N. Larsen * - Initial implementation *******************************************************************************/ package tested.robots; import java.io.ByteArrayOutputStream; import java.io.PrintStream; import java.lang.reflect.*; /** * @author Flemming N. Larsen (original) */ public class ConstructorReflectionAttack extends robocode.AdvancedRobot { static ByteArrayOutputStream baos = new ByteArrayOutputStream(); static { try { Field field = System.class.getField("out"); field.setAccessible(true); Object obj = field.get(null); Method method = obj.getClass().getMethod("print", new Class[] { String.class }); method.setAccessible(true); method.invoke(obj, new Object[] { "Hello World" }); } catch (Exception e) { // The stack trace from the exception is redirected to a temporary buffer, // which is read and written out to the robot's output in the run() method. PrintStream ps = new PrintStream(baos); e.printStackTrace(ps); ps.flush(); } } public void run() { // Write out the buffered output out.append(baos.toString()); } }