code: /**
   *   Copyright (c) Rich Hickey. All rights reserved.
   *   The use and distribution terms for this software are covered by the
   *   Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
   *   which can be found in the file epl-v10.html at the root of this distribution.
   *   By using this software in any fashion, you are agreeing to be bound by
   * 	 the terms of this license.
   *   You must not remove this notice, or any other, from this software.
   **/
  
  package clojure.lang;
  
  /**
   * @since 1.3
   */
  public class ArityException extends IllegalArgumentException {
  
  	private static final long serialVersionUID = 2265783180488869950L;
  
  	final public int actual;
  
  	final public String name;
  
  	public ArityException(int actual, String name) {
  		this(actual, name, null);
  	}
  
  	public ArityException(int actual, String name, Throwable cause) {
  		super("Wrong number of args (" + (actual <= 20 ? actual : "> 20") + ") passed to: " + Compiler.demunge(name), cause);
  		this.actual = actual;
  		this.name = name;
  	}
  
  }
  