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;
  
  /**
   * Exception that carries data (a map) as additional payload. Clojure programs that need
   * richer semantics for exceptions should use this in lieu of defining project-specific
   * exception classes.
   */
  public class ExceptionInfo extends RuntimeException implements IExceptionInfo {
  
      private static final long serialVersionUID = -1073473305916521986L;
  
      public final IPersistentMap data;
  
      public ExceptionInfo(String s, IPersistentMap data) {
          this(s, data, null);
      }
  
      public ExceptionInfo(String s, IPersistentMap data, Throwable throwable) {
          // null cause is equivalent to not passing a cause
          super(s, throwable);
          if (data != null) {
              this.data = data;
          }  else {
              throw new IllegalArgumentException("Additional data must be non-nil.");
          }
      }
  
      public IPersistentMap getData() {
          return data;
      }
  
      public String toString() {
          return "clojure.lang.ExceptionInfo: " + getMessage() + " " + data.toString();
      }
  }
  