OptionParseException.java from DrJava at Krugle

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package edu.rice.cs.drjava.config;

/** Exception indicating that an OptionParser could not parse the specified value for a given configurable option.
 *  @version $Id: OptionParseException.java 4255 2007-08-28 19:17:37Z mgricken $
 */
public class OptionParseException extends IllegalArgumentException {
  
  public String key;
  public String value;
  public String message;
  
  /** Exception indicating that an OptionParser could not parse the specified value for a given configurable option.
   *  @param key The name of the configuration option
   *  @param value The invalid value which caused the parse error
   *  @param message Some helpful message explaining the parse error
   */
  public OptionParseException(String key, String value, String message) {
    this.key = key;
    this.value = value;
    this.message = message;
  }
  
  /** Format a nice message for the user. */
  public String toString() {
    final StringBuilder sb = new StringBuilder();
    sb.append("Could not parse configuration option.\nOption: ");
    sb.append(key);
    sb.append("\nGiven value: \"");
    sb.append(value);
    sb.append("\"\n");
    sb.append(message);
    return sb.toString();
  }
  
}
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