/* Copyright (c) 2008-2013, Avian Contributors

   Permission to use, copy, modify, and/or distribute this software
   for any purpose with or without fee is hereby granted, provided
   that the above copyright notice and this permission notice appear
   in all copies.

   There is NO WARRANTY for this software.  See license.txt for
   details. */

package java.lang;

public final class Boolean implements Comparable<Boolean> {
  public static final Class TYPE = avian.Classes.forCanonicalName("Z");

  public static final Boolean FALSE = new Boolean(false);
  public static final Boolean TRUE = new Boolean(true);

  private final boolean value;

  public Boolean(boolean value) {
    this.value = value;
  }

  public Boolean(String s) {
    this.value = "true".equals(s);
  }

  public static Boolean valueOf(boolean value) {
    return (value ? Boolean.TRUE : Boolean.FALSE);
  }

  public static Boolean valueOf(String s) {
    Boolean.TRUE.booleanValue();
    return ("true".equals(s) ? Boolean.TRUE : Boolean.FALSE);
  }

  public int compareTo(Boolean o) {
    return (value ? (o.value ? 0 : 1) : (o.value ? -1 : 0));
  }

  public boolean equals(Object o) {
    return o instanceof Boolean && ((Boolean) o).value == value;
  }

  public int hashCode() {
    return (value ? 1 : 0);
  }

  public String toString() {
    return toString(value);
  }

  public static String toString(boolean v) {
    return (v ? "true" : "false");
  }

  public boolean booleanValue() {
    return value;
  }

  public static boolean parseBoolean(String string) {
    return string != null && string.equalsIgnoreCase("true");
  }
}

/* Copyright (c) 2008-2013, Avian Contributors

   Permission to use, copy, modify, and/or distribute this software
   for any purpose with or without fee is hereby granted, provided
   that the above copyright notice and this permission notice appear
   in all copies.

   There is NO WARRANTY for this software.  See license.txt for
   details. */

package java.lang;

public final class Boolean implements Comparable<Boolean> {
  public static final Class TYPE = avian.Classes.forCanonicalName("Z");

  public static final Boolean FALSE = new Boolean(false);
  public static final Boolean TRUE = new Boolean(true);

  private final boolean value;

  public Boolean(boolean value) {
    this.value = value;
  }

  public Boolean(String s) {
    this.value = "true".equals(s);
  }

  public static Boolean valueOf(boolean value) {
    return (value ? Boolean.TRUE : Boolean.FALSE);
  }

  public static Boolean valueOf(String s) {
    Boolean.TRUE.booleanValue();
    return ("true".equals(s) ? Boolean.TRUE : Boolean.FALSE);
  }

  public int compareTo(Boolean o) {
    return (value ? (o.value ? 0 : 1) : (o.value ? -1 : 0));
  }

  public boolean equals(Object o) {
    return o instanceof Boolean && ((Boolean) o).value == value;
  }

  public int hashCode() {
    return (value ? 1 : 0);
  }

  public String toString() {
    return toString(value);
  }

  public static String toString(boolean v) {
    return (v ? "true" : "false");
  }

  public boolean booleanValue() {
    return value;
  }

  public static boolean getBoolean(String name) {
    return parseBoolean(System.getProperty(name));
  }

  public static boolean parseBoolean(String string) {
    return string != null && string.equalsIgnoreCase("true");
  }
}

Add the Boolean#getBoolean method