public boolean equals(Object obj)
	{
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		final KeyValuePair other = (KeyValuePair) obj;
		if (key == null)
		{
			if (other.key != null)
				return false;
		} else if (!key.equals(other.key))
			return false;
		if (value == null)
		{
			if (other.value != null)
				return false;
		} else if (!value.equals(other.value))
			return false;
		return true;
	}