/**
* Get the big integer value from the specified (single-valued) attribute.
*
* @param name Attribute from which to retrieve the big integer value.
* @return null if the value is null otherwise the big integer value for the attribute.
* @throws ClassCastException if the object in the attribute is not a big integer.
* @throws IllegalArgumentException if the attribute is a multi-valued (rather than
* single-valued).
* @since 1.4
*/
public BigInteger findBigInteger(final String name) {
final Attribute attribute = find(name);
return attribute == null ? null : AttributeUtil.getBigIntegerValue(attribute);
}
