getNestedProperty problem with BeanUtils

Hi

I'm encountering a problem with BeanUtils and specifically the
getNestedProperty method of the PropertyUtils class.

I have an object defined like this (names changed):

public class FredBean {

	String _id
	Date   _startDate;
	Date   _endDate;
	com.fred.Items _items;

	public String getId() { return _id; }

	etc ...
}


com.fred.Items is like this:

public class Items {

	java.util.List _itemList;

	public List getItemList() { return _itemList; }
	...
}


My application attempts to derive the Items as follows:


MyBeanUtils.getPropertyUtils().getNestedProperty(FredBeanInstance,
"Id.ItemList");

This fails with a java.lang.NoSuchMethodException. Unknown property
'Id'.


I don't understand this as this is directly analogous to the examples
provided in the BeanUtils documentation:

http://commons.apache.org/beanutils/commons-beanutils-1.7.0/docs/api/org/apache/commons/beanutils/package-summary.html#standard.nested

.... and there are getters for the fields concerned.

Am I missing osmething obvious? Any help gratefully received.

Thanks.