Nillable on #XmlAnyElement - jaxb

Question

I made a general class for plural elements for JAXB.
#XmlTransient
public abstract class Plural<S> {
#XmlAnyElement(lax = true)
private Collection<S> singulars;
}
With following classes,
#XmlRootElement
public class Item {
//#XmlValue // problem with xsi:nill and ""
#XmlElement(nillable = true)
private String name;
}
#XmlRootElement
public class Items extends Plural<Item> {
}
When I declare the name as #XmlEement(nilalble = true), it works fine. But #XmlValue makes some problem between xsi:nil and "".
Is there any way to set nillable = true on #XmlAnyElement?
UPDATE ----------------------------------------------------------
When Item#name annotated with #XmlElement, following XML marshalls and unmarshalls successfully.
<items xmlns="http://jinahya.googlecode.com/xml/bind/test">
<item id="-4939700912221365683">
<name xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
</item>
<item>
<name>name</name>
</item>
<item>
<name xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
</item>
<item id="-8544902644460968391">
<name xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
</item>
<item id="525642804765733165">
<name xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/>
</item>
</items>
When Item#name annotated with #XmlValue, following output XML marshalls and unmarshals but failed on equality testing.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<items xmlns="http://jinahya.googlecode.com/xml/bind/test">
<item id="7812630870400466385">name</item>
<item>name</item>
<item id="-1067677982428177088"/>
<item id="5609376399324841172">name</item>
<item id="-4755856949417090129"/>
</items>
Which seems xsi:nil omitted on each item element. So Item#equals failed on each Items. The "" without xsi:nill parsed as empty element witch each came from nulls. Is it just #XmlValue's problem? #Blaise Doughan I learned about #XmlAnyElement(lax = true) from your blog entry anyway. Thanks.
And here comes what I want it be.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<items xmlns:xsi="..." xmlns="http://jinahya.googlecode.com/xml/bind/test">
<item id="7812630870400466385">name</item>
<item>name</item>
<item id="-1067677982428177088" xsi:nil="true">
<item id="5609376399324841172">name</item>
<item id="-4755856949417090129" xsi:nil="true">
</items>