GetXMLSchema java method generates invalid XML Schema document

Hi all,
I managed to get the xdk FAQ demo to work eventually on oracle 9.2.0.1.0 for windows, I noticed however that when I generate an XML Schema definition against a query, the document contains an outdated namespace declaration (minor flaw) and "nullable" attributes instead of "nillable", resulting in an invalid XML Schema document when edited with certain tools like Altova's XmlSpy.
How can I fix this?
See below for the XML Schema source.
Bye,
Flavio
<xsd:schema xmlns:xsd="http://www.w3.org/2000/10/XMLSchema">
<xsd:element name="ROWSET">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="ROW" minOccurs="0" maxOccurs="unbounded">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="CATEGORY" type="xsd:string" minOccurs="0"/>
<xsd:element name="QUESTION" type="xsd:string" minOccurs="0"/>
<xsd:element name="ANSWER" type="xsd:string" minOccurs="0"/>
<xsd:element name="LANGUAGE" type="xsd:string" minOccurs="0"/>
<xsd:element name="SENDBY" type="xsd:string" nullable="true" minOccurs="0"/>
<xsd:element name="CREATETIME" type="xsd:string" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="num" type="xsd:integer"/>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>

With my (trial) copy of XMLSPY (version 2004 rel.3), I get following pop-up when opening that schema:
"This schema is written in an old standard:
http://www.w3.org/2000/10/XMLSchema
Do you want XMLSPY to convert it to the new one:
http://www.w3.org/2001/XMLSchema"
When I click "Yes" and save, I get a perfectly valid schema (with nullable replaced by nillable).

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GetXMLSchema java method generates invalid XML Schema document

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