Offline inclusion of XMLSchema with xcj

I have an XSD file that reference and element xs:schema. When I run xcj connected to the internet it creates the appropriate JAXB objects. When I try and reference XMLSchema.xsd as a local file it fails.

How do I reference the local xsd file copy of XMLSchema.xsd so I can run xcj offline to create the JAXB classes?

Currently I call xcj -d out schema0.xsd schema1.xsd

Schema0.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://ift.tt/rAg5Mm" 
    xmlns="http://ift.tt/rAg5Mm" xmlns:xs="http://ift.tt/tphNwY" 
    elementFormDefault="qualified">

    <xs:import namespace="http://ift.tt/tphNwY" schemaLocation="http://ift.tt/1ifJ804"/>
    <xs:element name="children">
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="1" name="childname" />
                <xs:element ref="xs:schema" />
                <xs:any />
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>

Schema1.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema 
targetNamespace="http://ift.tt/rAg5Mm" 
xmlns="http://ift.tt/rAg5Mm" 
xmlns:xs="http://ift.tt/tphNwY" 
elementFormDefault="qualified">
    <xs:import namespace="http://ift.tt/tphNwY"  schemaLocation="http://ift.tt/1ifJ804" />
    <xs:element name="person">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="firstname" type="xs:string"/>
                <xs:element name="lastname" type="xs:string"/>
                <xs:any minOccurs="0"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>