XML : Jsonix-schema-compiler cannot convert .xsd file to JSON Object

I converted a few .xsd files to a JSON Object with the jsonix-schema-compiler, but there is one .xsd with qualified namespaces.

The following .xsd cannot be converted - there is no error message, but also no output is generated. I tried to switch the logoutput to TRACE, but that does not help, because it just outputs nothing.

  <?xml version="1.0" encoding="UTF-8"?>   <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="urn:ietf:params:xml:ns:lost1" xmlns:p2="http://www.opengis.net/gml" xmlns:ns1="urn:ietf:params:xml:ns:lost1">    <xs:import namespace="http://www.opengis.net/gml" schemaLocation="p2.xsd"/>        <xs:element name="findService">            <xs:complexType>                <xs:sequence>                    <xs:element ref="ns1:location"/>                    <xs:element ref="ns1:service"/>                </xs:sequence>                <xs:attribute name="recursive" use="required" type="xs:boolean"/>                <xs:attribute name="serviceBoundary" use="required" type="xs:NCName"/>             </xs:complexType>        </xs:element>        <xs:element name="location">            <xs:complexType>                <xs:sequence>                    <xs:element ref="p2:Point"/>                </xs:sequence>                <xs:attribute name="id" use="required" type="xs:NMTOKEN"/>                <xs:attribute name="profile" use="required" type="xs:NCName"/>             </xs:complexType>         </xs:element>        <xs:element name="service" type="xs:NMTOKEN"/>   </xs:schema>    

Any ideas why this can't be converted?