JAXB falha ao gerar classes Java para XBRL

Estou tentando gerar classes Java para tipos definidos em XBRL.

Meu processo de construção é baseado no Maven 2 e aqui estão meus testes. Eu só colo obuild seção, que conta com algumas propriedades:

package é o nome do meu pacote de destino

catalog é o caminho e o nome do arquivo do catálogo. porque eu não tenho conexão com a internet, eu tenho várias entradas, mas eu acho que elas sempre são necessárias

-- TR9401 for XBRL resources --
SYSTEM http://www.xbrl.org/2003/XLink http/www.xbrl.org/2003/xl-2003-12-31.xsd
SYSTEM http://www.w3.org/1999/xlink http/www.xbrl.org/2003/xlink-2003-12-31.xsd

xsd.path é o diretório onde reside o XSD

xsd.file é o nome do arquivo do seguinte XSD minimalista

     <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
       <xs:import namespace="http://www.xbrl.org/2003/instance"
        schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
     </xs:schema>

Todos os plugins que tentei não importamxl:nonEmptyURI.

Masxl é mapeado parahttp://www.xbrl.org/2003/XLink (que está no meu catálogo) que importa<import namespace="http://www.w3.org/1999/xlink" schemaLocation="xlink-2003-12-31.xsd"/> que definenonEmptyURI

O que há de errado? Como posso consertar isso?

Apache CXF
        <plugin>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-xjc-plugin</artifactId>
            <executions>
                <execution>
                    <id>generate-sources</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>xsdtojava</goal>
                    </goals>
                    <configuration>
                        <xsdOptions>
                            <xsdOption>
                                <catalog>${catalog}</catalog>
                                <xsd>${xsd.path}/${xsd.file}</xsd>
                                <packagename>${package}</packagename>
                            </xsdOption>
                        </xsdOptions>
                    </configuration>
                </execution>
            </executions>
        </plugin>

Falha com

parsing a schema...

[ERROR] src-resolve: Cannot resolve the name 'xl:nonEmptyURI' to a(n) 'type definition' component.
  line 389 of cache/http/www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd
jvnet maven-jaxb2-plugin
        <plugin>
            <!-- http://jaxb.java.net/ -->
            <groupId>org.jvnet.jaxb2.maven2</groupId>
            <artifactId>maven-jaxb2-plugin</artifactId>
            <version>0.8.2</version>
            <executions>
                <execution>
                    <id>generate</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>generate</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <catalog>${catalog}</catalog>
                <schemaDirectory>${xsd.path}</schemaDirectory>
                <generatePackage>${package}</generatePackage>
                <strict>false</strict>
                <extension>true</extension>
                <plugins>
                    <plugin>
                        <groupId>org.jvnet.jaxb2_commons</groupId>
                        <artifactId>jaxb2-basics</artifactId>
                        <version>0.6.4</version>
                    </plugin>
                    <plugin>
                        <groupId>org.jvnet.jaxb2_commons</groupId>
                        <artifactId>jaxb2-basics-annotate</artifactId>
                        <version>0.6.4</version>
                    </plugin>
                </plugins>
                <args>
                    <arg>-Xannotate</arg>
                    <arg>-XtoString</arg>
                </args>
            </configuration>
        </plugin>

O erro é o mesmo, um pouco mais detalhado

[INFO] Parsing input schema(s)...
[ERROR] Error while parsing schema(s).Location [ cache/http/www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd{389,74}].
org.xml.sax.SAXParseException: undefined simple type 'xl:nonEmptyURI'
    at com.sun.xml.xsom.impl.parser.ParserContext$1.reportError(ParserContext.java:180)
    at com.sun.xml.xsom.impl.parser.NGCCRuntimeEx.reportError(NGCCRuntimeEx.java:175)
    at com.sun.xml.xsom.impl.parser.DelayedRef.resolve(DelayedRef.java:110)
[...]
[ERROR] Error while parsing schema(s).Location [ cache/http/www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd{412,77}].
org.xml.sax.SAXParseException: undefined simple type 'xl:nonEmptyURI'
    at com.sun.xml.xsom.impl.parser.ParserContext$1.reportError(ParserContext.java:180)
    at com.sun.xml.xsom.impl.parser.NGCCRuntimeEx.reportError(NGCCRuntimeEx.java:175)
    at com.sun.xml.xsom.impl.parser.DelayedRef.resolve(DelayedRef.java:110)
[ERROR] Failed to execute goal org.jvnet.jaxb2.maven2:maven-jaxb2-plugin:0.8.2:generate (generate) on project solvency2: Unable to parse input schema(s). Error messages should have been provided. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.jvnet.jaxb2.maven2:maven-jaxb2-plugin:0.8.2:generate (generate) on project solvency2: Unable to parse input schema(s). Error messages should have been provided.
Mojo jaxb2-maven-plugin
         <plugin>
            <!--http://mojo.codehaus.org/ -->
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>jaxb2-maven-plugin</artifactId>
            <version>1.5</version>
            <executions>
                <execution>
                    <id>xjc</id>
                     <phase>generate-sources</phase>
                    <goals>
                        <goal>xjc</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <schemaDirectory>${xsd.path}</schemaDirectory>
                <packageName>${package}</packageName>
                <catalog>${catalog}</catalog>
            </configuration>
        </plugin>

O mesmo erro, dito de forma diferente por Xerces

[ERROR] file:[...]cache/http/www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd[472,74]
org.xml.sax.SAXParseException: src-resolve: Cannot resolve the name 'xl:nonEmptyURI' to a(n) 'simpleType definition' component.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)

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