XML : Namespace of generated JAXB classes

i have problems with the generation of jaxb classes. Especially with namespaces of imported elements. I have the following two schema files:

extension.xsd

  <?xml version="1.0" encoding="UTF-8"?>  <xs:schema targetNamespace="http://www.example.org/extension"      elementFormDefault="qualified" attributeFormDefault="unqualified"      xmlns="http://www.example.org/extension" xmlns:xs="http://www.w3.org/2001/XMLSchema"      xmlns:extern="http://www.example.org/extern">        <xs:import namespace="http://www.example.org/extern"          schemaLocation="extern.xsd" />      <xs:element name="Element1">          <xs:complexType>              <xs:sequence>                  <xs:element name="ElementB" type="extern:ElementB"                      maxOccurs="unbounded" />              </xs:sequence>          </xs:complexType>      </xs:element>          ...  </xs:schema>    

extern.xsd

  <?xml version="1.0" encoding="UTF-8"?>  <xs:schema targetNamespace="http://www.example.org/extern"      elementFormDefault="qualified" attributeFormDefault="unqualified"      xmlns="http://www.example.org/extern" xmlns:xs="http://www.w3.org/2001/XMLSchema">        <xs:complexType name="ElementA">          <xs:sequence>                  ...          </xs:sequence>          <xs:attribute name="name"/>      </xs:complexType>        <xs:complexType name="ElementB">          <xs:sequence>                  ...          </xs:sequence>          <xs:attribute name="name"/>      </xs:complexType>        <xs:complexType name="ElementC">          <xs:sequence>                  ...          </xs:sequence>          <xs:attribute name="name"/>      </xs:complexType>          ...  </xs:schema>    

example xml file

  <Doc targetNamespace="http://www.example.org/extern    xmlns="http://www.example.org/extern">        ...      <extension:Element1 xmlns:extension="http://www.example.org/extension">          <ElementB name="someName">                  ....          </ElementB>      </test:Element1 >      ...  </Doc>    

extern.xsd contains a lot of different complex types. In extension.xsd I want to reuse one of this complex types (ElementB). extern.xsd is fixed and cant't be modified. The targetNamespace of the xml is fixed too.

2 Questions:

1.) The generated Element1.class looks like

  @XmlRootElement(name = "Element1", namespace = "http://www.example.org/extension")  public class Element1{        @XmlElement(name = "ElementB", namespace = "http://www.example.org/extension", required = true)      protected List<ElementB> _elementB;    

but what I need would be:

  ...          @XmlElement(name = "ElementB", namespace = "http://www.example.org/extern", required = true)          protected List<ElementB> _elementB;    

or

  ...          @XmlElement(name = "ElementB")          protected List<ElementB> _elementB;    

So, how I get ElementB to have the namespace http://www.example.org/extern? Because with the other namespace I can't unmarschal an "Element1 xml node".

2.) In extension.xsd I only need ElementB, but jaxb (using eclipse) generates classes for all elements of extern.xsd. Can be specified which classes should be generated?

Thanks in advance!