Download WSDL and include/imported XSD files

To reduce the external build dependencies of my maven web application project, in particular the jaxws-maven-plugin part of my project,  I stored the WSDL file and all its dependencies in my project and configured the plugin wsdlUrls to point to them. As shown below:

<configuration>
   <wsdlUrls>
         <wsdlUrl>${basedir}/src/main/resources/wsdl/SDMXQuery/SDMXQuery_1.wsdl</wsdlUrl>
   </wsdlUrls>
</configuration>

I downloaded all the files with SoapUI (Version 5.0.0) by creating a new SoapUI project with the URL of the WSDL as follows:

Then I clicked on the WSDL in the newly created project (See arrow 1 below), changed to the "WSDL Content" tab, and then pressed the small button (See arrow 2 below) with the tool tip: "Export the entire WSDL and include/imported files to a local directory". 

Then I chose the directory within my project.

After that, everything was nicely stored in the directory and could be configured in the POM file of my project as shown above.