code: private void prepXsdXsl() throws MojoExecutionException {
          try {
              xsdXsl = new File(getBaseDir(), xsdXslFile);
              initOutputDir(xsdXsl.getParentFile());
              writeXsdStylesheet(xsdXsl);
          } catch (Exception e) {
              throw new MojoExecutionException("Failed to write local copy of XSD stylesheet: " + e, e);
          }
      }
docs: Read a wsdl.xsl (stylesheet) from a resource, and write it to a working directory.
  
  @return the on-disk wsdl.xsl file