docs: protected Xpp3Dom createSREConfiguration() throws MojoExecutionException, MojoFailureException {
  		final Xpp3Dom xmlConfiguration = new Xpp3Dom("configuration"); //$NON-NLS-1$
  		final Xpp3Dom xmlArchive = new Xpp3Dom("archive"); //$NON-NLS-1$
  		xmlConfiguration.addChild(xmlArchive);
  
  		final String mainClass = getMainClass();
  		if (mainClass.isEmpty()) {
  			throw new MojoFailureException("the main class of the SRE is missed"); //$NON-NLS-1$
  		}
  		final Xpp3Dom xmlManifest = new Xpp3Dom("manifest"); //$NON-NLS-1$
  		xmlArchive.addChild(xmlManifest);
  		final Xpp3Dom xmlManifestMainClass = new Xpp3Dom("mainClass"); //$NON-NLS-1$
  		xmlManifestMainClass.setValue(mainClass);
  		xmlManifest.addChild(xmlManifestMainClass);
  
  		final Xpp3Dom xmlSections = new Xpp3Dom("manifestSections"); //$NON-NLS-1$
  		xmlArchive.addChild(xmlSections);
  		final Xpp3Dom xmlSection = new Xpp3Dom("manifestSection"); //$NON-NLS-1$
  		xmlSections.addChild(xmlSection);
  		final Xpp3Dom xmlSectionName = new Xpp3Dom("name"); //$NON-NLS-1$
  		xmlSectionName.setValue(SREConstants.MANIFEST_SECTION_SRE);
  		xmlSection.addChild(xmlSectionName);
  		final Xpp3Dom xmlManifestEntries = new Xpp3Dom("manifestEntries"); //$NON-NLS-1$
  		xmlSection.addChild(xmlManifestEntries);
  
  		ManifestUpdater updater = getManifestUpdater();
  		if (updater == null) {
  			updater = new ManifestUpdater() {
  
  				@Override
  				public void addSREAttribute(String name, String value) {
  					assert name != null && !name.isEmpty();
  					if (value != null && !value.isEmpty()) {
  						getLog().debug("Adding to SRE manifest: " + name + " = " + value);  //$NON-NLS-1$//$NON-NLS-2$
  						final Xpp3Dom xmlManifestEntry = new Xpp3Dom(name);
  						xmlManifestEntry.setValue(value);
  						xmlManifestEntries.addChild(xmlManifestEntry);
  					}
  				}
  
  				@Override
  				public void addMainAttribute(String name, String value) {
  					//
  				}
  
  			};
  		}
  
  		buildManifest(updater, mainClass);
  
  		return xmlConfiguration;
  	}