code: @Nonnull
    public static Document newDocument (@Nonnull final DocumentBuilder aDocBuilder)
    {
      return newDocument (aDocBuilder, (EXMLVersion) null);
    }
docs: Create a new XML document without document type using version
  {@link EXMLVersion#XML_10}. A custom document builder is used.
  
  @param aDocBuilder
  The document builder to use. May not be <code>null</code>.
  @return The created document. Never <code>null</code>.