code: public static Collection<URL> forWebInfLib(final ServletContext servletContext) {
          final Collection<URL> urls = new ArrayList<URL>();
          Set<?> resourcePaths = servletContext.getResourcePaths("/WEB-INF/lib");
          if (resourcePaths == null) {
              return urls;
          }
          for (Object urlString : resourcePaths) {
              try {
                  urls.add(servletContext.getResource((String) urlString));
              } catch (MalformedURLException e) { /*fuck off*/ }
          }
          return distinctUrls(urls);
      }
docs: Returns a distinct collection of URLs based on the {@code WEB-INF/lib} folder.
  <p>
  This finds the URLs using the {@link ServletContext}.
  <p>
  The returned URLs retains the order of the given {@code classLoaders}.
  
  @return the collection of URLs, not null