code: public static void addToClasspath(final File file, final ClassLoader classLoader) {
          checkNotNull("file", file);
          try {
              addToClasspath(file.toURI().toURL(), classLoader);
          } catch (final MalformedURLException e) {
              throw new RuntimeException(e);
          }
      }
docs: Adds a file to the classpath.
  
  @param file
  File to add - Cannot be <code>null</code>.
  @param classLoader
  Class loader to use - Cannot be <code>null</code>.