code: public static <T extends ClassLoader> ElementMatcher.Junction<T> isChildOf(ClassLoader classLoader) {
          return classLoader == BOOTSTRAP_CLASSLOADER
                  ? new BooleanMatcher<T>(true)
                  : ElementMatchers.<T>hasChild(is(classLoader));
      }
docs: Matches any class loader that is either the given class loader or a child of the given class loader.
  
  @param classLoader The class loader of which child class loaders are matched.
  @param <T>         The type of the matched object.
  @return A matcher that matches the given class loader and any class loader that is a child of the given
  class loader.