public boolean contains(Object o) {
        return this.backingList.contains(o);
    }
Creates a new {@code SimpleNamedFilterList} instance with the specified {@code name} and {@code backingList}.

@param name        the name to assign to this instance.
@param backingList the list instance used to back all of this class's {@link List} method implementations.
@throws IllegalArgumentException if {@code name} is null or empty.
@throws NullPointerException     if the backing list is {@code null}.
web/src/main/java/org/apache/shiro/web/filter/mgt/SimpleNamedFilterList.java