    void multipleValuesPerNameIterator() {
        final HttpHeadersBase headers = newEmptyHeaders();
        headers.add("name1", "value1");
        headers.add("name1", "value2");
        assertThat(headers.size()).isEqualTo(2);

        final List<String> values = ImmutableList.copyOf(headers.valueIterator("name1"));
        assertThat(values).containsExactly("value1", "value2");
    }
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.