public List<String> getHeaders() {
		if (CollectionUtils.isEmpty(headers)) {
			headers = new ArrayList<>();
		}
		return headers;
	}
@Test
	public void test3() {
		Assertions.assertThat(metadataLocalProperties.getHeaders().contains("c")).isTrue();
		Assertions.assertThat(metadataLocalProperties.getHeaders().contains("d")).isTrue();
	}