#vulnerable code 
                             @Test
	public void testPostUTF8() {
		HttpResponse<JsonNode> response = Unirest.post("http://httpbin.org/post").field("param3", "こんにちは").asJson();

		assertEquals(response.getBody().getObject().getJSONObject("form").getString("param3"), "こんにちは");
	} 
                            #location 5 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                             @Test
	public void testPostUTF8() {
		HttpResponse response = Unirest.post(MockServer.POSTJSON)
				.header("accept", "application/json")
				.field("param3", "こんにちは")
				.asJson();

		FormCapture json = TestUtils.read(response, FormCapture.class);
		json.assertQuery("param3", "こんにちは");
	}