#vulnerable code 
                             @Test
	public void parseXml_missing_longitude() {
		ICalParameters params = new ICalParameters();

		Element element = xcalPropertyElement(marshaller, "<latitude>12.34</latitude>");
		Result<Geo> result = marshaller.parseXml(element, params);

		Geo prop = result.getValue();
		assertEquals(12.34, prop.getLatitude(), 0.001);
		assertNull(prop.getLongitude());
		assertWarnings(0, result.getWarnings());
	} 
                            #location 6 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                             @Test
	public void parseXml_missing_longitude() {
		Result<Geo> result = parseXCalProperty("<latitude>12.34</latitude>", marshaller);

		Geo prop = result.getValue();
		assertEquals(12.34, prop.getLatitude(), 0.001);
		assertNull(prop.getLongitude());
		assertWarnings(0, result.getWarnings());
	}