### Question:
OVFUtils { public static String getApplicationName(String ovf) { try { OvfDefinition ovfDocument = OvfDefinition.Factory.newInstance(ovf); return ovfDocument.getVirtualSystemCollection().getId(); } catch(OvfRuntimeException ex) { logger.info("Error parsing OVF file: " + ex.getMessage()); ex.printStackTrace(); return null; } }  static String getApplicationName(String ovf); static String getDeploymentName(String ovf); static OvfDefinition getOvfDefinition(String ovf); static int getDiskCapacityInGb(int capacity, String units); static String getIsoPathFromVm(VirtualHardwareSection virtHwSection, OvfDefinition ovfDocument); static boolean usesACacheImage(VirtualSystem virtualSystem1); static boolean containsVMWithThatOvfId(String ovf, String ovfId); static VMLimits getUpperAndLowerVMlimits(VirtualSystem virtualSystem); static int getPriceSchema(ProductSection productSection); static ProductSection getProductionSectionForOvfID(String ovf, String ovfId); static VirtualSystem getVirtualSystemForOvfId(String ovf, String ovfId); static String getDiskId(VirtualHardwareSection virtualHardwareSection); static int getCapacity(OvfDefinition ovfDocument, String diskId); static String getFileId(String diskId, Disk[] diskList); static String getUrlImg(OvfDefinition ovfDocument, String fileId); static AsceticSLAInfo getVMSlaInfo(OvfDefinition ovfDocument, String slaInfoTerm, String ovfId); static AsceticSLAInfo getAppSlaInfo(OvfDefinition ovfDocument, String slaInfoTerm); static List<AsceticTermMeasurement> getVMTermMeasurement(OvfDefinition ovfDocument, String ovfId); static List<String> getOVFVMIds(OvfDefinition ovfDocument);  }### Answer:
@Test public void getApplicationNameTest() throws IOException { System.out.println(threeTierWebAppOvfString); String name = OVFUtils.getApplicationName(threeTierWebAppOvfString); assertEquals("threeTierWebApp", name); name = OVFUtils.getApplicationName("sdadad"); assertEquals(null, name); }