output: #fixed code
                                  private static void enumerateProperties(Map<String, List<Object>> values, EnumWbemClassObject enumerator,
              String[] properties, ValueType[] propertyTypes) {
          if (propertyTypes.length > 1 && properties.length != propertyTypes.length) {
              throw new IllegalArgumentException("Property type array size must be 1 or equal to properties array size.");
          }
          // Step 7: -------------------------------------------------
          // Get the data from the query in step 6 -------------------
          PointerByReference pclsObj = new PointerByReference();
          LongByReference uReturn = new LongByReference(0L);
          while (enumerator.getPointer() != Pointer.NULL) {
              HRESULT hres = enumerator.Next(new NativeLong(EnumWbemClassObject.WBEM_INFINITE), new NativeLong(1),
                      pclsObj, uReturn);
              // Requested 1; if 0 objects returned, we're done
              if (0L == uReturn.getValue() || COMUtils.FAILED(hres)) {
                  // Enumerator will be released by calling method so no need to
                  // release it here.
                  return;
              }
              VARIANT.ByReference vtProp = new VARIANT.ByReference();
  
              // Get the value of the properties
              WbemClassObject clsObj = new WbemClassObject(pclsObj.getValue());
              for (int p = 0; p < properties.length; p++) {
                  String property = properties[p];
                  hres = clsObj.Get(new BSTR(property), new NativeLong(0L), vtProp, null, null);
  
                  ValueType propertyType = propertyTypes.length > 1 ? propertyTypes[p] : propertyTypes[0];
                  switch (propertyType) {
                  // WMI Longs will return as strings
                  case STRING:
                      values.get(property).add(vtProp.getValue() == null ? "unknown" : vtProp.stringValue());
                      break;
                  // WMI Uint32s will return as longs
                  case UINT32: // WinDef.LONG TODO improve in JNA 4.3
                      values.get(property)
                              .add(vtProp.getValue() == null ? 0L : vtProp._variant.__variant.lVal.longValue());
                      break;
                  case FLOAT:
                      values.get(property).add(vtProp.getValue() == null ? 0f : vtProp.floatValue());
                      break;
                  case DATETIME:
                      // Read a string in format 20160513072950.782000-420 and
                      // parse to a long representing ms since eopch
                      values.get(property)
                              .add(vtProp.getValue() == null ? 0L : ParseUtil.cimDateTimeToMillis(vtProp.stringValue()));
                      break;
                  default:
                      // Should never get here! If you get this exception you've
                      // added something to the enum without adding it here. Tsk.
                      throw new IllegalArgumentException("Unimplemented enum type: " + propertyType.toString());
                  }
                  OleAuto.INSTANCE.VariantClear(vtProp.getPointer());
              }
              clsObj.Release();
          }
      }
input: #vulnerable code 
                                  private static void enumerateProperties(Map<String, List<Object>> values, EnumWbemClassObject enumerator,
              String[] properties, ValueType[] propertyTypes) {
          if (propertyTypes.length > 1 && properties.length != propertyTypes.length) {
              throw new IllegalArgumentException("Property type array size must be 1 or equal to properties array size.");
          }
          // Step 7: -------------------------------------------------
          // Get the data from the query in step 6 -------------------
          PointerByReference pclsObj = new PointerByReference();
          LongByReference uReturn = new LongByReference(0L);
          while (enumerator.getPointer() != Pointer.NULL) {
              HRESULT hres = enumerator.Next(new NativeLong(EnumWbemClassObject.WBEM_INFINITE), new NativeLong(1),
                      pclsObj, uReturn);
              // Requested 1; if 0 objects returned, we're done
              if (0L == uReturn.getValue() || COMUtils.FAILED(hres)) {
                  // Enumerator will be released by calling method so no need to
                  // release it here.
                  return;
              }
              VARIANT.ByReference vtProp = new VARIANT.ByReference();
  
              // Get the value of the properties
              WbemClassObject clsObj = new WbemClassObject(pclsObj.getValue());
              for (int p = 0; p < properties.length; p++) {
                  String property = properties[p];
                  hres = clsObj.Get(new BSTR(property), new NativeLong(0L), vtProp, null, null);
  
                  ValueType propertyType = propertyTypes.length > 1 ? propertyTypes[p] : propertyTypes[0];
                  switch (propertyType) {
                  // WMI Longs will return as strings
                  case STRING:
                      values.get(property).add(vtProp.getValue() == null ? "unknown" : vtProp.stringValue());
                      break;
                  // WMI Uint32s will return as longs
                  case UINT32: // WinDef.LONG TODO improve in JNA 4.3
                      values.get(property)
                              .add(vtProp.getValue() == null ? 0L : vtProp._variant.__variant.lVal.longValue());
                      break;
                  case FLOAT:
                      values.get(property).add(vtProp.getValue() == null ? 0f : vtProp.floatValue());
                      break;
                  case DATETIME:
                      // Read a string in format 20160513072950.782000-420 and
                      // parse to a long representing ms since eopch
                      values.get(property).add(ParseUtil.cimDateTimeToMillis(vtProp.stringValue()));
                      break;
                  default:
                      // Should never get here! If you get this exception you've
                      // added something to the enum without adding it here. Tsk.
                      throw new IllegalArgumentException("Unimplemented enum type: " + propertyType.toString());
                  }
                  OleAuto.INSTANCE.VariantClear(vtProp.getPointer());
              }
              clsObj.Release();
          }
      } 
                              #location 36 
                              #vulnerability type NULL_DEREFERENCE