output: #fixed code
                                  public void captureScreenShot(String screenShotName) throws IOException, InterruptedException {
          File framePath = new File(System.getProperty("user.dir")+"/src/main/resources/");
          File scrFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
          if(driver.toString().split(":")[0].trim().equals("AndroidDriver")){
              String androidModel = androidDevice.deviceModel(device_udid);
              try {
                  FileUtils.copyFile(scrFile, new File(System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                          + androidModel + "/" + screenShotName + ".png"));
                  File [] files1 = framePath.listFiles();
                  for (int i = 0; i < files1.length; i++){
                      if (files1[i].isFile()){ //this line weeds out other directories/folders
                          System.out.println(files1[i]);
                          Path p = Paths.get(files1[i].toString());
                          String fileName=p.getFileName().toString().toLowerCase();
                          if(androidModel.toString().toLowerCase().contains(fileName.split(".png")[0].toLowerCase())){
                              try {
                                  imageUtils.wrapDeviceFrames(files1[i].toString(),System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + androidModel + "/" + screenShotName + ".png",System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + androidModel + "/" + screenShotName + "_framed.png");
                                  ExtentTestManager.logOutPut(System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + androidModel + "/" + screenShotName + "_framed.png",screenShotName.toUpperCase());
                                  break;
                              } catch (InterruptedException e) {
                                  e.printStackTrace();
                              } catch (IM4JavaException e) {
                                  e.printStackTrace();
                              }
                          }
                      }
                  }
              } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              }
          }else if(driver.toString().split(":")[0].trim().equals("IOSDriver"))
          {
              String iosModel=iosDevice.getIOSDeviceProductTypeAndVersion(device_udid);
              try {
                  FileUtils.copyFile(scrFile, new File(System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                          + iosModel + "/" + screenShotName + ".png"));
                  File [] files1 = framePath.listFiles();
                  for (int i = 0; i < files1.length; i++){
                      if (files1[i].isFile()){ //this line weeds out other directories/folders
                          System.out.println(files1[i]);
                          Path p = Paths.get(files1[i].toString());
                          String fileName=p.getFileName().toString().toLowerCase();
                          if(iosModel.toString().toLowerCase().contains(fileName.split(".png")[0].toLowerCase())){
                              try {
                                  imageUtils.wrapDeviceFrames(files1[i].toString(),System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + iosModel + "/" + screenShotName + ".png",System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + iosModel + "/" + screenShotName + "_framed.png");
                                  ExtentTestManager.logOutPut(System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + iosModel + "/" + screenShotName + "_framed.png",screenShotName.toUpperCase());
                                  break;
                              } catch (InterruptedException e) {
                                  e.printStackTrace();
                              } catch (IM4JavaException e) {
                                  e.printStackTrace();
                              }
                          }
                      }
                  }
              } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              }
          }
      }
input: #vulnerable code 
                                  public void captureScreenShot(String screenShotName) throws IOException, InterruptedException {
          File framePath = new File(System.getProperty("user.dir")+"/src/main/resources/");
          File scrFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
          if(driver.toString().split(":")[0].trim().equals("AndroidDriver")){
              String androidModel = androidDevice.deviceModel(device_udid);
              try {
                  FileUtils.copyFile(scrFile, new File(System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                          + androidModel + "/" + screenShotName + ".png"));
                  File [] files1 = framePath.listFiles();
                  for (int i = 0; i < files1.length; i++){
                      if (files1[i].isFile()){ //this line weeds out other directories/folders
                          System.out.println(files1[i]);
                          Path p = Paths.get(files1[i].toString());
                          String fileName=p.getFileName().toString().toLowerCase();
                          if(androidModel.toString().toLowerCase().contains(fileName.split(".png")[0].toLowerCase())){
                              try {
                                  imageUtils.wrapDeviceFrames(files1[i].toString(),System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + androidModel + "/" + screenShotName + ".png",System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + androidModel + "/" + screenShotName + "_framed.png");
                                  ExtentTestManager.logOutPut(System.getProperty("user.dir") + "/target/screenshot/android/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + androidModel + "/" + screenShotName + "_framed.png",screenShotName.toUpperCase());
                                  break;
                              } catch (InterruptedException e) {
                                  e.printStackTrace();
                              } catch (IM4JavaException e) {
                                  e.printStackTrace();
                              }
                          }
                      }
                  }
              } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              }
          }else if(driver.toString().split(":")[0].trim().equals("IOSDriver"))
          {
              String iosModel=iosDevice.getDeviceName(device_udid);
              try {
                  FileUtils.copyFile(scrFile, new File(System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                          + iosModel + "/" + screenShotName + ".png"));
                  File [] files1 = framePath.listFiles();
                  for (int i = 0; i < files1.length; i++){
                      if (files1[i].isFile()){ //this line weeds out other directories/folders
                          System.out.println(files1[i]);
                          Path p = Paths.get(files1[i].toString());
                          String fileName=p.getFileName().toString().toLowerCase();
                          if(iosModel.toString().toLowerCase().contains(fileName.split(".png")[0].toLowerCase())){
                              try {
                                  imageUtils.wrapDeviceFrames(files1[i].toString(),System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + iosModel + "/" + screenShotName + ".png",System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + iosModel + "/" + screenShotName + "_framed.png");
                                  ExtentTestManager.logOutPut(System.getProperty("user.dir") + "/target/screenshot/iPhone/" + device_udid.replaceAll("\\W", "_") + "/"
                                          + iosModel + "/" + screenShotName + "_framed.png",screenShotName.toUpperCase());
                                  break;
                              } catch (InterruptedException e) {
                                  e.printStackTrace();
                              } catch (IM4JavaException e) {
                                  e.printStackTrace();
                              }
                          }
                      }
                  }
              } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              }
          }
      } 
                              #location 10 
                              #vulnerability type NULL_DEREFERENCE