#vulnerable code 
                                @Override
    public void onScreenCaptureAdded(Test test, ScreenCapture screenCapture) throws IOException {
        storeUrl();
        screenCapture.setReportObjectId(reportId);
        
        createMedia(test, screenCapture);
        
        if (media == null) {
            media = new MediaStorageManagerFactory().getManager("http");
            media.init(url);
        }
        
        media.storeMedia(screenCapture);
    } 
                            #location 10 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Override
    public void onScreenCaptureAdded(Test test, ScreenCapture screenCapture) throws IOException {
        storeUrl();
        screenCapture.setReportObjectId(reportId);
        
        createMedia(test, screenCapture);
        
        initMedia();
        
        media.storeMedia(screenCapture);
    }