OK, I'm going to answer my own question.
First of all, thanks to Michael Dibbets for your answers as well.
--disable-web-security and --allow-file-access-from-filesdoes not work. I did not go to my native plugins and expanded the chrome from its source, since it seems to take time.
Decision:
chromedriver selenium java .
Slanec , .
java:
System.setProperty("webdriver.chrome.driver", "C:/.../chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("URL_OF_THE_PAGE");
WebElement link = driver.findElement(By.linkText("TEXT_IN_THE_LINK"));
link.click();
WebElement choose_file_input = driver.findElement(By.className("CLASS_OF_THE_INPUT"));
choose_file_input.sendKeys("PATH_TO_FILE");
!