Quick java program to wrap a minecraft server and run it anywhere java can be compiled an ran, such as repl.it

gistfile1.txt

import java.io.*;
import java.lang.ProcessBuilder.Redirect;
import java.net.URL;
import java.util.Scanner;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class Main {
    public static void main(String[] args) throws IOException, InterruptedException {
        Scanner userInput = new Scanner(System.in);

        try (BufferedInputStream in = new BufferedInputStream(new URL("https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip").openStream());
             FileOutputStream fileOutputStream = new FileOutputStream("ngrok.zip")) {
            byte dataBuffer[] = new byte[1024];
            int bytesRead;
            while ((bytesRead = in.read(dataBuffer, 0, 1024)) != -1) {
                fileOutputStream.write(dataBuffer, 0, bytesRead);
            }
        } catch (IOException e) {
            // handle exception
        }

        unzip("ngrok.zip", "ngrok");
        new File("ngrok.zip").delete();

        String token = "Your ngrok token here";

        System.out.println("Marking ngrok as executable");
        File ngrokFile = new File(System.getProperty("user.dir") + "/ngrok/ngrok");
        ngrokFile.setExecutable(true);

        System.out.println("Setting auth token...");
        Process ngrokSetAuth = new ProcessBuilder(System.getProperty("user.dir") + "/ngrok/ngrok", "authtoken", token).start();
        ngrokSetAuth.waitFor();
        System.out.println("Auth token set!");

        System.out.println("Starting ngrok");
        ProcessBuilder ngrok = new ProcessBuilder(System.getProperty("user.dir") + "/ngrok/ngrok", "tcp", "25565");
        ngrok.redirectOutput(Redirect.INHERIT);
        ngrok.redirectError(Redirect.INHERIT);
        ngrok.start();

        try (BufferedInputStream in = new BufferedInputStream(new URL("https://ci.tivy.ca/job/Airplane-1.17/lastSuccessfulBuild/artifact/launcher-airplane.jar").openStream());
             FileOutputStream fileOutputStream = new FileOutputStream("paper.jar")) {
            byte dataBuffer[] = new byte[1024];
            int bytesRead;
            while ((bytesRead = in.read(dataBuffer, 0, 1024)) != -1) {
                fileOutputStream.write(dataBuffer, 0, bytesRead);
            }
        } catch (IOException e) {
            // handle exception
        }

        File eula = new File("eula.txt");
        eula.createNewFile();

        System.out.println("You agree to the Mojang EULA");
        FileWriter eulaAccepter = new FileWriter("eula.txt");
        eulaAccepter.write("eula=true");
        eulaAccepter.close();

        ProcessBuilder paper = new ProcessBuilder(System.getProperty("java.home") + "/bin/java", "-jar", "-Xmx2500M", "-Xms2500M", "paper.jar");
        //paper.directory(new File("server"));
        paper.redirectOutput(Redirect.INHERIT);
        paper.redirectInput(Redirect.INHERIT);
        Process paperProcess = paper.start();
        paperProcess.waitFor();
    }

    private static void unzip(String zipFilePath, String destDir) {
        File dir = new File(destDir);
        // create output directory if it doesn't exist
        if (!dir.exists()) dir.mkdirs();
        FileInputStream fis;
        //buffer for read and write data to file
        byte[] buffer = new byte[1024];
        try {
            fis = new FileInputStream(zipFilePath);
            ZipInputStream zis = new ZipInputStream(fis);
            ZipEntry ze = zis.getNextEntry();
            while (ze != null) {
                String fileName = ze.getName();
                File newFile = new File(destDir + File.separator + fileName);
                System.out.println("Unzipping to " + newFile.getAbsolutePath());
                //create directories for sub directories in zip
                new File(newFile.getParent()).mkdirs();
                FileOutputStream fos = new FileOutputStream(newFile);
                int len;
                while ((len = zis.read(buffer)) > 0) {
                    fos.write(buffer, 0, len);
                }
                fos.close();
                //close this ZipEntry
                zis.closeEntry();
                ze = zis.getNextEntry();
            }
            //close last ZipEntry
            zis.closeEntry();
            zis.close();
            fis.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}