How to close a JediTerm Widget and it's running OS process correctly? about jediterm HOT 7 CLOSED

package com.manticore.ui;

import com.jediterm.pty.PtyProcessTtyConnector;
import com.jediterm.terminal.TtyConnector;
import com.jediterm.terminal.ui.JediTermWidget;
import com.jediterm.terminal.ui.TerminalWidget;
import com.jediterm.terminal.ui.TerminalWidgetListener;
import com.jediterm.terminal.ui.UIUtil;
import com.jediterm.terminal.ui.settings.DefaultSettingsProvider;
import com.manticore.swingui.MDialog;
import com.pty4j.PtyProcess;
import com.pty4j.PtyProcessBuilder;
import org.junit.jupiter.api.Test;

import javax.swing.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

class AdminPanelTest {
    public final static Logger LOGGER = Logger.getLogger(AdminPanelTest.class.getName());

    public static void main(String[] args){
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    Map<String, String> envs = System.getenv();
                    String[] command;
                    if (UIUtil.isWindows) {
                        command = new String[] {"cmd.exe"};
                    } else {
                        command = new String[] {"/bin/sh", "--login"};
                        envs = new HashMap<>(System.getenv());
                        envs.put("TERM", "xterm-256color");
                    }
                    PtyProcess process =
                            new PtyProcessBuilder().setCommand(command).setEnvironment(envs).start();
                    TtyConnector connector = new PtyProcessTtyConnector(process, StandardCharsets.UTF_8);

                    JediTermWidget widget = new JediTermWidget(80, 24, new DefaultSettingsProvider());
                    widget.setTtyConnector(connector);
                    widget.start();

                    JDialog dialog = new JDialog();
                    dialog.add(widget);

                    dialog.addWindowListener(new WindowAdapter() {
                        @Override
                        public void windowClosing(WindowEvent e) {
                            if (widget.isSessionRunning()) {
                                widget.stop();
                                widget.close();
                            }
                            if (connector.isConnected()) {
                                connector.close();
                            }
                            if (process.isAlive()) {
                                process.destroyForcibly();
                            }
                            if (dialog.isShowing()) {
                                dialog.setVisible(false);
                            }
                        }
                    });

                    widget.addListener(new TerminalWidgetListener() {
                        @Override
                        public void allSessionsClosed(TerminalWidget terminalWidget) {
                            if (widget.isSessionRunning()) {
                                widget.stop();
                                widget.close();
                            }
                            if (connector.isConnected()) {
                                connector.close();
                            }
                            if (process.isAlive()) {
                                process.destroyForcibly();
                            }
                            if (dialog.isShowing()) {
                                dialog.setVisible(false);
                            }
                        }
                    });
                    dialog.setDefaultCloseOperation(MDialog.DISPOSE_ON_CLOSE);
                    dialog.setModal(false);
                    dialog.pack();
                    dialog.setVisible(true);
                } catch (Exception ex) {
                    LOGGER.log(Level.SEVERE, ex.getMessage(), ex);
                }
            }
        });
    }
}