Java - Ejecutar main desde un boton en JFrame

package p_movi;

// Librerias SSH

import com.jcraft.jsch.*;

import java.awt.*;

import javax.swing.*;

// Librerias PING

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.util.ArrayList;

import javax.swing.JOptionPane;

public class P_MOVI{

// Variables SSH    

public static int j, s2;

public static String ip, val;

public static int ipa = 0;

public static int ipna = 0;

public static String[] IP_NA = new String[1000];

// Variables Ping

public static int i;

public static String ip_on ;

public static String s = null;

public static int ipnv = 0;

public static String[] IP_NV = new String[1000];

// Variable general

public static String[] IP_RE = new String[1000];

public static int re;

  public static void main(String[] arg)throws Exception {

    //ciclo para validar conexion IP

    for (i=20; i<100;i++){

        //Lista de comandos  

        ArrayList<String> commandList = new ArrayList<String>();

        // Envia comando ping

        commandList.add("ping");

        // la ip asignada    

        commandList.add("172.17.1."+i);

        //se guarda en variable

        ip_on="172.17.1."+i;

        //Llamar linea de comandos 

        P_MOVI.commands(commandList);

        }

    // ciclo para validar Raspberry Activos  

    for(j=20;j<100;j++) {

        try{

        JSch jsch=new JSch();

        String host=null;

        if(arg.length>0){

            host=arg[0];

        }else{

            host=("cmrr"+"@172.17.1."+j);

            ip="172.17.1."+j;

        }

        String user=host.substring(0, host.indexOf('@'));

        host=host.substring(host.indexOf('@')+1);

        Session session=jsch.getSession(user, host, 22);

        String passwd = "**********";

        session.setPassword(passwd);

        UserInfo ui = new MyUserInfo(){

        public void showMessage(String message){

          JOptionPane.showMessageDialog(null, message);

        }

       };

      session.setUserInfo(ui);

      session.connect(30000);   // making a connection with timeout.

      Channel channel=session.openChannel("shell");

      channel.setInputStream(System.in);

      channel.setOutputStream(System.out);

      channel.connect(3*1000);

    }

    catch(Exception e){

     // System.out.println(e);

        val= e.toString();

        s2 = val.length();

     System.out.println(ip);

     // System.out.println(s);

      if (s2==87){

          IP_NA[ipna]=ip;

                ipna++;

      }

    }

  }

        System.out.println("Analisis terminado, generar reporte");

        System.out.println("____________IP No VALIDAS: _____________");

        for(int w=0;w<=ipnv;w++){

        if(w%4==0){

        System.out.println(IP_NV[w]);

        }

        }

        System.out.println("______________IPs NO ACTIVAS: _____________");

        for(int w=0;w<=ipna;w++){

        System.out.println(IP_NA[w]);

        }

        for(int x = 0; x<IP_NA.length;x++){

            for(int y = 0; y<IP_NV.length;y++){

                if(IP_NV[y] == null ? IP_NA[x] == null : IP_NV[y].equals(IP_NA[x])){

                }else{

                    int r=0;

                    IP_RE[r]=IP_NA[x];

                    r++;

                    re=r;

                    }

            }//ciere for y

        }//cierre for x

        System.out.println("_____________REPORTE___________");

            for(int w=0;w<=re;w++){

                System.out.println(IP_RE[w]);

            }

    }

  public static abstract class MyUserInfo

                          implements UserInfo, UIKeyboardInteractive{

    public String getPassword(){ return null; }

    public boolean promptYesNo(String str){ return false; }

    public String getPassphrase(){ return null; }

    public boolean promptPassphrase(String message){ return false; }

    public boolean promptPassword(String message){ return false; }

    public void showMessage(String message){ }

    public String[] promptKeyboardInteractive(String destination,

                                              String name,

                                              String instruction,

                                              String[] prompt,

                                              boolean[] echo){

      return null;

       }

    }

static void commands(ArrayList<String> commandList)

                                           throws Exception

    {

        ProcessBuilder build = new ProcessBuilder(commandList);

        Process process = build.start();

        BufferedReader input = new BufferedReader(new InputStreamReader

                                   (process.getInputStream()));

        BufferedReader Error = new BufferedReader(new InputStreamReader

                                   (process.getErrorStream()));

        while((s = input.readLine()) != null)

        {

            System.out.println(s);

            int length = s.length();

            if (length==58){

                IP_NV[ipnv]=ip_on;

                ipnv++;

            }

        }

        while((s = Error.readLine()) != null)

        {

         System.out.println("Existe un Error");

         System.out.println(s);

        }

    }

}