Thread to shut the tomcat and restart

Question

THIS IS WHAT I AM TRYING TO DO BUT AFTER STARTING THE TOMCAT MY THREAD IS NOT WAKING UP
HELP PLEASE
class Restarts extends Thread{
     String fileStart="",fileRestart="";     
     String line,line1;
     public Restarts(String start1, String restart1){
          fileStart=start1;
          fileRestart=restart1;
          start();
     public void run(){
          try{
               Process p = Runtime.getRuntime().exec(fileStart);
               BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
               while ((line = input.readLine()) != null) {
               System.out.println(line);
               input.close();     
               sleep(20000);
               Process p1 = Runtime.getRuntime().exec(fileRestart);
               BufferedReader input1 = new BufferedReader(new InputStreamReader(p1.getInputStream()));
               while ((line1 = input1.readLine()) != null) {
               System.out.println(line1);
               input1.close();
          catch(Exception e){
               e.printStackTrace();
class Restart
     public static void main(String a[]){
          Restarts start = new Restarts("startup.bat","shutdown.bat");
}

Answer 1

Quit Mail. Force quit if necessary.
Back up all data. That means you know you can restore the Mail database, no matter what happens.
Triple-click the line below on this page to select it:
~/Library/Mail/V2/MailData/Envelope Index
Copy the selected text to the Clipboard (command-C). In the Finder, select
Go ▹ Go to Folder
from the menu bar. Paste into the box that opens (command-V), then press return.
A Finder window will open with a file selected. Move the selected file to the Desktop, leaving the window open. Other files in the folder may have names that begin with "Envelope Index". Move those files, if any, to the Trash.
Log out and log back in. Relaunch Mail. It should prompt you to re-import your messages. You may get a warning that the index is corrupt and that Mail has to quit. Click OK.
Test. If Mail now works as expected, you can delete the file you moved to the Desktop. Otherwise, post your results.