Other ways to check for used port

Question

Hi,
I have this code to check for used port :
try {
ServerSocket s = ServerSocketFactory.getDefault().createServerSocket(port);
s.close();
} catch (Throwable e1) {
InstallLogger.instance().info("Unable to open port " + port + ".\n" + e1.getMessage());
return false;
The code works fine. But in Windows 2003, it behaves differently. It does not detect that a "tomcat shutdown port" is already in use. Any other used port throws an exception, which is what is expected. Any idea will be appreciated. Thanks!

Answer 1

below code loops till it gets a open port
     private int port = 2562;
     public void checkPort() {
          try {
               ServerSocket sock = new ServerSocket(port);
               sock.close();
               System.out.println(port + " port is open");
          }catch(BindException b) {
               System.out.println(port + " port is not available");
               port++;
               checkPort();//will check till it gets a open port.
          catch (IOException e) {
               //do other validations
     }