Thread: Getting "javax.net.ssl.SSLException" while writing SSL socket program

Hello, I am a begginer in programimg and I programmed the chat with SSL sockets. I created the certificate via tutorial on this website: Installing and Configuring SSL Support . I use IDE NetBeans and I would like to know the place/folder where the certificate has to be saved. Could you tell me in detail the procedure in Netbeans.
But momentarily it doesn't work because of the error: javax.net.ssl.SSLException: No available certificate or key corresponds to the SSL cipher suites which are enabled.
This is the code of server:

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLServerSocket;
import javax.net.ssl.SSLServerSocketFactory;
import javax.net.ssl.SSLSocket;
 
/**
 *
 * @author Lolek
 */
public class Main {
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        try {
            int port = 5000;
            SSLServerSocketFactory serverSocketFactory = null;
            SSLServerSocket serverSocket = null;
            SSLSocket socket = null;
 
            serverSocketFactory = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
            serverSocket = (SSLServerSocket) serverSocketFactory.createServerSocket(port);
 
 
            while (true) {
                socket = (SSLSocket) serverSocket.accept();
                ChatHandler handler = new ChatHandler(socket);
                handler.start();
            }
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
 
 
 
    }
}
class ChatHandler extends Thread
{
     static ArrayList handlers = new ArrayList(10);
     private SSLSocket socket;
     private BufferedReader read;
     private BufferedWriter write;
 
     public ChatHandler(SSLSocket socket)
     {
        try {
            this.socket = socket;
            this.read = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            this.write = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
        } catch (IOException ex) {
            Logger.getLogger(ChatHandler.class.getName()).log(Level.SEVERE, null, ex);
        }
     }
 
 
     public void run(){
     String line=null;
	synchronized(handlers) {
	    handlers.add(this);
	}
	try {
 
	    while(!(line = read.readLine()).equalsIgnoreCase("/q")) {            
                for(int i = 0; i < handlers.size(); i++) {	
			synchronized(handlers) {
		            ChatHandler handler = (ChatHandler)handlers.get(i);                            
                            handler.write.write(line);
                            handler.write.newLine();
                            handler.write.flush();                            
                    }
		}
	    }
 
	} catch(IOException ioe) {
	    ioe.printStackTrace();
	} finally {
	    try {
		read.close();
		write.close();
		socket.close();
	    } catch(IOException ioe) {
	    } finally {
		synchronized(handlers) {
		    handlers.remove(this);
		}
	    }
	}
    }
}