Java Security

a very good morning to all cryptography experts

sir,
i am getting problem while decryption with blowfish algorthim

my code as follows:

package com.ack.security.jce;

import java.lang.String.*;
import java.security.*;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.*;
import java.io.*;

public class BlowfishCipher {
public static void main(String[] args) throws Exception {
System.out.println("enter ur key");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
String key=in.readLine();
String plainText="surendra";
KeyGenerator keygenerator = KeyGenerator.getInstance("Blowfish");
keygenerator.init(448);
// create a key
SecretKey secretkey = keygenerator.generateKey();
byte[] raw=key.getBytes();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "Blowfish");
// create a cipher based upon Blowfish
Cipher cipher = Cipher.getInstance("Blowfish");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
// decrypt message
byte[] decrypted = cipher.doFinal(plainText.getBytes());
System.out.println(new String(decrypted));
System.exit(0);
}
}

OUTPUT:

enter ur key: jan
Exception in thread "main" javax.crypto.BadPaddingException:Given final block not properly padded
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.BlofishCipher.engineDoFinal(DashoA13*..)
at com.sun.crypto.doFinal(DashoA13*..)
at com.ack.security.jce.BlofishCipher.main(BlowfishCipher.java:27)


the above exceptions coming

plss help me as soon as possible
thanking u sir