Java Security

Hi all,

I need help in converting a keystore from jceks to jks. I wrote a program that opens both keystore files, reads the keys from the jceks keystore and writes to jks keystore. The initial jks keystore is empty. The program executes fine, but when I use the keytool to read the new keystore I get the following:

c:\keytool -list -keystore jkskeystore.dat
Enter keystore password: something

Keystore type: jks
Keystore provider: SUN

Your keystore contains 1 entry

some.key, Mar 12, 2003, keyEntry,
keytool error: java.lang.ArrayIndexOutOfBoundsException: 0

Any ideas on this? Are there tools out there that will do the conversion?

Any help is apreciated!!!

This is the program:

import java.io.*;
import java.security.*;

import javax.crypto.*;

public class KeyStoreTypeTransfer{

private static final String OLD_KEYSTORE = "keystore.dat";
private static final String NEW_KEYSTORE = "jkskeystore.dat";

private static final String OLD_PASSWORD = "something";
private static final String NEW_PASSWORD = "something";

private static final String OLD_ALIAS = "some.key";
private static final String NEW_ALIAS = "some.key";

public static void main(String[] args){

try {
// get the original keystore

KeyStore keyStore = KeyStore.getInstance("JCEKS");
KeyStore keyStoreJKS = KeyStore.getInstance("JKS","SUN");

InputStream inputStream = new FileInputStream(OLD_KEYSTORE);
InputStream inputStreamJKS = new FileInputStream(NEW_KEYSTORE);

keyStore.load(inputStream, OLD_PASSWORD.toCharArray());
keyStoreJKS.load(inputStreamJKS, NEW_PASSWORD.toCharArray());

SecretKey secretKey = (SecretKey) keyStore.getKey(OLD_ALIAS, OLD_PASSWORD.toCharArray());
System.out.println(secretKey.getFormat() + " " + secretKey.getAlgorithm());

keyStoreJKS.setKeyEntry(NEW_ALIAS, secretKey, NEW_PASSWORD.toCharArray(), null);


keyStoreJKS.store(new FileOutputStream(NEW_KEYSTORE), NEW_PASSWORD.toCharArray());
}
catch (Exception e){
e.printStackTrace();
}

return;
}

}