Decrypting strings from node.js in Java?

I have the following simple encryption code running in node.js:

var crypto = require('crypto');

var encKey = "FOO"; // Not the real key. Assume it works though.

var encrypt = function(str) {
  var cipher = crypto.createCipher('aes-256-cbc', encKey);
  var crypted = cipher.update(str, 'utf-8', 'hex');
  crypted += cipher.final('hex');
  return crypted;
};

Which I can also decrypt as below:

var crypto = require('crypto');

var encKey = "FOO"; // Not the real key. Assume it works though.

var decrypt = function(str) {
  var decipher = crypto.createDecipher('aes-256-cbc', encKey);
  var decrypted = decipher.update(str, 'hex', 'utf-8');
  decrypted += decipher.final('utf-8');
  return decrypted;
};

This all works fine. Strings are encrypting and decrypting as expected. But now I am faced with task of decrypting encrypted strings from this node.js code, in Java. And that is where things are going wrong and I am not sure why.

For decryption, My Java code looks like this:

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import java.security.MessageDigest;
import java.util.Arrays;

private static final String encKey = "FOO";
private static SecretKeySpec secretKey;
private static byte[] key;

public static String decrypt(String str) throws Exception {
  String hexDecodedStr = new String(Hex.decodeHex(str.toCharArray()));
  setKey(encKey);
  Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
  cipher.init(Cipher.DECRYPT_MODE, secretKey);
  return new String(cipher.doFinal(hexDecodedStr.getBytes()));
}

private static void setKey(String myKey) throws Exception {
  MessageDigest sha = null;
  try {
    key = myKey.getBytes("UTF-8");
    sha = MessageDigest.getInstance("SHA-1");
    key = sha.digest(key);
    key = Arrays.copyOf(key, 16); 
    secretKey = new SecretKeySpec(key, "AES");
  } 
  catch (Exception e) {
    throw e;
  } 
}

And it doesn't work. It seems like no matter what I try, I end up with some exception on the cipher.doFinal() call, or the String I get back is totally wrong. I know the node.js code is using aes-256-cbc, while the Java code is using AES/ECB/PKCS5Padding instead of AES/CBC/PKCS5Padding, but when I tried to use AES/CBC/PKCS5Padding, it was requiring an InitVector which I didn't have in node.js so I was unsure of how to proceed. Is node making an InitVector under the hood if not provided with one? Am I missing something totally obvious?