Triple DES encryption string generates "\n"

Make it Simple :

While encrypting a string, it generates '\n' at end of the string.

This is how I'm doing encryption

public static String encrypt(String plainText) throws Exception {
        byte[] tdesKeyData = Consts.getSecretKey().getBytes();
        byte[] myIV = Consts.getInitializationVector().getBytes();
        SecretKeySpec myKey = new SecretKeySpec(tdesKeyData, "DES");
        IvParameterSpec ivspec = new IvParameterSpec(myIV);
        Cipher cipher = Cipher.getInstance("DESede/CBC/PKCS7Padding");
        cipher.init(Cipher.ENCRYPT_MODE, myKey, ivspec);

        byte[] plainTextBytes = plainText.getBytes("UTF-8");
        byte[] buf = cipher.doFinal(plainTextBytes);
        byte[] base64Bytes = Base64.encode(buf, Base64.DEFAULT);
        String base64EncryptedString = new String(base64Bytes);
        return base64EncryptedString;
    }

Please, somebody, guide me, what am I doing wrong here? Thanks in Advance.