Java Cipher Class Encryption/Decription

[mahsaee]

I have a java class for enc/dec in DESEDE;
for some cipher texts it results in this exception:
Input length must be multiple of 8 when decrypting with padded cipher
I have not written this code myself I have found it in a thread in this website;
could anyone please help me come up with the reason why this happens?
for example the following cipher text is the result of encrypting a random 24 character key
in similar C# class:
gd95f%2finjchs6O9BVdnEgU8L
but decrypting this in java faces the stated exception, since the decryption in C# is fine;
thanks in advance;

ps.to be precise, we have our encryption done in C# and decryption in java;
the classes are tested and work fine together except for some texts which seem that their length is a problem;

private static String key = "4d89g13j4j91j27c582ji693";
private static String initializationVector = "abcdefgh";

public static String encryptText(String plainText) throws Exception
{
    //----  Use specified 3DES key and IV from other source -------------------------
      byte[] plaintext = plainText.getBytes();
      byte[] tdesKeyData = key.getBytes();

      byte[] myIV = initializationVector.getBytes(); 


      Cipher c3des = Cipher.getInstance("DESede/CBC/PKCS5Padding");
      SecretKeySpec    myKey = new SecretKeySpec(tdesKeyData, "DESede");
      IvParameterSpec ivspec = new IvParameterSpec(myIV);

      c3des.init(Cipher.ENCRYPT_MODE, myKey, ivspec);
      byte[] cipherText = c3des.doFinal(plaintext);

//    return Base64Coder.encodeString(new String(cipherText));
            BASE64Encoder enc = new BASE64Encoder();
            String retCrypt = enc.encodeBuffer(cipherText);
                       System.out.println("retCrypt    "  + retCrypt);             
            return URLEncoder.encode(retCrypt);          
    }

public static String decryptText(String cipherText)throws Exception
{    

    byte[] encData = new sun.misc.BASE64Decoder().decodeBuffer(cipherText);
    Cipher decipher = Cipher.getInstance("DESede/CBC/PKCS5Padding");
    byte[] tdesKeyData = key.getBytes();
    SecretKeySpec myKey = new SecretKeySpec(tdesKeyData, "DESede");
    IvParameterSpec ivspec = new IvParameterSpec(initializationVector.getBytes());
    decipher.init(Cipher.DECRYPT_MODE, myKey, ivspec);
    byte[] plainText = decipher.doFinal(encData);
    return new String(plainText);
}