Unusual Bad Padding Exception

Question

I am writing a class to encrypt licencing information onto a text file in Base64 encoding. This write aspect works fine but the reading the licence back throw a Bad Padding Exception. (error and code below) Any assistance will be much appreciated
javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.SunJCE_h.b(DashoA6275)
at com.sun.crypto.provider.SunJCE_h.b(DashoA6275)
at com.sun.crypto.provider.AESCipher.engineDoFinal
(DashoA6275)
at javax.crypto.Cipher.doFinal(DashoA6275)
at Encryptor.encrypt(Encryptor.java:117)
at Encryptor.loadAllEncryptedLayerLicences
(Encryptor.java:158)
at Encryptor.main(Encryptor.java:183)
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
SecretKey skey = kgen.generateKey();
byte[] raw = skey.getEncoded();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES");
//encrypt
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
byte[] encrypted = cipher.doFinal(value.getBytes());
//CONVERT TO BASE64 Encoding
String s = new sun.misc.BASE64Encoder().encode(encrypted);
//write the encrypted data to the file
fos = new FileOutputStream("C:\\aes\\output.properties");
new PrintStream(fos).println("layerhandle\t"+s);
fos.flush();
//fos.close();
//decrypt
byte[] buf = new sun.misc.BASE64Decoder().decodeBuffer(value);
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
//read from file and decrypt the values
byte[] unecrypted = cipher.doFinal(buf);
String word = new String(unecrypted);

Answer 1

String s = new
sun.misc.BASE64Encoder().encode(encrypted);
//write the encrypted data to the file
fos = new
FileOutputStream("C:\\aes\\output.properties");
new PrintStream(fos).println("layerhandle\t"+s);
fos.flush();
//fos.close();This looks suspicious. You should close the PrintStream and not just flush 'fos'. Closing the PrintSteam will close 'fos'. This failure to close the print stream could be the cause your problem.
>
>
//decrypt
byte[] buf = new
sun.misc.BASE64Decoder().decodeBuffer(value);If there is a problem with decrypt then it may be because you have not read the 'value' or the 'key' properly.