javaxcryptoIllegalBlockSizeException Input length must be multiple of 8 when decrypting with padded cipher

This error occurs when trying to decrypt data using a padded cipher (such as AES/CBC/PKCS5Padding) and the input data length is not a multiple of the block size (8 bytes for AES). This means that the data may have been corrupted or tampered with during transmission, or that the encryption process was not completed correctly.

To fix this error, make sure that the input data length is a multiple of the block size by adding padding to the data before encryption. If the data has already been encrypted, check that the encrypted data is not corrupted and that the decryption process is being performed correctly.