Review

Uses AES with default mode and padding. Since these values might chance per crypto provider this is considered a bad practice.

• missing/condition/value_or_state

encryption/RSA.java

encrypt(String, PublicKey)

class RSA {
    /**
     * Encrypt the plain text using public key.
     *
     * @param text : original plain text
     * @param key :The public key
     * @return Encrypted text
     * @throws java.lang.Exception
     */
    public static String encrypt(String text, PublicKey key) {
        byte[] cipherText = null;
        try {
            // get an RSA cipher object and print the provider
            final Cipher cipher = Cipher.getInstance(ALGORITHM);
            // encrypt the plain text using the public key
            cipher.init(Cipher.ENCRYPT_MODE, key);
            cipherText = cipher.doFinal(text.getBytes("UTF8"));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return new sun.misc.BASE64Encoder().encode(cipherText);
    }

}