[Java] How to open the KeyStore.

OpenKeyStore.java

/*
 * The following snippet opens an external keystore file and returns it to be used to retrieve
 * certificates and keys. This is an important step, once that the certificate and the private
 * key contained in the keystore will be used to sign the requests.
 *
 * Gists provided for illustrative purposes only. Developers can use these as a support tool
 * but the Office of the Revenue Commissioners (Revenue) does not provide any warranty with 
 * these gists. 
 */
public KeyStore openKeyStore(String filePath, String encodedPassword) throws KeyStoreException, IOException, CertificateException, NoSuchAlgorithmException {
    KeyStore keyStore = KeyStore.getInstance("PKCS12");
    keyStore.load(
        new FileInputStream(filePath),
        encodedPassword.toCharArray()
    );
    return keystore;
}

returned keystore variable name should be camel case "keyStore"