### Question:
AMKeyProvider implements KeyProvider { @Override public SecretKey getSecretKey(String certAlias) { try { Key key = ks.getKey(certAlias, privateKeyPass.toCharArray()); if (key instanceof SecretKey) { return (SecretKey) key; } logger.error("Expected a key of type javax.crypto.SecretKey but got " + key.getClass().getName()); } catch (KeyStoreException | NoSuchAlgorithmException | UnrecoverableKeyException e) { logger.error("Unable to get the secret key for certificate alias " + certAlias, e); } return null; } AMKeyProvider();  AMKeyProvider(
            String keyStoreFilePropName, String keyStorePassFilePropName,
            String keyStoreTypePropName, String privateKeyPassFilePropName);  AMKeyProvider(boolean alreadyResolved,
            String keyStoreFile, String keyStorePass,
            String keyStoreType, String privateKeyPass); static String decodePassword(String password); void setLogger(Debug logger); void setKey(String storepass, String keypass); java.security.cert.X509Certificate getX509Certificate(
            String certAlias); java.security.PublicKey getPublicKey(String keyAlias); java.security.PrivateKey getPrivateKey(String certAlias); @Override SecretKey getSecretKey(String certAlias); PrivateKey getPrivateKey(String certAlias, String encryptedKeyPass); KeyPair getKeyPair(String certAlias); String getCertificateAlias(Certificate cert); char[] getKeystorePass(); String getPrivateKeyPass(); String getKeystoreType(); String getKeystoreFilePath(); KeyStore getKeyStore(); void setCertificateEntry(String certAlias, Certificate cert); Certificate getCertificate(String certAlias); void store(); Certificate getCertificate(
            java.security.PublicKey publicKey); @Override boolean containsKey(String alias);  }### Answer:
@Test public void getSecretKeyUsingDefaultPassword() { SecretKey key = amKeyProvider.getSecretKey(SECRET_KEY_ALIAS); Assert.assertNotNull(key); }