@Override
    public Key engineGetKey(String keyId, char[] password)
        throws NoSuchAlgorithmException, UnrecoverableKeyException {
      Key key = super.engineGetKey(keyId, password);
      if (key == null) {
        return null;
      }
      throw new UnrecoverableKeyException("Failed to obtain information about key");
    }
A partial fake implementation of KeyStoreSpi where engineGetKey always throws an exception.

<p>This is added because of b/151893419.
java_src/src/main/java/com/google/crypto/tink/integration/android/internal/FakeAndroidKeystoreProvider.java