public Future<String> getValue() {
            return value;
        }
Returns the value of the secret at the time it was last retrieved.
The actual value of the secret may have changed.

@return
    A Future which will eventually complete with the value of the
    secret at the time it was last retrieved. If no such secret
    exists, the Future will be completed with null. If an error
    occurs which prevents retrieval of the secret, that error will
    be exposed through an ExecutionException when an attempt is made
    to retrieve the value from the Future.
extensions/guacamole-vault/modules/guacamole-vault-base/src/main/java/org/apache/guacamole/vault/secret/CachedVaultSecretService.java