public Long getNumberOfArchives() {
        return this.numberOfArchives;
    }
<p>
The number of archives in the vault as of the last inventory date. This field will return <code>null</code> if an
inventory has not yet run on the vault, for example if you just created the vault.
</p>

@return The number of archives in the vault as of the last inventory date. This field will return
        <code>null</code> if an inventory has not yet run on the vault, for example if you just created the
        vault.
aws-java-sdk-glacier/src/main/java/com/amazonaws/services/glacier/model/DescribeVaultResult.java