public String getNextToken() {
        return this.nextToken;
    }
<p>
The <code>nextToken</code> value returned from a previous paginated <code>DescribeRepositories</code> request
where <code>maxResults</code> was used and the results exceeded the value of that parameter. Pagination continues
from the end of the previous results that returned the <code>nextToken</code> value. This value is
<code>null</code> when there are no more results to return. This option cannot be used when you specify
repositories with <code>repositoryNames</code>.
</p>
<note>
<p>
This token should be treated as an opaque identifier that is only used to retrieve the next items in a list and
not for other programmatic purposes.
</p>
</note>

@return The <code>nextToken</code> value returned from a previous paginated <code>DescribeRepositories</code>
        request where <code>maxResults</code> was used and the results exceeded the value of that parameter.
        Pagination continues from the end of the previous results that returned the <code>nextToken</code> value.
        This value is <code>null</code> when there are no more results to return. This option cannot be used when
        you specify repositories with <code>repositoryNames</code>.</p> <note>
        <p>
        This token should be treated as an opaque identifier that is only used to retrieve the next items in a
        list and not for other programmatic purposes.
        </p>
aws-java-sdk-ecr/src/main/java/com/amazonaws/services/ecr/model/DescribeRepositoriesRequest.java