public java.util.List<UpdateInfoEntry> getUpdateActivities() {
        if (updateActivities == null) {
            updateActivities = new com.amazonaws.internal.SdkInternalList<UpdateInfoEntry>();
        }
        return updateActivities;
    }
<p>
The list of update activities on a directory for the requested update type.
</p>

@return The list of update activities on a directory for the requested update type.
aws-java-sdk-directory/src/main/java/com/amazonaws/services/directory/model/DescribeUpdateDirectoryResult.java