public DestinationSummary withUnhealthySince(java.util.Date unhealthySince) {
        setUnhealthySince(unhealthySince);
        return this;
    }
<p>
The timestamp when the status last changed to <code>UNHEALHY</code>.
</p>

@param unhealthySince
       The timestamp when the status last changed to <code>UNHEALHY</code>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-customerprofiles/src/main/java/com/amazonaws/services/customerprofiles/model/DestinationSummary.java