public java.util.Map<String, Double> getAdditionalVersionWeights() {
        if (additionalVersionWeights == null) {
            additionalVersionWeights = new com.amazonaws.internal.SdkInternalMap<String, Double>();
        }
        return additionalVersionWeights;
    }
public java . util . Map < String , Double > getAdditionalVersionWeights ( ) { if ( additionalVersionWeights == null ) { additionalVersionWeights = new com . amazonaws . internal . SdkInternalMap < String , Double > ( ) ; } return additionalVersionWeights ; }
<p>
The name of the second alias, and the percentage of traffic that's routed to it.
</p>

@return The name of the second alias, and the percentage of traffic that's routed to it.