public void setResponseTimeHistogram(java.util.Collection<HistogramEntry> responseTimeHistogram) {
        if (responseTimeHistogram == null) {
            this.responseTimeHistogram = null;
            return;
        }

        this.responseTimeHistogram = new java.util.ArrayList<HistogramEntry>(responseTimeHistogram);
    }
<p>
A histogram that maps the spread of client response times on an edge. Only populated for synchronous edges.
</p>

@param responseTimeHistogram
       A histogram that maps the spread of client response times on an edge. Only populated for synchronous
       edges.
aws-java-sdk-xray/src/main/java/com/amazonaws/services/xray/model/Edge.java