public void setPillars(java.util.Collection<String> pillars) {
        if (pillars == null) {
            this.pillars = null;
            return;
        }

        this.pillars = new java.util.ArrayList<String>(pillars);
    }
<p>
The Pillars that the Recommendation is optimizing
</p>

@param pillars
       The Pillars that the Recommendation is optimizing
@see RecommendationPillar
aws-java-sdk-trustedadvisor/src/main/java/com/amazonaws/services/trustedadvisor/model/OrganizationRecommendationSummary.java