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

        this.grantArns = new java.util.ArrayList<String>(grantArns);
    }
<p>
Amazon Resource Names (ARNs) of the grants.
</p>

@param grantArns
       Amazon Resource Names (ARNs) of the grants.
aws-java-sdk-licensemanager/src/main/java/com/amazonaws/services/licensemanager/model/ListReceivedGrantsRequest.java