public void setRegions(java.util.Collection<Region> regions) {
        if (regions == null) {
            this.regions = null;
            return;
        }

        this.regions = new com.amazonaws.internal.SdkInternalList<Region>(regions);
    }
<p>
Information about the Regions.
</p>

@param regions
       Information about the Regions.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/DescribeRegionsResult.java