public java.util.List<VpcCidrBlockAssociation> getCidrBlockAssociationSet() {
        if (cidrBlockAssociationSet == null) {
            cidrBlockAssociationSet = new com.amazonaws.internal.SdkInternalList<VpcCidrBlockAssociation>();
        }
        return cidrBlockAssociationSet;
    }
<p>
Information about the IPv4 CIDR blocks associated with the VPC.
</p>

@return Information about the IPv4 CIDR blocks associated with the VPC.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/Vpc.java