public java.util.List<PrivateIpAddressSpecification> getPrivateIpAddresses() {
        if (privateIpAddresses == null) {
            privateIpAddresses = new com.amazonaws.internal.SdkInternalList<PrivateIpAddressSpecification>();
        }
        return privateIpAddresses;
    }
<p>
The private IPv4 addresses.
</p>
<p>
You can't specify private IPv4 addresses if you've specified one of the following: a count of private IPv4
addresses, specific IPv4 prefixes, or a count of IPv4 prefixes.
</p>

@return The private IPv4 addresses.</p>
        <p>
        You can't specify private IPv4 addresses if you've specified one of the following: a count of private
        IPv4 addresses, specific IPv4 prefixes, or a count of IPv4 prefixes.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/CreateNetworkInterfaceRequest.java