error in using package SubnetUtils

[Diwakar Jha]

Hello,

I'm migrating from Flink 1.8 to Flink 1.11 on an EMR cluster and I get
this error message for using package subnetUtils. Its working fine for
Flink 1.8.

 [javac] import
org.apache.flink.fs.s3presto.shaded.com.facebook.presto.hadoop.$internal.org.apache.commons.net.util.SubnetUtils;
    [javac]
                                           ^
    [javac] /workplace/.../utility/IPAddressHelper.java:31: error: package
SubnetUtils does not exist
    [javac]     public static final HashMap<String,
List<SubnetUtils.SubnetInfo>>        IPS_MATCH = new HashMap<String,
List<SubnetUtils.SubnetInfo>>() {{
    [javac]                                                         ^
    [javac] 2 errors

Anyone know about this error. Any pointers?

Thanks.