Convert CIDR notation text list to a list of IP addresses in Java

This tool should take CIDR netmask (e.g. [login to view URL]), from a text file and lists all the IP addresses in that netblock -- it should also be written in Java. If the line does not equal CIDR notation -- normal ipv4 address -- then append to file then skip conversion and proceed to the next line. If it does equal CIDR notation I want it to append all the IP addresses in that netblock to the end of the text file. Here is a sample of what it should be able to handle -- full list attached: [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL]