Ant
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Source for build.xml Source for the ftp download client https://www.codejava.net/java-se/ftp/java-ftp-list-files-and-directories-example https://commons.apache.org/proper/commons-net/apidocs/org/apache/commons/net/ftp/FTPClient.html https://www.codejava.net/java-se/ftp/java-ftp-example-get-details-of-a-file-or-directory-on-server https://www.geeksforgeeks.org/date-gettime-method-in-java-with-examples/ (Convert calendar to date) java unix time http://zetcode.com/java/unixtime/ https://mkyong.com/java/how-to-get-the-file-last-modified-date-in-java/# https://javatutorialhq.com/java/io/file-class-tutorial/setlastmodified-method-example/ https://javarevisited.blogspot.com/2016/10/how-to-get-last-modified-date-of-file-and-directory-in-java.html https://currentmillis.com/tutorials/system-currentTimeMillis.html <---------------- good https://stackoverflow.com/questions/3757763/integer-number-too-large-error-message-for-600851475143 https://stackoverflow.com/questions/6834037/initialize-a-long-in-java <---------------- brilliant
