title: java library for zip64
body: <p>What is currently the best library to do zip64 with in Java? I need to zip and unzip files / directories larger than 4 GB. </p>
  
  <p>I read that Java 7 has support for zip64. But I guess if I develop for Java 7 this only works if all the computers on which the application will be installed have Java 7 JRE? Is this correct? </p>
  
  <p>At the moment I am using <a href="http://sourceforge.net/projects/zip64file/" rel="noreferrer">http://sourceforge.net/projects/zip64file/</a> . But here I was wondering if this is still the best choice? I would like to have a library that supports zipping of directories out of the box. Now I have to do the traversing of the directory structure myself. </p>