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zip - java library for zip64

What is currently the best library to do zip64 with in Java? I need to zip and unzip files / directories larger than 4 GB.

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?

At the moment I am using http://sourceforge.net/projects/zip64file/ . 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.

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Also Apache Commons Compress supports Zip64 format.


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