Compression
File Format APIs for Java
Open Source Java Libraries for Compression Files
Create and Extract compression file formats like ZIP, TAR, RAR & GZIP via Java
Compression File Format APIs for Java Include
Jarchivelib
Java archiving and compression library that automatically generates zip, tar.gz and tar archived source code.
zt-zip
Open Source Java Archiving Library that enables software developers to compress, extract & compare large ZIP archives.