ftp://ftp.ecc.u-tokyo.ac.jp/mirror/archive.ubuntu.com/ubuntu/pool/main/libj/  direct

[DIR]libjakarta-poi-java/  direct  750+ twin directories
[DIR]libjpeg6b/  direct  660+ twin directories
[DIR]libjdepend-java/  direct  580+ twin directories
[DIR]libjaxp1.2-java/  direct  500+ twin directories
[DIR]libjessie-java/  direct  470+ twin directories
[DIR]libjaxp1.3-java/  direct  440+ twin directories
[DIR]libjcommon-java/  direct  750+ twin directories