Package list: page 289
- jaztool
- jazz2-native
- jbbp
- jbibtex
- jbig2dec
- jbig2enc
- jbigkit
- jblas
- jbofihe
- jboss-bridger
- jboss-classfilewriter
- jboss-jdeparser2
- jboss-logging
- jboss-logging-tools
- jboss-logmanager
- jboss-modules
- jboss-threads
- jboss-vfs
- jboss-xnio
- jbossas4
- jc
- jcabi-aspects
- jcabi-log
- jcal
- jcc
- jcdf
- jcgui
- jcharts
- jcifs
- jclassinfo
- jclic
- jclicmoodle
- jcm
- jcodings
- jcommander
- jcommon-serializer
- jconvolver
- jcsp
- jctools
- jd
- jdcal
- jde
- jdeb
- jdependency
- jdim
- jdk1.1
- jdom
- jdresolve
- jdupes
- jebl2
- jed
- jed-extra
- jed-ja
- jedit
- jedstate
- jeepney
- jeepyb
- jeex
- jekyll
- jekyll-theme-minima