Mustangproject is a tool to write, validate and parse Factur-X/ZUGFeRD and (CII)XRechnung e-invoices. It is a (permissive) open source cross platform command line tool and a Java library. The command line tool e.g. allows to extract and combine PDF and XML from/to Factur-X as well as validate e-invoices, convert XML to HTML or migrate from ZUGFeRD v1 to v2. The library additionally allows to generate the XML to be embedded either by implementing interfaces or actively creating objects.
Hipparchus is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language.
JPPF enables applications with large processing power requirements to be run on any number of computers, in order to dramatically reduce their processing time. This is done by splitting an application into smaller parts that can be executed simultaneously on different machines.
The Java backend for the filemanager of corefive (http://github.com/simogeo/Filemanager ). It's a bridge between the filemanager and a storage backend and works like a transparent virtual file system or a proxy. C5Connector.Java includes a default implementation to access the (server side) local filesystem.
A Java based tool for accessing Bugzilla instances. B4J offers to write own reports based on those bug records that one want to incorporate.
JSch is a pure Java implementation of SSH2. It allows you to connect to an sshd server and use port forwarding, X11 forwarding, file transfer, etc. You can integrate its functionality into your own Java programs.
RsLibs is a collection of Java interfaces, classes and static utilities that solve common application developer tasks.
A library for parsing mathematical expressions. Unlike similar projects, JBEE is able to parse numbers formated according to the user's locale and uses BigDecimal internally instead of double for arbitrary precision.
The CSV/Excel Utility Package allows to easily integrate CSV and Excel functionality into a Java application, just by using Iterator-like classes for reading, and PrintStream-like classes for writing. The CSV tools can be configured to use different column delimiter and separator characters in case they need to be adopted to some other versions of CSV. The default configuration conforms to the Excel style of CSV.
Java Swing Component that shows words in different colors and font sizes based on weights.