TL:DR; Barcode Reader for Java, a library to read barcode, supports Linear (1D), PDF417 (2D), Data Matrix, QRCode
Java Barcode Reader supports Codabar, Code 11, Code 39, Code 93, Code 128, EAN128, EAN8, EAN13, UPCA, UPCE, Interleaved 2 of 5, ITF14, Planet, Postnet, RM4SCC, PDF417 (2D), Data Matrix, QRCode
Pure Java Type 4 MS Excel JDBC(1.2, 2.0, 3.0) driver packages for Microsoft Excel version from 95, 97, 98, 2000, 2002, to 2004, supports transaction, embedded access, remote access, memory-only database, compressed database, and url database.
HXTT DBF contains the only type 4 JDBC(1.2, 2.0, 3.0) driver packages for Xbase database (dbase, Visual DBASE, SIx Driver, SoftC, Codebase, Clipper, Foxbase, Foxpro, VFP, xHarbour, Halcyon, Apollo, Goldmine, and BDE).
Mouse Gestures is an open source (LGPL) pure Java library for recognition and processing mouse gestures. With Mouse Gestures you have a fast way to execute commands without using the keyboard, menus or toolbars.