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The BalanceLine4j Project is an implementation of the Balance Line Algorithm for Java applications. The Balance Line is an algorithm used to make Coordinated Processing and Sequential Updates, that improves performance and saves machine resources.
op4j is a developer happiness tool. Its aim is to reduce the amount of similar lines of code needed to do every day tasks in our code by providing an operator chaining tool to perform easy iterations on lists, OGNL evaluation, data type conversion...
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A library for cross-platform vector graphics cut and paste in java. It allows one to draw graphics which can the be pasted into word or openoffice. It handles Graphics2D, but not bitmap picture inclusion nor transparencies.
lwdba is a light weight database access library. A programmer can access database by SQL in a high level fashion. No complicated configuration is required. lwdba is simple, easy to learn, and easy to use. Connection pooling and SQL generator is supported
VMatrixLib is a little, handy, Java matrix library which implements a set of utility functions (such as calculus of the determinant of a matrix, calculus of the rank, inverse matrix, and many others..) that anyone who have to use matrices needs.
Joperties is an extension to the Properties class. It exists to solve a common problem with Properties (all Properties are Strings). Joperties allows you to set and get Java Objects without worrying about the transformation between String/Object.
Scalaffinity is a library providing a core of functionalities for any social networking web site extracting and leveraging collective intelligence. Scalaffinity is built using Scala, Spring, JPA+Hibernate(Search)+EHCache, JUnit+DBUnit, Maven...
A base set of libraries. Boilerplate type code and algorithms.
Currently skuttil (Java util & parsing code) and searKit (generic Java search framework).
Beet adds user behavior and performance tracking to a Spring-based Java app. HTTP requests, method calls, and SQL statements are tracked and associated to user and session. includes XML, binary XML, and JDBC loggers. See http://beet.sourceforge.net.
The JSparse Matrix Package, developed by Philipp Geigenmüller during an internship at the prudsys AG in Chemnitz, Germany, is an extension of the well-known Java Matrix Package (JAMA) and allows the use of sparse matrices and related algorithms.
JAva DIstributed Framework provides a secure and flexible Framework for distributed grid and volunteer computing applications (separate client & server Framework). For more informations take a look at the project page http://jadif.sourceforge.net
oxFlexFramework is a Java 100% open source project. It will aid developers to use Flex with a J2EE container. This is a simple and easy to use framework, and will provide a tools set to manage Data Access, Logging system and error handling, etc.