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Stop vibe-debugging.
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AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
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.
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.
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.
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JACo MP3 Player is a cross platform java mp3 player. Features: very low CPU usage (~2%), incredible small library (~90KB), doesn't need JMF, easy to integrate in any application, easy to integrate in any web page (as applet).
A base set of libraries. Boilerplate type code and algorithms.
Currently skuttil (Java util & parsing code) and searKit (generic Java search framework).
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
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.
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.
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.
This set of projects provides shared tools and utility classes for others Java projects. The dutilities project is composed by sub-projects that provides more specific tools: dtools contains utility classes, dswing contains UI components...
CouchDB4CF is a set of ColdFusion facade objects that encapsulate the easy to use CouchDB4J project written by Marcus R. Breese (http://github.com/mbreese/couchdb4j). This project's purpose is to simplify access to CouchDB databases.