Java Open Source Projects Directory

...dedicated into Java open source projects

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General Purpose Libraries

jodd

Jodd is a generic purpose open-source Java library. It helps in development of Java applications, both stand-alone and server-side. You may think of Jodd as swiss army knife for Java: small, sharp and with plenty handy gadgets included. Jodd contains many useful and ready to use features: it provides Java beans manipulation, loads beans with ease from various sources, simplifies JDBC connectivity and code, profiles sql queries, manages date and time, manipulates and format Strings, searches files on disk, helps with handling servlet requests. Additionally, Jodd contains small, yet useful mvc2 JSP-based framework. And there is more inside...

 

jgap

JGAP (pronounced "jay-gap") is a genetic algorithms component written in the form of a Java package. It provides basic genetic mechanisms that can be easily used to apply evolutionary principles to problem solutions. The ground is laid for introducing Genetic Programming to JGAP in the near future! JGAP has been written to be very easy to use "out of the box," while also designed to be highly modular so that more adventurous users can easily plug-in custom genetic operators and other sub-components.

 

shotoku

Shotoku is designed to provide easy access to content repositories in which you can store data, bind metadata, revision content, and provide branching and merging strategies. This means Shotoku can interface with repositories such as the Java Content Repository (JSR 170: JCR), Subversion, and file-system based repository implementations that aim to support basic revisioning mechanisms.

 

retrotranslator

Retrotranslator is a Java bytecode transformer that translates Java classes compiled with JDK 5.0 into classes that can be run on JVM 1.4. Supported features: generics, annotations, reflection on generics and annotations, enums, autoboxing, for-each loop, varargs, static import, concurrency utilities, collections framework enhancements.

 

apache-poi

The POI project is the master project for developing pure Java ports of file formats based on Microsoft's OLE 2 Compound Document Format. OLE 2 Compound Document Format is used by Microsoft Office Documents, as well as by programs using MFC property sets to serialize their document objects. There following are ports, packages or components contained in the POI project:

 * POIFS is the set of APIs for reading and writing OLE 2 Compound Document Formats.
 * HSSF is the set of APIs for reading and writing Microsoft Excel 97(-XP) spreadsheets.
 * HWPF is the set of APIs for reading and writing Microsoft Word 97(-XP) documents.
 * HSLF is the set of APIs for reading and writing Microsoft PowerPoint 97(-XP) documents.
 * HPSF is the set of APIs for reading property sets.

 

josql

JoSQL provides SQL capabilities for querying, ordering, and grouping of collections of Java objects. It allows a SQL statement to be applied to the collection of objects and the matching set returned, ordered and grouped. It should be used when a RDBMS is either too heavyweight or too impractical.

 

j-interop-open-source,-non-native-java-dcom-access-bridge

j-Interop implements DCOM wire protocol (MSRPC) to enable development of Pure Bi-Directional, Non-Native Java applications which can interoperate with any COM component.The implementation itself is purely in Java and does not use JNI to provide native access,thus being truly platform independent. It has full support for COM automation and supports callback from COM Servers (event handling). It also supports complete Create-Retrieve-Update-Delete operations on Windows registry in a non-native way as well. It has been tested on Windows XP/2K/2K3 and Fedora 5.

 

jsci-a-science-api-for-java

This is a free set of JavaTM packages. The aim is to encapsulate scientific methods/principles in the most natural way possible. As such they should greatly aid the development of scientific based software.

 


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