Open Source Java Data Management Systems

Apache RocketMQ is a distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability. Messaging patterns including publish/subscribe, request/reply and streaming. Financial grade transactional message. Built-in fault tolerance and high availability configuration options base on DLedger. A variety of cross language clients, such as Java, C/C++, Python, Go. Pluggable transport protocols, such as TCP, SSL, AIO. Built-in message tracing capability, also support opentracing. Versatile big-data and streaming ecosytem integration. Message retroactivity by time or offset. Reliable FIFO and strict ordered messaging in the same queue. Efficient pull and push consumption model. Million-level message accumulation capacity in a single queue. Multiple messaging protocols like JMS and OpenMessaging. Flexible distributed scale-out deployment architecture. Lightning-fast batch message exchange system.

Application sharing software that allows individual windows to be replicated to other computers. Remote collaboration tool based on a modified VNC protocol. Its advantage is to keep some things, like email, private, while sharing other desktop apps.

MailArchiva is a powerful, full featured email archiving (email archiver) and compliance solution for mail systems such as Microsoft Exchange. It stores all incoming, outgoing and internal emails for long term storage. A web based user interface is avail

N-Browse is a client-server package for interactive visualization of network data with heterogeneous types of links, intended for ease of use and designed using a generic database schema for data integration and visualization.

Netsim is a mobile ad hoc network simulator targeted at large heterogeneous node configurations. It is written in Java and is easily extensible through its modular concept.

BuddySpace is an enhanced Jabber client providing secure presence management, web services and instant messaging. It extends the 'buddy list' concept with enhanced and customisable visualisation of presence (incl. maps, logical layouts).

@rbre uses X3D to let people create, visualize, browse and share genealogical data, by using 2D individual icons assembled in 3D family trees. @rbre will include P2P functions for sharing.

A collection of Java programs using JavaMail API to help automating the process of sending mails.

Cube Platform is a decentralized grid computing system that uses P2P Pastry protocol for communication between nodes. It's a big data storage written in Java.

JMicroPolygon is a project to provide polygon drawing and filling facilities for J2ME (MIDP 1.0 and 2.0) without relying on extension APIs.

Java GUI Framework seeks to simplify the development procedures of Java GUI ,which can directly collect data for the object model from input interface and seamlessly link up ORM technology.

Marid is a cross-platform data acquisition and visualization software intended to build complex and hierarchical data acquisition systems. The base concepts of its architecture include: * Graphical deploy configuration builders * Powerful Groovy scripting language * Embedded database ( H2 , HSQLDB) to store data * Cross-platform design (write once, run anywhere) * Embedded GUI-configurable binary/ascii device protocol parser/generator * Deploy manager to deploy firmwares to remote controllers/servers via secure channel * Embedded web-sever * Dynamically linked plugins available from Nexus Repository * Remote monitoring tools * Modular Marid IDE to manage them all

NetVis 2D (NV2D) is a social network visualization application that can be embedded in a browser or run as a standalone applcation.

O3-XDS stands for "Open Three (O3) - Cross Enterprise Document Sharing". O3-XDS is an Open Source and IHE compliant XDS Registry and Repository.

Data synchronization utility for moving data between different servers and different databases.

Apache Pulsar is a cloud-native, distributed messaging and streaming platform originally created at Yahoo! and now a top-level Apache Software Foundation project. Easy to deploy, lightweight compute process, developer-friendly APIs, no need to run your own stream processing engine. Run in production at Yahoo! scale for over 5 years, with millions of messages per second across millions of topics. Expand capacity seamlessly to hundreds of nodes. Low publish latency (< 5ms) at scale with strong durability guarantees. Configurable replication between data centers across multiple geographic regions. Built from the ground up as a multi-tenant system. Supports isolation, authentication, authorization and quotas. Persistent message storage based on Apache BookKeeper. IO-level isolation between write and read operations. Flexible messaging models with high-level APIs for Java, Go, Python, C++, Node.js, WebSocket and C#.

Azureus Plug-In that allocates the ip adresses of the peers to the country and the city they belong to and visualize that data on a world map or in statistics. This product includes GeoLite data created by MaxMind, available from http://www.maxmind.com/.

idyuts is \"I Dare You to Use This Shell\"; a pre-hibernate approach to replacing an ORM written with jython functors into a pure-Java language command pattern. The \"pipeline codegen artifacts\" are simple IoC templates, and trivial to adapt

Centre is a synthetic trajectory generator environment that aim to generate semantic-based trajectory datasets usable for spatio-temporal data-mining algorithms in testing and validation process.

The VilAug framework for visual linguistics! This gadget contains an IconNet with icons like WordNet and an IconMessenger as instant messenger. A new ontology is used, grammars for visual languages designed. A language with signs? Create it with VilAug.

W.H.A.T. is an analytic tool for Wikipedia with two main functionalities: an article network and extensive statistics. It contains a visualization of the article networks and a powerful interface to analyze the behavior of authors.

A program aimed to allow users to record the results of a 3D survey of a site; to verify the measurements are internally consistant and provide a visual representation of the site.

businetz is a web-based application which enables users of the popular business network XING to create a sophisticated visualization of their personal network.

Analysis and interactive visualization of a web-based community. Supports different focuses on the given social network to present community groups to the user. Also specific information of each member is provided.

This project aims at visualizing the email flow of one or several users. We provide users with an anonymization interface (to filter and anonymize email and contacts) and a set of visualizations including contact statistics, email flow and history.