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"Some aspects of system implementation, such as logging, error handling, standards enforcement and feature variations are notoriously difficult to implement in a modular way. The result is that code is tangled across a system and leads to quality, productivity and maintenance problems. Aspect Oriented Software Development enables the clean modularization of these crosscutting concerns. The AspectJ Development Tools (AJDT) project provides Eclipse platform based tool support for AOSD with AspectJ. Our goal is to deliver a user experience that is consistent with the Java Development Tools (JDT) when working with AspectJ projects and resources. "

"Community Dashboard Framework (CDF) is a project that allows you to create friendly, powerful, fully featured dashboards on top of the Pentaho BI server. Former Pentaho dashboards had several drawbacks from a developer's point of view. The developing process was awkward, it required know-how of web technologies and programming languages, and basically it was time-consuming. CDF emerged as a need for a framework that overcame all those difficulties. The final result is a powerful framework featuring the following: . It is based on Open Source technologies. . It separates logic (JavaScript) of the presentation (HTML, CSS) . It features a life cycle with components interacting with each other . It uses AJAX . It is extensible, which gives the users a high level of customization: . Advanced users can extend the library of components. . They also can insert their own snippets of JavaScript and jQuery code. CDF can be used: . As part of a Pentaho solution. This is the most common scenario. . In a standalone mode as an alternative to the Pentaho User Console . Integrated with Portlets, PHP applications, intranet portals and even desktop applications. "

" OT/J: extreme modularity Whenever modularity gets tricky, OT/J provides just one more dimension for your architecture. With OT/J there's no excuse for any architectural workarounds. OT/J: extreme reuse With OT/J any existing piece of Java code is reusable. Existing components can be adapted to specific needs in full adherence to your projects requirements and without compromising a crisp modular architecture. The fabric for quality software OT/J is the fabric from which high quality software can be produced: flexible, durable, elegant. OT/J in the Wiki"

Setting up an infrastructure for Instant Messaging" article series. In my previous tutorials, I showed you how to setup the Openfire IM Server and how to configure the Spark client in order to connect to that server. In this tutorial, I will show you how to add XMPP messaging capabilities to your own application. I will use the Smack library, an Open Source XMPP (Jabber) client library for instant messaging and presence. Smack is a pure Java library and can be embedded into your applications to create anything from a full XMPP client to simple XMPP integrations.

""Coming from desktop application development, I have found the IT Mill Toolkit [Vaadin] to be a lot of help in the transition to web application development. With the toolkit, writing AJAX enabled web applications is as easy as writing Swing based GUI code. It hides so many frustrating details, and handles browser independence so I don't have to worry about it. Using the toolkit makes it quite easy for me to write sophisticated web applications." Bo Thorsen, Monty Program AB"

"a simple java reporting runtime, capable of running birt reports on google app engine (gae). "

"Support for mixed Scala/Java projects Thumb Support for mixed Scala/Java projects and any combination of Scala/Java project dependencies, allowing straightforward references from Scala to Java and vice versa. Editing Thumb A Scala editor with syntax highlighting, code completion, inferred type hovers, hyperlinking to definitions, error markers and more. Debugging Thumb Incremental compilation, application launching with integrated debugger, hyperlinking from stacktraces to Scala source, interactive console. Navigation Thumb Project and source navigation including Scala support in the Package explorer view with embedded outline, outline view, quick outline, open type, open type hierarchy."

"The goal of JavaMelody is to monitor Java or Java EE applications servers in QA and production environments. It is not a tool to simulate requests from users, it is a tool to measure and calculate statistics on real operation of an application depending on the usage of the application by users. JavaMelody is opensource (LGPL) and production ready: in production in an application of 25 person years. JavaMelody is easy to integrate in most applications and is lightweight (no profiling and no database). JavaMelody is mainly based on statistics of requests and on evolution charts. "

Sample of using Hibernate Annotations by reducing XML configuration files thus making it simpler to define required metadata directly into our Java code. When using annotations, we no longer need the additional mapping file (*.hbm.xml). The metadata for the ORM is specified in the individual classes.

"sbt is a simple build tool for Scala projects that aims to do the basics well. It requires Java 1.5 or later. "

UNICASE is a CASE-Tool integrating models from the different development acitivities, such as requirements, use cases, UML models, schedules, bug and feature models into a unified model. This unified model is highly traceable by design. The UNICASE client allows to view and edit these models in a textual, tabular and diagram visualization. The models are stored and versioned on a server comparable to svn but customized for models. Client and server are easily extensible to support integrating new models into the unified model. UNICASE is based on the Eclipse platform including EMF and GMF. It can also be used as a framework to build modeling applications that reuse its repository and visualization capabilities. The project is open-source and released under the Eclipse Public License v 1.0 (EPL). It builds on our experience from the Sysiphus project in building a CASE tool.

Before you read, please look at this video, showing the core features of ECP. The EMF Client Platform is a framework to build EMF-based client applications. The goal is to provide a one-click application based on a given EMF model. Besides the EMF model no additional components have to be developed or generated. Therefore ECP provides a standard solution including the most common features needed for EMF-based client applications. This application can then be customized step by step. This can be done by extending ECP or replacing single components completly.

What is EMFStore? Why should I use EMFStore? Getting Started with the EMFStore Get in contact with the developers Architecture Downloads Documentation and Tutorials Reporting Bugs and Feature Requests

A set of functions and predicates (as defined by Google Collections / Guava libraries) along with a set of utility methods to help navigating and editing Eclipse EMF models. EMFPath depends on Google Guava. Guava is available as OSGi bundles from the guava-bundle project.

"Java Authentication and Authorization Service, or JAAS, pronounced "Jazz", is a Java security framework for user-centric security to augment the Java code-based security. Since Java Runtime Environment 1.4 JAAS has been integrated with the JRE - previously JAAS was supplied as an extension library by Sun. JAAS's main goal is to separate the concerns of user authentication so that they may be managed independently."

"If you didn't know already, Eclipse allows you to define custom templates for commonly used code snippets. Its a very neat feature for those of us who are memory challenged or don't like typing things twice! I think that Apache Camel users could really benefit from having predefined templates for doing Camel routing. I also hear a lot of requests like "I have this Java DSL route, how do I do this in the Spring XML DSL?" so having both Java and XML templates for the same thing is essential."

Eclipse Rich Client Platform has come a looong way since it was first introduced (and used in Eclipse IDE). The new Eclipse RAP (Rich Application Platform) is also becoming more and more attractive for deploying existing or new Eclipse RCP applications to the web. One of my the projects I'm working on is developed on top of Eclipse RCP. It uses additional plugins such as EMF (Eclipse Modeling Framework) including EMF Editor UI, Teneo (EMF Persistence for Relational Databases), and Hibernate. After some work, I managed to run the whole application on both Eclipse RCP (desktop) and Eclipse RAP (web-based). See the screenshots for proof. Thanks to the recently released EMF Support for RAP I don't have to let go any of the nice EMF generated editor UIs for the web-based RAP version. What's amazing is how little the work I have to do to port the RCP app to RAP. The changes I needed to do is not changing code, but juggling dependencies to plugins and/or packages. Also creating a few platform-specific plugins (different based on whether I deploy on RCP or RAP).

"This page will be used to show solutions to common problems related to Apache Jackrabbit and the JCR API. These examples shouldn't be considered Best Practices - general error checking and exception handling have been omitted to keep the example code simple. "

This page contains the latest compiled builds of Pentaho Data Integration (Kettle) community edition.  The builds are based on source code downloaded daily from SVN. Why download these snapshot builds? You want the latest version - to get the latest features in PDI. You want a more stable version - PDI point releases (e.g. 4.0.1) can include important bug fixes - see the PDI JIRA system for a full list of known issues. You need a bug fixed - You're struggling with a critical bug which has been fixed in a more recent version. To save time - You haven't got the time and/or inclination to learn about how to download PDI from SVN and build your own version.