I have no knowledge about j2ee security but I am giving it a second look now. I have been studying this for a while now but cant get my head to understand all the concepts. I have been involved in web projects that runs on the company's local Intranet only. As I have checked, there's no security constraints appended to it. ... more »

The Java EE 6 Tutorial: Basic Concepts, Fourth Edition, is a task-oriented, example-driven guide to developing enterprise applications for the Java Platform, Enterprise Edition 6 (Java EE 6). Written by members of the Java EE 6 documentation team at Oracle, this book provides new and intermediate Java programmers with a deep understanding of the platform. ... more »

In a previous post, I described how to implement Messaging in Java EE 5 using annotation. This post is an extension of that post to describe how to implement Messaging in Java EE 5 using a deployment descriptor. To implement this, you can use the same client that was described in the other post. The only change needed is in the MDB part. Here's how to implement a Message Driven bean using the deployment descriptor.... more »

Acegi Security uses the SecurityContextHolder object to store details of the current security context of the application. The SecurityContext holds the details of the authenticated principal in an Authentication object. By default the SecurityContextHolder uses a ThreadLocal to store these details, so that they will be available all methods in the current thread of execution.In order to obtain the Principal, you would use the following line... more »

While the next version of WAS (v7.0) with Java EE 5, is yet to be released, you can now test some of the features such as EJB 3.0 with WebSphere software early programs. The new features are available as feature packs for the current WebSphere Application Server (v6.1).... more »

Being a big fan of the EJB 3.0 specification, I read this new EJB 3.1 New Features article published by Serverside right away. Clearly, the current EJB spec is much simpler to use and maintain than previous generations. Building upon that logic, the upcoming EJB 3.1 specification looks even better.... more »

Java EE 5 provides all the features you need to build a robust enterprise application right in an EJB 3.0 container, but incorporating the relative strengths of Spring and Hibernate can further improve the productivity and quality of your application.... more »

Momentum for organizations to adopt Java Platform, Enterprise Edition 5 (Java EE 5) is steadily increasing as the platform's container support, developer tools, educational resources, and developer-community experience all improve. Get a high-level view of the new productivity features and API enhancements in Java EE 5 and work through a Web service example that demonstrates its simplified development models.... more »

Web 2.0 applications developed using standard Java Platform, Enterprise Edition 5 (Java EE)-based approaches face serious performance and scalability problems. The reason is that many principles that underlie the Java EE platform's design especially, the use of synchronous APIs don't apply to the requirements of Web 2.0 solutions. This article explains the disparity between the Java EE and Web 2.0 approaches, explores the benefits of asynchronous designs, and evaluates some solutions for developing asynchronous Web applications with the Java platform.... more »

NetBeans IDE 6.0, the Visual Web tools, and Java Persistence API (JPA) give you greater flexibility for writing database-dependent applications.... more »