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ADF: Using UI Categories with Dynamic form

JDev 11g R2 has new interesting feature “UI Categories”. It allows us to group VO’s attributes declaratively at the view object definition level. For example, “UI ...
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Beyond JUnit – Testing Frameworks alternatives

JUnit is the defacto Java unit testing framework, but there’s a couple of new (and not so new) frameworks out there for web development that might be of interest. Questions you ...
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5 Ways to Contribute to GlassFish without being a Programming Genius

Andy Lester posted the original guide about 14 Ways to Contribute to Open Source without Being a Programming Genius or a Rock Star back in March and I really liked the idea. And this ...
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Exception Handling Guidelines & Best Practices

Let’s review some basic exception design guidelines, summarized from Object Design: Roles, Responsibilities, and Collaborations (Rebecca Wirfs-Brock and Alan McKean, Addison-Wesley, ...
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Spring Remoting Support with Http Invoker

Spring HTTP Invoker is an important solution for Java-to-Java Remoting. This technology uses the standard Java serialization mechanism to expose services through HTTP and can be thought ...
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The all-new Play Module Repository

Back in November, I spoke to Nicolas Leroux of the Play framework about creating a module repository. He agreed it would be a good idea, but lack of time has prevented me from starting ...
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Protect a REST service using HMAC (Play 2.0)

We have HTTPS, what more do we need? When you talk about security for REST based APIs, people often point to HTTPS. With HTTPS you can easily protect your services from prying eyes ...
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The Strategy Pattern

In a recent blog on I received a comment from Wojciech Soczy?ski about how the “strategy” pattern can be used to enforce the Single Responsibility Principle (SRP) when using Tell ...
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RabbitMQ: Scheduled Message Delivery

Earlier this month I gave a presentation at ComoRichWeb on RabbitMQ and one question from an attendee was “Is it possible to publish a message to be consumed at a later date?” I ...
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5 useful methods JSF developers should know

The aim of this post is a summary about some handy methods for JSF developers they can use in their day-to-day work. An utility class is a good place to put all methods together. I ...
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