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Rapid Cloud Development with Spring Roo – Part 1: Google App Engine (GAE)

Spring Roo is a tool to offer rapid application development on the Java platform. I already explained when to use it: http://www.kai-waehner.de/blog/2011/04/05/when-to-use-spring-roo. ...
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Rapid Cloud Development with Spring Roo – Part 2: VMware Cloud Foundry

Spring Roo is a tool to offer rapid application development on the Java platform. I already explained when to use it: http://www.kai-waehner.de/blog/2011/04/05/when-to-use-spring-roo. ...
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Spring & JSF integration: Converters

When working with any web framework, you invariable run into the need to convert data input by the user from a String to some other type. Both Spring and JSF have converter strategies ...
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JUnit’s Built-in Hamcrest Core Matcher Support

In the post Improving On assertEquals with JUnit and Hamcrest, I briefly discussed Hamcrest “core” matchers being “baked in” with modern versions of JUnit. In ...
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Calling private Java methods publicly?

We Java developers, known 4 access modifiers in Java: private, protected, public, and package. Well, except for the private, the last three, can be called from outside of the class ...
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Using Servlet 3.0 Async Features in Grails 2.0

I was talking to someone last week about the new support for Servlet 3.0 async features in Grails 2 and realized I didn’t know that much about what was available. So I thought I’d ...
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Using Servlet 3.0 Async Features in Grails 2.0

I was talking to someone last week about the new support for Servlet 3.0 async features in Grails 2 and realized I didn’t know that much about what was available. So I thought I’d ...
spring-interview-questions-answers

JAXB Custom Binding – Java.util.Date / Spring 3 Serialization

JaxB can handle Java.util.Date serialization, but it expects the following format: “yyyy-MM-ddTHH:mm:ss“. What if you need to format the date object in another format? I had the ...
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Solr: Creating a spellchecker

In a previous post I talked about how the Solr Spellchecker works and then I showed you some test results of its performance. Now we are going to see another aproach to spellchecking. ...
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Registering entity types with OpenJPA programmatically

I’ve just started work on an OpenJPA objectstore for Isis. In the normal scheme of things, one would register the entity types within the persistence.xml file. However, Isis is a ...
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