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Log your miles and community runs: Java EE 7 Real World Experience

miles2run.org is an easy way to track your running activities and share with friends and families. Day-based or distance-based goals can be created and then tracked. It also allows ...
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Asynchronous SQL Execution with jOOQ and Java 8’s CompletableFuture

Reactive programming is the new buzzword, which essentially just means asynchronous programming or messaging. Fact is that functional syntax greatly helps with structuring asynchronous ...
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ChoiceFormat: Numeric Range Formatting

The Javadoc for the ChoiceFormat class states that ChoiceFormat “allows you to attach a format to a range of numbers” and is “generally used in a MessageFormat for ...
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Reduce Boilerplate Code in your Java applications with Project Lombok

One of the most frequently voiced criticisms of the Java programming language is the amount of Boilerplate Code it requires. This is especially true for simple classes that should do ...
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3 Essential Ways To Start Your JBoss BPM Process

This episode of tips and tricks will help you to understand the best way to initiate your process instances for your needs. Planning your projects might include process projects, but ...
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Common Mistakes Junior Developers Do When Writing Unit Tests

It’s been 10 years since I wrote my first unit test. Since then, I can’t remember how many thousands of unit tests I’ve written. To be honest I don’t make any distinction between ...
java-interview-questions-answers

JPA tutorial: Mapping Entities – Part 1

In this article I will discuss about the entity mapping procedure in JPA. As for my examples I will use the same schema that I used in one of my previous articles. In my two previous ...
java-interview-questions-answers

How to build and clear a reference data cache with singleton EJBs and MBeans

In one of my projects I had a requirement to load reference data from several sources in a Java EE 6 WebLogic environment, with EclipseLink as ORM framework. Since I couldn’t find ...
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How Nashorn Impacts API Evolution on a New Level

Following our previous article about how to use jOOQ with Java 8 and Nashorn, one of our users discovered a flaw in using the jOOQ API as discussed here on the user group. In essence, ...
java-interview-questions-answers

Using @ConfigurationProperties in Spring Boot

In my latest blog post I described shortly how one can configure mail in Spring Boot application. To inject properties into the configuration I used Spring’s @Value annotation. But ...
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