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Defend your Application with Hystrix

In previous post http://www.javacodegeeks.com/2014/07/rxjava-java8-java-ee-7-arquillian-bliss.html we talked about microservices and how to orchestrate them using Reactive Extensions ...
java-interview-questions-answers

Developing a top-down Web Service project

This is a sample chapter taken from the Advanced JAX-WS Web Services book edited by Alessio Soldano. The bottom-up approach for creating a Web Service endpoint has been introduced in ...
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Some more unit test tips

In my previous post I showed some tips on unit testing JavaBeans. In this blog entry I will give two more tips on unit testing some fairly common Java code, namely utility classes and ...
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Custom JSR 303 Bean Validation constraints for the JSR 310 New Date/Time API

With JSR 310 Java 8 finally brought us a decent date and time API. For those of you that are still using Java 7 – like I am at my current project – there is an excellent backport ...
java-interview-questions-answers

2 Ways of Passing Properties / Parameters in Java EE 7 Batch

When it comes to the Java EE 7 Batch Processing facility, there are 2 ways in passing properties / parameters to the chunks and batchlets. This quick guide shows you the 2 ways, which ...
spring-interview-questions-answers

Customizing HttpMessageConverters with Spring Boot and Spring MVC

Exposing a REST based endpoint for a Spring Boot application or for that matter a straight Spring MVC application is straightforward, the following is a controller exposing an endpoint ...
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Using Infinispan as a persistency solution

Cross-posted from https://vaadin.com/blog/-/blogs/using-infinispan-as-a-persistency-solution. Thanks Fredrik and Matti for your permission! Various RDBMSs are the de-facto standard ...
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Using Gradle to Build & Apply AST Transformations

Recently, I wanted to both build and apply local ast transformations in a Gradle project. While I could find several examples of how to write transformations, I couldn’t find ...
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JUnit Rules

Introduction In this post I would like to show an example of how to use JUnit Rule to make testing easier. Recently I inherited a rather complex system, which not everything is tested. ...
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Runtime Class Loading to Support a Changing API

I maintain an IntelliJ plugin that improves the experience of writing Spock specifications. A challenge of this project is supporting multiple & incompatible IntelliJ API versions ...
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