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Custom Reason Phrase in HTTP status error message response with JAX-RS (Jersey)

In some of my recent work I got the request to produce a custom Reason Phrase in the  HTTP status response delivered to one of our REST API consuming clients when an error occurs. ...
java-interview-questions-answers

User sessions, Data controls and AM pooling

Recently I was asked an interesting question about application module pooling. As we know AM pool contains application module instances referenced by user sessions, which allows a session ...
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Spring Rest API with Swagger – Creating documentation

The real key to making your REST API easy to use is good documentation. But even if your documentation is done well, you need to set your company processes right to publish it correctly ...
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Clean Unit Test Patterns – Presentation Slides

I was given the opportunity to talk at the GDG DevFestKarlsruhe 2014 conference about ‘Clean Unit Test Patterns’. Thanks to the organizers for inviting me and thanks to all people ...
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Apache Commons IO Tutorial: A beginner’s guide

Apache Commons IO is a Java library created and maintained by the Apache Foundation. It provides a multitude of classes that enable developers to do common tasks easily and with much ...
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Chronicle Map and Yahoo Cloud Service Benchmark

Overview Yahoo Cloud Service Benchmark is a reasonably widely used benchmarking tool for testing key value stores for a significant number of key e.g 100 million, and a modest number ...
spring-interview-questions-answers

Spring Boot Actuator: custom endpoint with MVC layer on top of it

Spring Boot Actuator endpoints allow you to monitor and interact with your application. Spring Boot includes a number of built-in endpoints and you can also add your own.   Adding ...
java-interview-questions-answers

Securing WebSockets using Username/Password and Servlet Security

RFC 6455 provide a complete list of security considerations for WebSockets. Some of them are baked in the protocol itself, and others need more explanation on how they can be achieved ...
java-interview-questions-answers

Java EE 7 / JAX-RS 2.0: Simple REST API Authentication & Authorization with Custom HTTP Header

REST has made a lot of conveniences when it comes to implementing web services with the already available HTTP protocol at its disposal. By just firing GET, POST and other HTTP methods ...
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Quo Vadis JUnit

For me JUnit is the most important library of the Java universe. But I think a new version of it is overdue. With it’s approach of having a method definition as a test definition ...
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