ReCaptcha login form with Spring Security

Today I’ll show you how to customize Spring Security to create a login form with ReCaptcha verification

The captcha is based on Google ReCaptcha plugin. More info on ReCaptcha here

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Design Pattern: the Asynchronous Dispatcher

Today we’ll revisit a common design pattern, the Observer, and one of its derivative for multi-threaded processing: the Asynchronous Dispatcher.

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