So, what are JKS and PFX files and why would we want to convert PFX to JKS?

If you're working in Java then the JKS (Java Key Store) is a logically expected place to store private keys. Java applications typically expect to get the keys from JKS, since Java offers ways for easy JKS management. JKS is not easily accessible from outside Java, though.

PFX (PKCS#12) files, on the other hand, are not language-dependent way to store encrypted private keys and certificates, and it has been around long enough so it's widely supported.

In this quick tutorial, we'll create interceptor in Spring Boot. In Spring, interceptors are used in the following situations:

• before the request reaches the controller
• right before the response is sent to the client

Interceptors are useful when you need some sort of request pre-processing or response post-processing, for example - you can add missing field or header to request, or add a header to the response. Another use is request filtering - in case you want to process only requests that contain certain elements or values.

 This article will introduce you to the Spring scheduled tasks, show you how to easily set up scheduled tasks in Spring using @Scheduled annotation. We'll also discuss how to configure scheduled tasks in Spring so that they fit your specific needs since they offer a lot of flexibility. We'll go through the following topics:

1. What is a scheduler and how to use @Scheduled annotation in Spring?

2. How to execute methods in sequence with a fixed delay between executions - fixedDelay parameter?

3. How to execute methods on fixed-rate - fixedRate parameter?

4. How to set up cron scheduler and use timezone if needed?

5. How to parametrize the scheduler?

 The main goal of this guide is to show you how to create your firs Spring Boot REST API implementing the Service Layer and Repository pattern.

We'll go through the creation of the following components:

• setting up project
• one simple entity
• controller
• service
• repository

The Serverless framework has become very popular because it's easy to set up and use and it makes the whole AWS Serverless deploying process much easier. It also allows you to test some of AWS features before deployment. This tutorial will guide you through the creation of one simple REST service with AWS Lambda behind the curtains, its testing and its deployment to AWS. We'll also cover the set up of basic dependencies needed for serverless to work. 

If you're here because you want to start with Selenium, you're in the right place.

This quick start tutorial is intended for complete beginners (no prior Java knowledge is needed), so we will cover project creation, manually add libraries and write code for one simple test scenario that will be executed in Google Chrome.

You'll also learn what are some basic elements of Selenium. If you prefer watching over reading when you study, scroll to the end of this tutorial, we also prepared a quick video guide. So, keep in mind this is plain, simple example without any additional frameworks and optimizations. After you catch up with these basic things, you can optimize, mavenize, etc your project as you wish.