· Wojciech Krzywiec

2024

Start learning JVM internals with Grafana dashboard

13 January 2024·19 mins

java jvm performance garbage-collector cpu memory class-loader monitoring prometheus grafana micrometer

Explore a Grafana dashboard that can serve as your initial entry point into understanding JVM internals, like garbage collection, class loading and more.

2023

Prepare Test Data Quicker with Test Data Builder!

8 October 2023·11 mins

java tests data craftsmanship database hibernate jdbc quality test-data-builder

Discover the benefits of using Test Data Builder to improve test code readability

2021

Java Series: Flatmap

12 December 2021·6 mins

java stream data java-series data-processing optional basic

How and when to user flatmap function in Java stream

How to set up monitoring tools for JVM

30 September 2021·16 mins

java monitoring performance java-flight-recorder prometheus grafana micrometer

Learn how to write tests in Spock

Automating quality checks for Kubernetes YAMLs

2 September 2021·13 mins

kubernetes helm cloud devops github github-actions datree gcp

Build CI pipline to verify Kubernetes YAMLs

Step-by-step guide how integrate Keycloak with Angular application

22 March 2021·18 mins

oauth2 authorization authentication security keycloak jwt angular ui javascript

Integrate Angular application with Keycloak

Implementing OAuth 2.0 access token validation with Spring Security

15 March 2021·33 mins

oauth2 authorization authentication security keycloak jwt java spring-boot

Validate JWT in Spring Boot application

Create and configure Keycloak OAuth 2.0 authorization server

8 March 2021·11 mins

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Spin up Keycloak with Docker

Introduction to OAuth 2.0

1 March 2021·18 mins

oauth2 authorization authentication security jwt

Basic concepts and flows of OAuth 2.0

2020

Make Testing Fun (Again) With Spock Framework

23 October 2020·15 mins

java tests unit-tests groovy spock

Learn how to write tests in Spock