Bio

Jakub is a software developer for whom coding is a way of life as well as a hobby.

He is focused on continuously improving software delivery processes by introducing new technologies and refining Lean methodologies.

For over 12 years of his professional career, he worked as a software developer, architect, team leader, and manager. He gained experience working on both sides of the delivery process, as a vendor and as a client. Today, he is speaker, trainer, and CEO of the online technical assessment platform, Devskiller.com.

After hours active open-source contributor:
He is also involved in Java community, where he is:

Comments

firstfly said…
Thanks for giving an Excellent Blog, it's very useful information to us, keep on it doing like this, I eagerly waiting for your updates, Thank you So much...


Best Aviation Academy in Chennai

Best Air hostess Training in Chennai

Pilot Training in Chennai

Airport Ground Handling Training in Chennai

Airport Flight Dispatcher Trainee in Chennai

RTR- Aero Training in Chennai

For more... facebook


May 2, 2019 at 2:09 PM
Thambidurai said…
It was a informative post thanks for sharing
Aviation Academy in Chennai
July 9, 2019 at 8:01 AM
Reshma said…
This comment has been removed by the author.
July 23, 2019 at 7:41 AM
Reshma said…
This comment has been removed by the author.
July 23, 2019 at 7:44 AM
Radley Co Tad said…
Great Article. Thank you for sharing! Really an awesome post for every one.

IEEE Final Year projects Project Centers in Chennai are consistently sought after. Final Year Students Projects take a shot at them to improve their aptitudes, while specialists like the enjoyment in interfering with innovation. For experts, it's an alternate ball game through and through. Smaller than expected IEEE Final Year project centers ground for all fragments of CSE & IT engineers hoping to assemble. Final Year Project Domains for IT It gives you tips and rules that is progressively critical to consider while choosing any final year project point.

Spring Framework has already made serious inroads as an integrated technology stack for building user-facing applications. Spring Framework Corporate TRaining the authors explore the idea of using Java in Big Data platforms.
Specifically, Spring Framework provides various tasks are geared around preparing data for further analysis and visualization. Spring Training in Chennai
December 14, 2019 at 11:32 AM
Richa Sharma said…
Felt good to know about the talent of such a great personality. We can now Hire Bootstrap Developer for our projects with a great reasonable prices. Yorvitech Solutions pvt. ltd provides all developing and designing solutions we need, having a rich experience of more than 9 years.
January 21, 2020 at 8:04 PM
Pamela Weber said…
Great Article! I got too much information from this post. Thanks for sharing such a helpful article. Click here for more information about it
November 21, 2020 at 10:54 AM
Mega said…
Thanks for your excellent article. It is so good to read a new article.
seo interview questions
android interview questions
February 26, 2021 at 12:17 PM
Post a Comment

Popular posts from this blog

Understanding Spring Web Initialization

Few years ago majority of us were used to write XML config files everywhere, to setup even simple Java EE application. Today using Java or Groovy to configure projects is becoming preferred way - you just need to take a look at Gradle or functionalities introduced in further versions of the Spring Framework to gen up on this. Now I'll deal with configuring Spring contexts for web application. Java EE provides ServletContainerInitializer interface, which allows libraries to be notified of a web application startup. Since Spring 3.1 we have SpringServletContainerInitializer class which handles WebApplicationInitializer by instantiating all found classes implementing this interface, sorting them basing on @Order annotation (non-annotated classes gets the highest possible order, so they are processed at the end) and invoking onStartup() method.
Read more

Understanding the first level JPA cache

I can bet that every Java developer at least heard about L1 (aka EntityManager or Session) cache. But is your level of understanding it good enough? If you're not sure, consider going through this post. At first, we need to know what the persistence context is. Following EntityManager JavaDoc  we know, that: "A persistence context is a set of entity instances in which for any persistent entity identity there is a unique entity instance. Within the persistence context, the entity instances and their lifecycle are managed."  In fact, the first level cache is the same as the  persistence context . That means operations such as persist() , merge() , remove()  are changing only internal collections in the context and are not synchronized to the underlying database. What is the mosts important here is what happens when you invoke the  clear()  method. It clears the L1 cache. But we know L1 == persistence context. Does it mean clearing L1 removes all entities? In fact yes -
Read more

Including Java agent in standalone Spring Boot application

Recently at DevSKiller.com  we've decided to move majority of our stuff to simple containers. It was pretty easy due to use of Spring Boot uber-jars, but the problem was in  NewRelic  agents which should have to be included separately. That caused uncomfortable situation so we decided to solve it by including NewRelic agent into our uber-jar applications. If you also want to simplify your life please follow provided instructions :) At first we have to add proper dependency into our pom.xml descriptor: <dependency> <groupiId>com.newrelic.agent.java<<groupId> <artifactId>newrelic-agent</artifactId> <version>3.12.1</version> <scope>provided</scope> </dependency>
Read more