Home of The JavaSpecialists' Newsletter

Helping Make Better Java and Making Java Better...

From expert level specialists articles, to inhouse concurrency courses to emergency consulting - if it's at the bleeding edge of Java - you're in the right place.


Java Champion, author of the Java Specialists Newsletter, conference speaking regular... About Heinz


The JavaSpecialist Newsletter: Celebrating 17 years of publication, enjoyed in over 145 countries by 70,000 of the world's top Java programmers and spanning over 250 specialist Java articles.


  • "Each time I read the The JavaSpecialists' Newsletter I feel like a Greek Philosopher : 'I know that I know nothing' #Socrates." Antonio Goncalves

  • "Amazing technical knowledge and a deep care about people. When you read each post, you know you are getting the best information, that really help you in your project and your career." Bruno Souza

  • "If you think you know Java, visit the JavaSpecialists’ Newsletter and find out how much you don’t know. Tons of valuable info!" Frank Greco

  • "Insane! I got mentioned in Dr. @heinzkabutz 's JSN! I've been reading it for 10yrs at least ! (HT @BruceEckel)" Josh Long (@starbuxman)

Java Training

We deliver relevant courses, by top Java developers to produce more resourceful and efficient programmers within their organisations.

Java Consulting

Nobody ever wants to call a Java performance consultant, but with first-hand experience repairing and improving commercial Java applications - JavaSpecialists are a good place to start...

Threading Emergency?

If your system is down, we will review it for 15 minutes and give you our findings for just 1 € without any obligation.