HUJAK – Hrvatska udruga Java korisnika

Blog – Something is really broken with Eclipse foundation (Just code)

Na Just code : Weblog-u može se naći zanimljiva rasprava o razvoju Eclipse Juno verzije i problemima koji su iskrsli.

Članak – Java memes which refuse to die

Članak o nekim lošim praksama – Java memes which refuse to die.

Video – 55 New Things in Java 7 – GUI

55 New Things in Java 7 – GUI – YouTube.

Članak – Integrating JavaFX and Swing

Ako želite “osvježiti” Swing aplikaciju neki predlažu kao rješenje JavaFX Integrating JavaFX and Swing | Javalobby.

Konferencija – JDays

Konferencija jDays u Swedish Exhibition & Congress Centre, Mässans Gata 20, Gothenburg, Sweden, 3.-5.12.2012.

Home – JDays.

Video – Raspberry Pi i Java Embedded

Raspberry Pi: Developing with Java Embedded Technology – YouTube.

Članak – Exterminating Heisenbugs

Jednostavno – članak Exterminating Heisenbugs.

Članak – Case study on Memory Leak Detection Internals in Java

Članak o memory leak detectionu – Case study on Memory Leak Detection Internals in Java | Javalobby.

Oracle OpenWorld Music Festival

Kako konferencije JavaOne i OpenWorld ne bi bile “suhoparne” Oracle je najavio i Oracle OpenWorld Music Festival na kojem će među 15-tak izvođača nastupiti i Macy Gray (30.9. 20:30, Yerba Buena Gardens) i Joss Stone (2.10. 20:30, Union Square).

Video – Finding and Solving Deadlocks in Multi-Threaded Java Code by Heinz Kabutz

Heinz Kabutz o Deadlocksima u tri nastavka (detalji niže)

Finding and Solving Deadlocks in Multi-Threaded Java Code – Part 1 of 3 from Heinz Kabutz on Vimeo.

Finding and Solving Deadlocks in Multi-Threaded Java Code – Part 2 of 3 from Heinz Kabutz on Vimeo.

Finding and Solving Deadlocks in Multi-Threaded Java Code – Part 3 of 3 from Heinz Kabutz on Vimeo.

In this workshop by ExitCertified, we looked at how we avoid liveness hazards, how we find them and how we test that they are truly gone. You will learn several new unpublished techniques that will help you become more of a concurrency specialist. Material is from our new Concurrency Specialist Course. You are welcome to share this with your friends in industry.

After the lecture was done, we also spent time doing an exercise and we had some interesting questions and discussions by the participants of the workshop.

Here is the outline of the workshop:

10 Avoiding Liveness Hazards

* 10.1 Deadlock
o The drinking philosophers
o Causing a deadlock amongst philosophers
o Resolving deadlocks
o Discovering deadlocks
o Lock-ordering deadlocks
o Defining a global ordering
o Dynamic lock order deadlocks
o Defining order on dynamic locks
o Checking whether locks are held
o Imposing a natural order
o Deadlock between cooperating objects
o Open calls and alien methods
+ Example in Vector
o Resource deadlocks
o Thread-starvation deadlocks

* 10.2 Avoiding and diagnosing deadlocks
o Avoiding multiple locks
o Using open calls
o Unit testing for lock ordering deadlocks
o Adding a sleep to cause deadlocks
o Verifying thread deadlocks
o Timed lock attempts
o “TryLock” with synchronized
o Deadlock analysis with thread dumps
o Stopping deadlock victims
o DeadlockArbitrator

* 10.3 Other liveness hazards
o Starvation
+ ReadWriteLock in Java 5 vs Java 6
+ Detecting thread starvation
o Poor responsiveness
o Livelock