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I am writing a new release of my Spring Module(link1, link2), including a feature. issues can be hard to solve especially with new programming language features.

The issue with Java

However I am encountering several issues with the Java 8 promises aka CompletableFutures.

My issues are :

  • I am using a dedicated ForkNodePool but some promises are stilled created outside my pool
  • Some threads are slow to die (WAITING state is too long)
  • Completable.allOf is creating promises in the common ForkNodePool
  • I had an exceeded waiting thread exception

Here is two links that are helping me a lot to solve these problems :

  • Java Parallel Calamity : link
  • The Java Fork/Join Framework : link2

These two articles are well documented and explain into the details how Java/Threads/Java//Promises and works.

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Sylvain Leroy

Senior Software Quality Manager and Solution Architect in Switzerland, I have previously created my own company, Tocea, in Software Quality Assurance. Now I am offering my knowledges and services in a small IT Consulting company : Byoskill and a website www.byoskill.com Currently living in Lausanne (CH)