OK, thanks. It will take some (couple of years) before most libraries are catching up.
At least, Spring Boot will already support Java 21 with virtual threads in their next release ( https://spring.io/blog/2023/08/24/spring-boot-3-2-0-m2-available-now). I don't know exactly how they do it, but they ship Spring as a multi release Jar for this purpose. When running Spring on Java 21 you can enable it ( https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-3.2.0-M1-Release-Notes#support-for-virtual-threads ). I was thinking more or less in the same lines for Camel. For most of the cases the underlying libraries needs to be updated, but for some stuff like Seda or Stream caching this may already work from within the libraries own code. Raymond On Fri, Sep 1, 2023 at 9:36 AM Claus Ibsen <claus.ib...@gmail.com> wrote: > Hi > > No plan for virtual threads - this relies on 3rd party libraries and many > other frameworks starting to adopt them as well, which means Java 21 as > minimum base version. > Support for Java 21 is to run on JDK21. JDK17 will be primary supported, > and 21 secondary, that is the plan for this year. > > > On Fri, Sep 1, 2023 at 9:34 AM ski n <raymondmees...@gmail.com> wrote: > > > In integration there is a lot of Async I/O (calling disk, databases, > api's > > and other external systems). Though Camel is very fast, it's mostly these > > async I/O calls that take time and eat a lot of platform threads. > > > > For example: > > > > from("direct:start") > > .log("some log") //this takes less than 1 ms > > .setHeader(Exchange.HTTP_URI, constant("http://someapi";)) //this takes > > less than 1 ms > > .to("http://someapi";) //this takes 3 seconds > > .setHeader("Result","Done") //this takes less than 1 ms > > .to("sql://insertindatabase") //this takes less than 1 seconds > > ; > > > > One solution to this is using virtual threads. They are already part of > > Kotlin (coroutines), but now coming to Java as well in Java 21 (release > > 19th September). > > > > In the Camel 4 blog "What's new" it states that: > > > > "We plan to support Java 21 on next LTS released by the end of this > year." > > > > Camel next LTS release (4.2) is expected around December. > > > > I was wondering what the plans here are with supporting virtual threads? > > Will they part of 4.2 or planned for later? > > > > Raymond > > > > > -- > Claus Ibsen > ----------------- > @davsclaus > Camel in Action 2: https://www.manning.com/ibsen2 >
