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Ladicek merged 1 commit into from
Apr 23, 2025
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SmallRye Fault Tolerance 6.9.1 release announcement #119

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27 changes: 27 additions & 0 deletions _posts/2025-04-23-fault-tolerance-6-9-1.adoc
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:page-layout: post
:page-title: Fault Tolerance 6.9.1
:page-synopsis: SmallRye Fault Tolerance 6.9.1 released!
:page-tags: [announcement, microprofile]
:page-date: 2025-04-23 08:00:00.000 +0100
:page-author: lthon
:smallrye-ft: SmallRye Fault Tolerance
:microprofile-ft: MicroProfile Fault Tolerance

= Fault Tolerance 6.9.1

Today, we announce the https://github.com/smallrye/smallrye-fault-tolerance/releases/tag/6.9.1[release] of {smallrye-ft} 6.9.1.
This release contains an important bugfix.

After the link:/blog/fault-tolerance-6-7-0[big async rewrite], the retry strategy used recursion to implement a loop even in the synchronous case.
That is wrong, because it may easily lead to a stack overflow error in case of a high number of retry attempts.
This bug is now fixed.
The internal `Future` type has gained a dedicated `loop()` method to implement `while` loops.
The implementation is structured so that recursion is used for asynchronous iterations, while classic loop is used for synchronous iterations.
In other words, it is a "just enough" implementation of trampolines.
Thanks Maxuel Macavilca Montjoy for the issue report!

Also, with this release, the portable extension in {smallrye-ft} ignores synthetic methods.
This means they are not intercepted anymore by the fault tolerance interceptor.
The Quarkus extension for {smallrye-ft} has already been ignoring synthetic methods for a long time; now all the other CDI Full based implementations work similarly.

As usual, if you have any ideas for improvements, please https://github.com/smallrye/smallrye-fault-tolerance/issues[file an issue]!