I'm running some Kotlin code from a test using Gradle. This jvm code calls native code underneath using the last FFM Api in jdk 22 but

atof

will parse

2.2598258677677969

as

2

because on my system

localeconv()->decimal_point

is indeed

,

. Is there a way this might be connected to Gradle and/or some of its settings about the Locale used from there?

you can configure the test task to set a particular environment variable

tasks.test {
    environment("LC_ALL", "C")
}