Library jar is not included to war

[jvlka-jvlka]

Hi,
After upgrade to kotlin 2.2.21 from 2.0.20, ktor 3.3.3 after the WAR build coroutines-core is not added. Due to that I can not start application on Open shift.

2026-02-25 10:23:19.643 SEVERE [http-nio-8080-exec-1] org.apache.catalina.core.StandardWrapperValve.invoke Allocate exception for servlet [KtorServlet]
java.lang.ClassNotFoundException: kotlinx.coroutines.CoroutineScope

I use dependencies in build:
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlinxCoroutinesVersion")

KotlinxCoroutinesVersion=1.10.2

I can see that dependency in RuntimeClasspath.

[dkhalanskyjb]

Hi! Unfortunately, there is not enough information in this issue submission to figure out the reason this exception is thrown. In any scenario, since this happened after a Kotlin upgrade, this doesn't seem related to anything the library is doing: Kotlin is supposed to be able to consume older versions of libraries. I suggest filing an issue to https://kotl.in/issue, where you will get more relevant responses. Additionally, please look into providing a project where the issue reproduces—this way, we won't have to guess what happened and will be able to find the root cause and, hopefully, propose a workaround.