I enabled CC with a Kotlin Multiplatform build (1 ...
# gradleh
hfhbd
06/27/2024, 6:10 PMI enabled CC with a Kotlin Multiplatform build (1 JS target only) but now I get this confusing error message:
IllegalArgumentException: Cannot set the value of a property of type org.jetbrains.kotlin.gradle.plugin.statistics.BuildFusService using a provider of type org.jetbrains.kotlin.gradle.plugin.statistics.BuildFusService.v
Vampire
06/27/2024, 8:16 PMFrom a very cursory look, I'd almost guess that it might be caused by the plugin classpath injecting when you use the TestKit. If you instead publish to some local directory (not maven local) and consume the plugin from there, it might work better.
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hfhbd
06/27/2024, 9:56 PMHm, I don't use Testkit but an includedBuild, but I will test it
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Vampire
06/27/2024, 9:58 PMHm, was mostly a steer in the dark, as I've seen it is something with integ tests and most often for that TestKit is used, and I've already seen very strange behavior in the past when using TestKit and its feature to inject the plugin classpath. These strange behaviours often resulted in classloader issues like class not found exceptions that should be found or things like cannot cast A to A like in your case.
Vampire
06/27/2024, 9:59 PMBut if it is not that, I'd recommend you set a breakpoint to where the exception is coming from and then look at which classloaders the two identical classes are coming from.
Vampire
06/27/2024, 9:59 PMMaybe that will give the insight to understand the reason.
Vampire
06/27/2024, 10:01 PMAnother typical reason for such cannot cast A to A errors is, if you add plugin X (that contains A) to subprojectA and subprojectB without having it in the classloader of parentproject.
If then those two want to use something in common like a build service, the same happens.
But as far as I have seen from the scan, you also have the plugin in the root project, so that should not be it I think.
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hfhbd
06/27/2024, 10:05 PMThis is the code btw https://github.com/hfhbd/kotlin-actions/tree/supportCC, but yes, KGP is also applied in the root project indirectly by adding the dependencies of the included build into the settings classpath
hfhbd
06/27/2024, 10:05 PMAnd of course it does work without problems if I run the task from IntelliJ
hfhbd
06/27/2024, 10:13 PMWTF I bumped the develocity plugin to 3.17.5 and it does work now?!
hfhbd
06/27/2024, 10:16 PMAnd when I rerun the tasks now, it is working now too? After all the previous failures? I don't get it.
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Vampire
06/27/2024, 10:22 PMo_O
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hfhbd
06/27/2024, 10:22 PMHow does the develocity plugin influence the classpath? Does it depend on KGP somehow? But why does it conflict with the BuildFusService that is only part of KGP?
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Vampire
06/27/2024, 10:23 PMdark and evil magic?
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hfhbd
06/27/2024, 10:24 PMWell, I guess so... Anyway, it does work now, somehow I absolutely don't understand, but this is the definition of magic 🙂
hfhbd
06/27/2024, 10:28 PMAt least I can reproduce the error when I downgrade to 3.17.2
🤔 1
v
Vampire
06/27/2024, 10:29 PMInteresting. You should investigate it then maybe? Sounds quite frightening and it might just be an accidental and maybe even temporary side-effect that it works with the newer version. 🤷♂️
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hfhbd
06/27/2024, 10:30 PMwill do it tomorrow
👌 1
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