No support for Kotlin ULong as parameter in @RestController

[rotilho]

Affects: 6.1.1

---

I've encountered an issue while trying to use ULong type as @PathVariable or in @RequestParam.

Sample code:

@RestController
class TestController {

    @GetMapping("test1")
    suspend fun test1(): ULong {
        return ULong.MAX_VALUE // WORKS
    }

    @GetMapping("test2/{height}")
    suspend fun test2(@PathVariable height: ULong): ULong { // FAILS
        return height
    }

    @GetMapping("test3")
    suspend fun test3(@RequestParam("height") height: ULong): ULong { // FAILS
        return height
    }

    @PostMapping("/test4", consumes = ["application/json"])
    suspend fun test4(@RequestBody height: ULong): ULong { // FAILS
        return height
    }
}

Error:

2023-12-22T09:05:00.150+01:00 ERROR 24880 --- THIS [ctor-http-nio-3] a.w.r.e.AbstractErrorWebExceptionHandler : [892e946d-4]  500 Server Error for HTTP POST "/test4"

java.lang.IllegalArgumentException: object is not an instance of declaring class
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.checkReceiver(DirectMethodHandleAccessor.java:197)
	Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Assembly trace from producer [reactor.core.publisher.MonoCreate] :
	reactor.core.publisher.Mono.create(Mono.java:202)
	kotlinx.coroutines.reactor.MonoKt.monoInternal(Mono.kt:87)
Error has been observed at the following site(s):
	*_______________________Mono.create ⇢ at kotlinx.coroutines.reactor.MonoKt.monoInternal(Mono.kt:87)
	|_                      Mono.filter ⇢ at org.springframework.core.CoroutinesUtils.invokeSuspendingFunction(CoroutinesUtils.java:126)
	|_                  Mono.onErrorMap ⇢ at org.springframework.core.CoroutinesUtils.invokeSuspendingFunction(CoroutinesUtils.java:127)
	|_                         Mono.map ⇢ at org.springframework.http.codec.KotlinSerializationStringEncoder.encode(KotlinSerializationStringEncoder.java:79)
	|_                        Mono.flux ⇢ at org.springframework.http.codec.KotlinSerializationStringEncoder.encode(KotlinSerializationStringEncoder.java:80)
	|_               Flux.singleOrEmpty ⇢ at org.springframework.http.codec.EncoderHttpMessageWriter.write(EncoderHttpMessageWriter.java:128)
	|_               Mono.switchIfEmpty ⇢ at org.springframework.http.codec.EncoderHttpMessageWriter.write(EncoderHttpMessageWriter.java:129)
	|_                     Mono.flatMap ⇢ at org.springframework.http.codec.EncoderHttpMessageWriter.write(EncoderHttpMessageWriter.java:133)
	|_                 Mono.doOnDiscard ⇢ at org.springframework.http.codec.EncoderHttpMessageWriter.write(EncoderHttpMessageWriter.java:139)
	|_                       checkpoint ⇢ Handler atto.node.TestController#test4-V0uzKk8(long, Continuation) [DispatcherHandler]
	|_               Mono.onErrorResume ⇢ at org.springframework.web.reactive.DispatcherHandler.lambda$handleResultMono$7(DispatcherHandler.java:175)
	*__MonoCreate$DefaultMonoSink.error ⇢ at kotlinx.coroutines.reactor.MonoCoroutine.onCancelled(Mono.kt:113)
	*______________________Mono.flatMap ⇢ at org.springframework.web.reactive.DispatcherHandler.lambda$handleResultMono$6(DispatcherHandler.java:176)
	*______________________Mono.flatMap ⇢ at org.springframework.web.reactive.DispatcherHandler.handleResultMono(DispatcherHandler.java:172)
	*______________________Mono.flatMap ⇢ at org.springframework.web.reactive.DispatcherHandler.handle(DispatcherHandler.java:154)
	*________________________Mono.defer ⇢ at org.springframework.web.server.handler.DefaultWebFilterChain.filter(DefaultWebFilterChain.java:106)
	|_                   Mono.doOnError ⇢ at org.springframework.web.server.handler.ExceptionHandlingWebHandler.handle(ExceptionHandlingWebHandler.java:84)
	|_               Mono.onErrorResume ⇢ at org.springframework.web.server.handler.ExceptionHandlingWebHandler.handle(ExceptionHandlingWebHandler.java:85)
	|_                   Mono.doOnError ⇢ at org.springframework.web.server.handler.ExceptionHandlingWebHandler.handle(ExceptionHandlingWebHandler.java:84)
	*________________________Mono.error ⇢ at org.springframework.web.server.handler.ExceptionHandlingWebHandler$CheckpointInsertingHandler.handle(ExceptionHandlingWebHandler.java:106)
	|_                       checkpoint ⇢ HTTP POST "/test4" [ExceptionHandlingWebHandler]
Original Stack Trace:
		at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.checkReceiver(DirectMethodHandleAccessor.java:197)
		at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:99)
		at java.base/java.lang.reflect.Method.invoke(Method.java:580)
		at kotlin.reflect.jvm.internal.calls.ValueClassAwareCaller.call(ValueClassAwareCaller.kt:190)
		at kotlin.reflect.jvm.internal.KCallableImpl.callDefaultMethod$kotlin_reflection(KCallableImpl.kt:207)
		at kotlin.reflect.full.KCallables.callSuspendBy(KCallables.kt:74)
		at org.springframework.core.CoroutinesUtils.lambda$invokeSuspendingFunction$2(CoroutinesUtils.java:124)
		at kotlin.coroutines.intrinsics.IntrinsicsKt__IntrinsicsJvmKt$createCoroutineUnintercepted$$inlined$createCoroutineFromSuspendFunction$IntrinsicsKt__IntrinsicsJvmKt$4.invokeSuspend(IntrinsicsJvm.kt:270)
		at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
		at kotlinx.coroutines.internal.DispatchedContinuationKt.resumeCancellableWith(DispatchedContinuation.kt:367)
		at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:30)
		at kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable$default(Cancellable.kt:25)
		at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:110)
		at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:126)
		at kotlinx.coroutines.reactor.MonoKt.monoInternal$lambda$2(Mono.kt:92)
		at reactor.core.publisher.MonoCreate.subscribe(MonoCreate.java:61)
		at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:76)
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:165)
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)
		at reactor.core.publisher.MonoSubscribeOn$SubscribeOnSubscriber.onNext(MonoSubscribeOn.java:146)
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)
		at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onNext(FluxPeekFuseable.java:210)
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.complete(MonoIgnoreThen.java:293)
		at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.onNext(MonoIgnoreThen.java:188)
		at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:158)
		at reactor.core.publisher.MonoZip$ZipCoordinator.signal(MonoZip.java:297)
		at reactor.core.publisher.MonoZip$ZipInner.onNext(MonoZip.java:478)
		at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180)
		at reactor.core.publisher.FluxDefaultIfEmpty$DefaultIfEmptySubscriber.onNext(FluxDefaultIfEmpty.java:122)
		at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74)
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:129)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:107)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onNext(FluxMapFuseable.java:299)
		at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onNext(FluxFilterFuseable.java:337)
		at reactor.core.publisher.Operators$BaseFluxToMonoOperator.completePossiblyEmpty(Operators.java:2097)
		at reactor.core.publisher.MonoCollect$CollectSubscriber.onComplete(MonoCollect.java:145)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onComplete(FluxMapFuseable.java:152)
		at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onComplete(FluxPeekFuseable.java:277)
		at reactor.core.publisher.FluxMap$MapSubscriber.onComplete(FluxMap.java:144)
		at reactor.netty.channel.FluxReceive.terminateReceiver(FluxReceive.java:483)
		at reactor.netty.channel.FluxReceive.drainReceiver(FluxReceive.java:275)
		at reactor.netty.channel.FluxReceive.request(FluxReceive.java:133)
		at reactor.core.publisher.FluxMap$MapSubscriber.request(FluxMap.java:164)
		at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
		at reactor.core.publisher.Operators$BaseFluxToMonoOperator.request(Operators.java:2067)
		at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.request(FluxFilterFuseable.java:411)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.request(FluxMapFuseable.java:360)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:136)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.request(FluxMapFuseable.java:171)
		at reactor.core.publisher.Operators$MultiSubscriptionSubscriber.set(Operators.java:2367)
		at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onSubscribe(FluxOnErrorResume.java:74)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
		at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onSubscribe(FluxContextWrite.java:101)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableConditionalSubscriber.onSubscribe(FluxMapFuseable.java:265)
		at reactor.core.publisher.FluxFilterFuseable$FilterFuseableConditionalSubscriber.onSubscribe(FluxFilterFuseable.java:305)
		at reactor.core.publisher.Operators$BaseFluxToMonoOperator.onSubscribe(Operators.java:2051)
		at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onSubscribe(FluxMapFuseable.java:96)
		at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178)
		at reactor.core.publisher.FluxMap$MapSubscriber.onSubscribe(FluxMap.java:92)
		at reactor.netty.channel.FluxReceive.startReceiver(FluxReceive.java:172)
		at reactor.netty.channel.FluxReceive.lambda$subscribe$2(FluxReceive.java:150)
		at io.netty.util.concurrent.AbstractEventExecutor.runTask$$$capture(AbstractEventExecutor.java:173)
		at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java)
		at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:166)
		at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java)
		at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470)
		at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569)
		at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
		at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
		at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
		at java.base/java.lang.Thread.run(Thread.java:1583)

[sdeleuze]

Duplicate of #31846.