ClassCastException triggered when sending WebSocket frame with Secured annotation after onOpen event

[rjaros87]

Expected Behavior

Frames should be processed successfully without any exceptions being thrown.

Actual Behaviour

In current version of Micronaut (4.6.3) with enabled security and the @Secured({SecurityRule.IS_AUTHENTICATED}) annotation is applied to a WebSocket server, a ClassCastException is thrown when any type of frame is sent after the onOpen event.
WebSocket server preview:

@Secured({SecurityRule.IS_AUTHENTICATED}) //<--- triggers ClassCastException for any frame send just after onOpen event (client side)
@ServerWebSocket("/chat/{topic}/{username}") // (1)
public class ChatServerWebSocket {
// body: https://docs.micronaut.io/latest/guide/#websocketServer
}

the ClassCastException is thrown when any frame is sent after onOpen event. Here is a log output, e.g. from ping frame:

12:42:12.946 [main] INFO  io.micronaut.runtime.Micronaut - Startup completed in 1513ms. Server Running: http://localhost:8080
12:42:55.629 [default-nioEventLoopGroup-1-2] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.checkAccessible: true
12:42:55.629 [default-nioEventLoopGroup-1-2] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.checkBounds: true
12:42:55.630 [default-nioEventLoopGroup-1-2] DEBUG i.n.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@416cf938
12:42:55.639 [default-nioEventLoopGroup-1-2] DEBUG i.n.h.c.compression.ZlibCodecFactory - -Dio.netty.noJdkZlibDecoder: false
12:42:55.639 [default-nioEventLoopGroup-1-2] DEBUG i.n.h.c.compression.ZlibCodecFactory - -Dio.netty.noJdkZlibEncoder: false
12:42:55.642 [default-nioEventLoopGroup-1-2] DEBUG i.n.handler.codec.compression.Brotli - brotli4j not in the classpath; Brotli support will be unavailable.
12:42:55.643 [default-nioEventLoopGroup-1-2] DEBUG i.n.handler.codec.compression.Zstd - zstd-jni not in the classpath; Zstd support will be unavailable.
12:42:55.646 [default-nioEventLoopGroup-1-2] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxCapacityPerThread: 4096
12:42:55.646 [default-nioEventLoopGroup-1-2] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.ratio: 8
12:42:55.646 [default-nioEventLoopGroup-1-2] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.chunkSize: 32
12:42:55.646 [default-nioEventLoopGroup-1-2] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.blocking: false
12:42:55.646 [default-nioEventLoopGroup-1-2] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.batchFastThreadLocalOnly: true
12:42:55.699 [default-nioEventLoopGroup-1-2] DEBUG i.m.s.t.reader.HttpHeaderTokenReader - Looking for bearer token in Authorization header
12:42:55.700 [default-nioEventLoopGroup-1-2] DEBUG i.m.s.t.reader.DefaultTokenResolver - Token <JWT_TOKEN> found in request GET /chat/mytopic/rjaros87
12:42:55.730 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: ServiceHttpClientConfiguration
12:42:55.730 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - No bean candidates found for type: ServiceHttpClientConfiguration
12:42:55.730 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: HttpClient
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext -   class io.micronaut.http.client.netty.DefaultHttpClient null Definition: io.micronaut.http.client.netty.DefaultNettyHttpClientRegistry
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [Definition: io.micronaut.http.client.netty.DefaultNettyHttpClientRegistry] for type: httpClient 
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: DefaultNettyHttpClientRegistry
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext -   class io.micronaut.http.client.netty.DefaultNettyHttpClientRegistry null Definition: io.micronaut.http.client.netty.DefaultNettyHttpClientRegistry
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [Definition: io.micronaut.http.client.netty.DefaultNettyHttpClientRegistry] for type: defaultNettyHttpClientRegistry 
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: ConversionService
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext -   class io.micronaut.context.env.DefaultEnvironment @Primary io.micronaut.context.DefaultRuntimeBeanDefinition@5149f008
12:42:55.731 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [io.micronaut.context.DefaultRuntimeBeanDefinition@5149f008] for type: conversionService 
12:42:55.734 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: RequestBinderRegistry
12:42:55.734 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext -   class io.micronaut.http.bind.DefaultRequestBinderRegistry null Definition: io.micronaut.http.bind.DefaultRequestBinderRegistry
12:42:55.734 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext -   class io.micronaut.http.server.netty.binders.NettyServerRequestBinderRegistry null Definition: io.micronaut.http.server.netty.binders.NettyServerRequestBinderRegistry
12:42:55.734 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Searching for @Primary for type [requestBinderRegistry] from candidates: [Definition: io.micronaut.http.bind.DefaultRequestBinderRegistry, Definition: io.micronaut.http.server.netty.binders.NettyServerRequestBinderRegistry] 
12:42:55.734 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Picked bean Definition: io.micronaut.http.bind.DefaultRequestBinderRegistry with the highest precedence for type RequestBinderRegistry and qualifier null
12:42:55.734 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [Definition: io.micronaut.http.bind.DefaultRequestBinderRegistry] for type: requestBinderRegistry 
12:42:55.746 [default-nioEventLoopGroup-1-2] DEBUG io.netty.handler.ssl.OpenSsl - netty-tcnative not in the classpath; OpenSslEngine will be unavailable.
12:42:55.905 [default-nioEventLoopGroup-1-2] DEBUG io.netty.handler.ssl.JdkSslContext - Default protocols (JDK): [TLSv1.3, TLSv1.2] 
12:42:55.905 [default-nioEventLoopGroup-1-2] DEBUG io.netty.handler.ssl.JdkSslContext - Default cipher suites (JDK): [TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384]
12:42:55.912 [default-nioEventLoopGroup-1-2] DEBUG io.micronaut.context.lifecycle - Created bean [io.micronaut.http.client.netty.DefaultHttpClient@48118924] from definition [Definition: io.micronaut.http.client.netty.DefaultNettyHttpClientRegistry] with qualifier [null]
12:42:55.948 [io-executor-thread-1] DEBUG i.m.s.t.jwt.validator.JwtValidator - Validating signed JWT
12:42:55.949 [io-executor-thread-1] DEBUG i.m.s.t.jwt.validator.JwtValidator - JWT is signed and no signature configurations -> not verified
12:42:56.802 [default-nioEventLoopGroup-1-3] DEBUG io.netty.handler.ssl.SslHandler - [id: 0x952bb14c, L:/10.20.112.115:63237 - R:cognito-idp.us-east-1.amazonaws.com/35.175.54.203:443] HANDSHAKEN: protocol:TLSv1.3 cipher suite:TLS_AES_128_GCM_SHA256
12:42:57.017 [default-nioEventLoopGroup-1-3] DEBUG i.n.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@11707edc
12:42:57.046 [default-nioEventLoopGroup-1-3] DEBUG i.m.h.client.netty.DefaultHttpClient - Sending HTTP GET to https://cognito-idp.us-east-1.amazonaws.com/us-east-1_<COGNITO_ID>/.well-known/jwks.json
12:42:57.219 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Resolving beans for type: MediaTypeQualifier[type=MessageBodyReader<String>, mediaTypes=[application/json], annotationType=interface io.micronaut.http.annotation.Consumes] and Matches [MessageBodyReader<String>] io.micronaut.http.body.MessageBodyReader 
12:42:57.219 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Found a registration BeanRegistration: io.micronaut.http.body.StringBodyReader@66434cc8 for candidate: Definition: io.micronaut.http.body.StringBodyReader with qualifier: MediaTypeQualifier[type=MessageBodyReader<String>, mediaTypes=[application/json], annotationType=interface io.micronaut.http.annotation.Consumes] and Matches [MessageBodyReader<String>]
12:42:57.227 [default-nioEventLoopGroup-1-3] DEBUG i.m.s.t.j.s.jwks.JwksSignatureUtils - JWT Key ID: XlSEdNJHs/GcbSFoU/9UFP8LNPNBDOFnbIYaaiteV20=
12:42:57.227 [default-nioEventLoopGroup-1-3] DEBUG i.m.s.t.j.s.jwks.JwksSignatureUtils - JWK Set Key IDs: fJQX50+mEwwgA0Offv7lYOT7xsTpiYzuwRu10zhasso=,XlSEdNJHs/GcbSFoU/9UFP8LNPNBDOFnbIYaaiteV20=
12:42:57.227 [default-nioEventLoopGroup-1-3] DEBUG i.m.s.t.j.s.jwks.JwksSignatureUtils - Found 1 matching JWKs
12:42:57.230 [default-nioEventLoopGroup-1-3] DEBUG i.m.s.t.j.n.ReactiveJwksSignature - JWT Signature verified: <JWT_TOKEN>
12:42:57.233 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: EmbeddedServer T
12:42:57.233 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext -   interface io.micronaut.http.server.netty.NettyEmbeddedServer null Definition: io.micronaut.http.server.netty.DefaultNettyEmbeddedServerFactory
12:42:57.233 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [Definition: io.micronaut.http.server.netty.DefaultNettyEmbeddedServerFactory] for type: T 
12:42:57.234 [default-nioEventLoopGroup-1-3] DEBUG i.m.c.e.ApplicationEventPublisher - Publishing event: io.micronaut.security.event.TokenValidatedEvent[source=<JWT_TOKEN>]
12:42:57.234 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Resolving beans for type: <TokenValidatedEvent> io.micronaut.context.event.ApplicationEventListener 
12:42:57.239 [default-nioEventLoopGroup-1-3] DEBUG i.m.security.filters.SecurityFilter - Attributes: sub=><AWS_CLIENT_ID>, token_use=>access, scope=>my/scope, auth_time=>1728636862, iss=>https://cognito-idp.us-east-1.amazonaws.com/us-east-1_BgKMT8cuh, exp=>Sat Oct 12 10:54:22 CEST 2024, iat=>Fri Oct 11 10:54:22 CEST 2024, version=>2, jti=>8e2e9524-8596-4974-a720-04dad089f535, client_id=><AWS_CLIENT_ID>
12:42:57.243 [default-nioEventLoopGroup-1-3] DEBUG i.m.security.rules.IpPatternsRule - One or more of the IP patterns matched the host address [0:0:0:0:0:0:0:1]. Continuing request processing.
12:42:57.245 [default-nioEventLoopGroup-1-3] DEBUG i.m.s.rules.AbstractSecurityRule - The given roles [[my/scope, isAnonymous(), isAuthenticated()]] matched one or more of the required roles [[isAuthenticated()]]. Allowing the request
12:42:57.245 [default-nioEventLoopGroup-1-3] DEBUG i.m.security.filters.SecurityFilter - Authorized request GET /chat/mytopic/rjaros87. The rule provider io.micronaut.security.rules.SecuredAnnotationRule authorized the request.
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: ChatServerWebSocket
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext -   class com.pega.example.ChatServerWebSocket null Definition: com.pega.example.ChatServerWebSocket
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [Definition: com.pega.example.ChatServerWebSocket] for type: chatServerWebSocket 
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: ChatServerWebSocket
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext -   class com.pega.example.ChatServerWebSocket null Definition: com.pega.example.ChatServerWebSocket
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Qualifying bean [chatServerWebSocket] for qualifier: @ServerWebSocket 
12:42:57.246 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [Definition: com.pega.example.ChatServerWebSocket] for type: @ServerWebSocket chatServerWebSocket 
12:42:57.251 [default-nioEventLoopGroup-1-3] DEBUG i.n.h.c.h.w.WebSocketServerHandshaker - [id: 0x3fc4ca06, L:/[0:0:0:0:0:0:0:1]:8080 - R:/[0:0:0:0:0:0:0:1]:63236] WebSocket version V13 server handshake
12:42:57.251 [default-nioEventLoopGroup-1-3] DEBUG i.n.h.c.h.w.WebSocketServerHandshaker - WebSocket version 13 server handshake key: eeE3s7zsWlnpGrfVAS3eNw==, response: A7enmVIT1unUBwvxq1zJBf/oGUc=
12:42:57.259 [default-nioEventLoopGroup-1-2] ERROR i.m.h.s.netty.RoutingInBoundHandler - Micronaut Server Error - No request state present. Cause: class io.netty.handler.codec.http.websocketx.PingWebSocketFrame cannot be cast to class io.netty.handler.codec.http.HttpRequest (io.netty.handler.codec.http.websocketx.PingWebSocketFrame and io.netty.handler.codec.http.HttpRequest are in unnamed module of loader 'app')
java.lang.ClassCastException: class io.netty.handler.codec.http.websocketx.PingWebSocketFrame cannot be cast to class io.netty.handler.codec.http.HttpRequest (io.netty.handler.codec.http.websocketx.PingWebSocketFrame and io.netty.handler.codec.http.HttpRequest are in unnamed module of loader 'app')
	at io.micronaut.http.server.netty.handler.PipeliningServerHandler$MessageInboundHandler.read(PipeliningServerHandler.java:371)
	at io.micronaut.http.server.netty.handler.PipeliningServerHandler.channelRead(PipeliningServerHandler.java:221)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
	at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:289)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1357)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:868)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
	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:833)
12:42:57.267 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: ApplicationEventPublisher<WebSocketSessionOpenEvent T>
12:42:57.267 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext -   interface io.micronaut.context.event.ApplicationEventPublisher null io.micronaut.context.event.ApplicationEventPublisherFactory@77d28268
12:42:57.267 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [io.micronaut.context.event.ApplicationEventPublisherFactory@77d28268] for type: applicationEventPublisher 
12:42:57.268 [default-nioEventLoopGroup-1-3] DEBUG io.micronaut.context.lifecycle - Created bean [io.micronaut.context.event.ApplicationEventPublisherFactory$2@5a4e830e] from definition [io.micronaut.context.event.ApplicationEventPublisherFactory@77d28268] with qualifier [null]
12:42:57.268 [default-nioEventLoopGroup-1-3] DEBUG i.m.c.e.ApplicationEventPublisher - Publishing event: io.micronaut.websocket.event.WebSocketSessionOpenEvent[source=WebSocket Session: eeE3s7zsWlnpGrfVAS3eNw==]
12:42:57.268 [default-nioEventLoopGroup-1-3] DEBUG i.m.context.DefaultBeanContext - Resolving beans for type: <WebSocketSessionOpenEvent> io.micronaut.context.event.ApplicationEventListener 
12:42:59.261 [default-nioEventLoopGroup-1-2] DEBUG i.m.h.s.n.w.NettyServerWebSocketHandler - Closing WebSocket session WebSocket Session: eeE3s7zsWlnpGrfVAS3eNw== with reason CloseReason{code=1000, reason=''}
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG i.m.h.s.n.w.NettyServerWebSocketHandler - Removing WebSocket Server session: WebSocket Session: eeE3s7zsWlnpGrfVAS3eNw==
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Finding candidate beans for type: ApplicationEventPublisher<WebSocketSessionClosedEvent T>
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext -   interface io.micronaut.context.event.ApplicationEventPublisher null io.micronaut.context.event.ApplicationEventPublisherFactory@77d28268
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Found concrete candidate [io.micronaut.context.event.ApplicationEventPublisherFactory@77d28268] for type: applicationEventPublisher 
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG io.micronaut.context.lifecycle - Created bean [io.micronaut.context.event.ApplicationEventPublisherFactory$2@4ed477ab] from definition [io.micronaut.context.event.ApplicationEventPublisherFactory@77d28268] with qualifier [null]
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG i.m.c.e.ApplicationEventPublisher - Publishing event: io.micronaut.websocket.event.WebSocketSessionClosedEvent[source=WebSocket Session: eeE3s7zsWlnpGrfVAS3eNw==]
12:42:59.265 [default-nioEventLoopGroup-1-2] DEBUG i.m.context.DefaultBeanContext - Resolving beans for type: <WebSocketSessionClosedEvent> io.micronaut.context.event.ApplicationEventListener 
12:43:57.214 [default-nioEventLoopGroup-1-3] DEBUG i.m.h.client.netty.DefaultHttpClient - Server sent GOAWAY frame. errorCode=0 base64(content)=

Without annotation or @Secured({SecurityRule.IS_ANONYMOUS}) it works correctly (without exception).
And temporary workaround is to wait >=10ms (tested on local machine), before sending any frames.

Steps To Reproduce

1. Create Micronaut application based on Micronaut Guide
2. Enable security (in my case I used AWS Cognito, here is Micronaut Guide for that)
3. Add @Secured({SecurityRule.IS_AUTHENTICATED}) annotation
4. Start application
5. Execute below python script and verify Micronaut application logs

import asyncio
import websockets

WEBSOCKET_URL = "ws://localhost:8080/chat/mytopic/rjaros87"
JWT_TOKEN = "<PROVIDE_VALID_JWT_TOKEN>"

async def on_open(websocket):
    print("Connection opened")
    # await asyncio.sleep(0.01) # Sleep for a short time to allow the server to process the connection (workaround)
    await websocket.ping()
    print("Ping frame sent")

    print("Going to close the connection in 2 seconds")
    await asyncio.sleep(2)
    await websocket.close()

async def on_close(websocket):
    print(f"Connection closed with code: {websocket.close_code}")

async def connect_and_ping():
    headers = {
        "Authorization": f"Bearer {JWT_TOKEN}"
    }
    async with websockets.connect(WEBSOCKET_URL, extra_headers=headers) as websocket:
        await on_open(websocket)

        await on_close(websocket)

if __name__ == "__main__":
    asyncio.run(connect_and_ping())

Environment Information

OS: MacOS, Linux, Docker
JDK: 17

Example Application

https://docs.micronaut.io/latest/guide/#websocketServer

Version

4.6.3