Comments (11)
violetagg
commented on June 7, 2024
2
@AkashKumarAM21 Reactor Netty never changes the class loaders, we don't have any logging about this.
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violetagg
commented on June 7, 2024
@AkashKumarAM21 Can you check for two versions of Reactor Netty in your dependencies?
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violetagg
commented on June 7, 2024
@AkashKumarAM21 Another thing that you might try to check is the change of the class loaders described here spring-projects/spring-boot#19427
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AkashKumarAM21
commented on June 7, 2024
@AkashKumarAM21 Can you check for two versions of Reactor Netty in your dependencies?
@violetagg We can't have duplicate versions of same dependency and we fail if there are duplicate class paths from different packages, our build tools enforce it! I'll double check it though.
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AkashKumarAM21
commented on June 7, 2024
This is the latest stack trace, after we upgraded the dependencies.
encountered due to root cause: java.lang.ClassCastException: class reactor.netty.http.server.HttpServerOperations cannot be cast to class java.util.concurrent.atomic.AtomicLong (reactor.netty.http.server.HttpServerOperations is in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @39fb3ab6; java.util.concurrent.atomic.AtomicLong is in module java.base of loader 'bootstrap')
at com.xxxx.xxxxx(xxxx.java:106) ~[classes!/:?]
at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
at java.lang.Thread.run(Thread.java:840) [?:?]
Caused by: java.lang.RuntimeException: Unexpected exception from Netty
at com.xxxx.xxxx(xxxx.java:89) ~[classes!/:?]
at java.io.OutputStream.write(OutputStream.java:162) ~[?:?]
at java.io.InputStream.transferTo(InputStream.java:783) ~[?:?]
at com.xxxx.xxxx(xxxx.java:252) ~[classes!/:?]
... 6 more
Suppressed: java.lang.RuntimeException: Unexpected exception from Netty
at com.xxxx.xxxx(xxxxxxx.java:89) ~[classes!/:?]
at com.xxxx.xxxx(xxxxxxx.java:66) ~[classes!/:?]
at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
at java.lang.Thread.run(Thread.java:840) [?:?]
Caused by: java.lang.ClassCastException: class reactor.netty.http.server.HttpServerOperations cannot be cast to class java.util.concurrent.atomic.AtomicLong (reactor.netty.http.server.HttpServerOperations is in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @39fb3ab6; java.util.concurrent.atomic.AtomicLong is in module java.base of loader 'bootstrap')
at reactor.netty.http.server.HttpServerOperations.requestsCounter(HttpServerOperations.java:788) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at reactor.netty.http.server.HttpTrafficHandler.write(HttpTrafficHandler.java:307) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at reactor.netty.http.server.AbstractHttpServerMetricsHandler.write(AbstractHttpServerMetricsHandler.java:154) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) ~[Netty4-2-4.1.jar!/:4.1.100.Final]
at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) ~[Netty4-2-4.1.jar!/:4.1.100.Final]
at reactor.netty.http.server.SimpleCompressionHandler.write(SimpleCompressionHandler.java:50) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:940) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext$WriteTask.run(AbstractChannelHandlerContext.java:1247) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:416) ~[Netty4-24-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
... 1 more
Caused by: java.lang.ClassCastException: class reactor.netty.http.server.HttpServerOperations cannot be cast to class java.util.concurrent.atomic.AtomicLong (reactor.netty.http.server.HttpServerOperations is in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @39fb3ab6; java.util.concurrent.atomic.AtomicLong is in module java.base of loader 'bootstrap')
at reactor.netty.http.server.HttpServerOperations.requestsCounter(HttpServerOperations.java:788) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at reactor.netty.http.server.HttpTrafficHandler.write(HttpTrafficHandler.java:307) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at reactor.netty.http.server.AbstractHttpServerMetricsHandler.write(AbstractHttpServerMetricsHandler.java:154) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:863) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:968) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:856) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) ~[Netty4-2-4.1.jar!/:4.1.100.Final]
at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) ~[Netty4-2-4.1.jar!/:4.1.100.Final]
at reactor.netty.http.server.SimpleCompressionHandler.write(SimpleCompressionHandler.java:50) ~[reactor-netty-http-1.0.36.jar!/:1.0.36]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:879) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:940) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.channel.AbstractChannelHandlerContext$WriteTask.run(AbstractChannelHandlerContext.java:1247) ~[Netty4-23-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:416) ~[Netty4-24-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[Netty4-14-4.1.jar!/:4.1.100.Final]
... 1 more
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AkashKumarAM21
commented on June 7, 2024
@AkashKumarAM21 Another thing that you might try to check is the change of the class loaders described here spring-projects/spring-boot#19427
@violetagg We already provide custom Executor for our runAsync call, so this is not the issue ?
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violetagg
commented on June 7, 2024
@AkashKumarAM21 Can you provide a reproducible example so that we can investigate the issue?
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AkashKumarAM21
commented on June 7, 2024
@AkashKumarAM21 Can you provide a reproducible example so that we can investigate the issue?
Thats where we came to a blocker, this exception is infrequently (like 1 request fails for every 200,000 requests) and we are unable to produce it. We tried upgrading our dependencies to check if thats going to fix the issue, not luck yet.
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violetagg
commented on June 7, 2024
@AkashKumarAM21 It is hard for us to proceed without a clear scenario/reproducible example.
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AkashKumarAM21
commented on June 7, 2024
@AkashKumarAM21 It is hard for us to proceed without a clear scenario/reproducible example.
Yup, i understand that! we don't have any reproduction steps :(
Is there any feature/property that we can enable to get more information ? It would be helpfully if there is any logging or instrumentation we can turn on to get more details in this scenario.
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violetagg
commented on June 7, 2024
@AkashKumarAM21 I'm closing this as I cannot reproduce the issue. We can reopen it, if you are able to provide reproducible example.
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