Hi get same error I changed webflux to 2.45 1 actionable task: 1 executed +--- org.springframework.boot:spring-boot-starter-webflux:2.4.2 | --- org.springframework:spring-webflux:5.3.3 -> 5.1.10.RELEASE +--- org.springframework.boot:spring-boot-starter-webflux:2.4.2 (n) +--- org.springframework.boot:spring-boot-starter-webflux:2.4.2 | --- org.springframework:spring-webflux:5.3.3 -> 5.1.10.RELEASE +--- org.springframework.boot:spring-boot-starter-webflux:2.4.2 | --- org.springframework:spring-webflux:5.3.3 -> 5.1.10.RELEASE +--- org.springframework.boot:spring-boot-starter-webflux:2.4.2 | --- org.springframework:spring-webflux:5.3.3 -> 5.1.10.RELEASE

the error i get is :

[ntLoopGroup-2-2] io.netty.util.ResourceLeakDetector : LEAK: ByteBuf.release() was not called before it's garbage-collected. See https://netty.io/wiki/reference-counted-objects.html for more information. Recent access records:

1:

io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:291) io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475) io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224) io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) java.lang.Thread.run(Thread.java:748)

2:

io.netty.buffer.AdvancedLeakAwareByteBuf.forEachByte(AdvancedLeakAwareByteBuf.java:670) io.netty.handler.codec.http.HttpObjectDecoder$HeaderParser.parse(HttpObjectDecoder.java:793) io.netty.handler.codec.http.HttpObjectDecoder.readHeaders(HttpObjectDecoder.java:592) io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:218) io.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:202) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475) io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224) io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) java.lang.Thread.run(Thread.java:748)

3:

io.netty.buffer.AdvancedLeakAwareByteBuf.forEachByte(AdvancedLeakAwareByteBuf.java:670) io.netty.handler.codec.http.HttpObjectDecoder$HeaderParser.parse(HttpObjectDecoder.java:793) io.netty.handler.codec.http.HttpObjectDecoder.readHeaders(HttpObjectDecoder.java:572) io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:218) io.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:202) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475) io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224) io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) java.lang.Thread.run(Thread.java:748)

4:

io.netty.buffer.AdvancedLeakAwareByteBuf.forEachByte(AdvancedLeakAwareByteBuf.java:670) io.netty.handler.codec.http.HttpObjectDecoder$HeaderParser.parse(HttpObjectDecoder.java:793) io.netty.handler.codec.http.HttpObjectDecoder$LineParser.parse(HttpObjectDecoder.java:842) io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:199) io.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:202) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:253) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475) io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224) io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) java.lang.Thread.run(Thread.java:748)

5:

Hint: 'reactor.left.httpCodec' will handle the message from this point. io.netty.channel.DefaultChannelPipeline.touch(DefaultChannelPipeline.java:116) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1475) io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224) io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) java.lang.Thread.run(Thread.java:748)

6:

io.netty.buffer.AdvancedLeakAwareByteBuf.internalNioBuffer(AdvancedLeakAwareByteBuf.java:736) io.netty.handler.ssl.SslHandler.toByteBuffer(SslHandler.java:1485) io.netty.handler.ssl.SslHandler.access$300(SslHandler.java:165) io.netty.handler.ssl.SslHandler$SslEngineType$3.unwrap(SslHandler.java:283) io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1329) io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224) io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271) io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505) io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444) io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352) io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374) io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360) io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930) io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697) io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632) io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) java.lang.Thread.run(Thread.java:748)

7:

io.netty.buffer.AdvancedLeakAwareByteBuf.nioBufferCount(AdvancedLeakAwareByteBuf.java:706)
io.netty.handler.ssl.SslHandler.toByteBuffer(SslHandler.java:1485)
io.netty.handler.ssl.SslHandler.access$300(SslHandler.java:165)
io.netty.handler.ssl.SslHandler$SslEngineType$3.unwrap(SslHandler.java:283)
io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1329)
io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224)
io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271)
io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505)
io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444)
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697)
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
java.lang.Thread.run(Thread.java:748)
Created at:
io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:349)
io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:187)
io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:178)
io.netty.buffer.AbstractByteBufAllocator.buffer(AbstractByteBufAllocator.java:115)
io.netty.handler.ssl.SslHandler.allocate(SslHandler.java:2138)
io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1324)
io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1224)
io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1271)
io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:505)
io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:444)
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:283)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:352)
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1421)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:374)
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:360)
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:930)
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:697)
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)
io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)
io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
java.lang.Thread.run(Thread.java:748): 12 leak records were discarded because the leak record count is targeted to 4. Use system property io.netty.leakDetection.targetRecords to increase the limit.

'org.springframework.boot' version '2.1.9.RELEASE' ext { set('springCloudVersion', 'Greenwich.SR3') set('springCloudServices', '2.1.4.RELEASE') }

appreciate your help

@rchalicham

Comment From: rstoyanchev

@rchalicham, I'm seeing conflicting version information. 2.4.2 and 2.4.5 at the top, then 2.1.9.RELEASE near the bottom. It also shows org.springframework:spring-webflux:5.3.3 -> 5.1.10.RELEASE. Can you double check your dependency tree and ensure that Spring Framework 5.3.x and not 5.1.x is in use.

Most likely you'll need to explain more about what the application does and show some example code. I don't see anything related to the Spring Framework in the leak records, only reactor.netty in one. @violetagg do you see anything more?

Comment From: rstoyanchev

This is most likely a dependency issue as mentioned also in https://github.com/spring-projects/spring-framework/issues/25213#issuecomment-840074404. Closing for now.

Comment From: rchalicham

these are my versions still i get LEAK:ByteBuf:release() do you think it is app code ?

gradle dependencies | grep webflux

| +--- io.springfox:springfox-spring-webflux:3.0.0

+--- org.springframework.boot:spring-boot-starter-webflux -> 2.4.5