LEAK: ByteBuf.release()

[rchalicham]

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

[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?

[rstoyanchev]

This is most likely a dependency issue as mentioned also in #25213 (comment). Closing for now.

[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

| --- org.springframework:spring-webflux:5.3.6

+--- org.springframework.boot:spring-boot-starter-webflux (n)

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

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

| --- org.springframework:spring-webflux:5.3.6

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

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

| --- org.springframework:spring-webflux:5.3.6

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

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

| --- org.springframework:spring-webflux:5.3.6

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

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

| --- org.springframework:spring-webflux:5.3.6

gradle dependencies | grep springframework

| | +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE

| | | +--- org.springframework:spring-beans:5.2.0.RELEASE -> 5.3.6

| | | | --- org.springframework:spring-core:5.3.6

| | | | --- org.springframework:spring-jcl:5.3.6

| | | +--- org.springframework:spring-context:5.2.0.RELEASE -> 5.3.6

| | | | +--- org.springframework:spring-aop:5.3.6

| | | | | +--- org.springframework:spring-beans:5.3.6 (*)

| | | | | --- org.springframework:spring-core:5.3.6 (*)

| | | | +--- org.springframework:spring-beans:5.3.6 (*)

| | | | +--- org.springframework:spring-core:5.3.6 (*)

| | | | --- org.springframework:spring-expression:5.3.6

| | | | --- org.springframework:spring-core:5.3.6 (*)

| | | +--- org.springframework:spring-aop:5.2.0.RELEASE -> 5.3.6 (*)

| | --- org.springframework.plugin:spring-plugin-metadata:2.0.0.RELEASE

| | +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE (*)

| | | +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE (*)

| | | --- org.springframework.plugin:spring-plugin-metadata:2.0.0.RELEASE (*)

| | | +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE (*)

| | | --- org.springframework.plugin:spring-plugin-metadata:2.0.0.RELEASE (*)

| | +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE (*)

| | +--- org.springframework.plugin:spring-plugin-metadata:2.0.0.RELEASE (*)

| | +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE (*)

| | --- org.springframework.plugin:spring-plugin-metadata:2.0.0.RELEASE (*)

| +--- org.springframework.plugin:spring-plugin-core:2.0.0.RELEASE (*)

| +--- org.springframework.plugin:spring-plugin-metadata:2.0.0.RELEASE (*)

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

| +--- org.springframework.boot:spring-boot:2.4.5

| | +--- org.springframework:spring-core:5.3.6 (*)

| | --- org.springframework:spring-context:5.3.6 (*)

| +--- org.springframework.boot:spring-boot-autoconfigure:2.4.5

| | --- org.springframework.boot:spring-boot:2.4.5 (*)

| +--- org.springframework.boot:spring-boot-starter-logging:2.4.5

| +--- org.springframework:spring-core:5.3.6 (*)

+--- org.springframework.cloud:spring-cloud-spring-service-connector:2.0.7.RELEASE

| +--- org.springframework.cloud:spring-cloud-connectors-core:2.0.7.RELEASE

| --- org.springframework:spring-context:5.0.13.RELEASE -> 5.3.6 (*)

+--- org.springframework.cloud:spring-cloud-cloudfoundry-connector:2.0.7.RELEASE

| --- org.springframework.cloud:spring-cloud-connectors-core:2.0.7.RELEASE

+--- org.springframework.cloud:spring-cloud-starter-config -> 3.0.3

| +--- org.springframework.cloud:spring-cloud-starter:3.0.2

| | +--- org.springframework.boot:spring-boot-starter:2.4.3 -> 2.4.5 (*)

| | +--- org.springframework.cloud:spring-cloud-context:3.0.2