53 记一次自定义 classloader 导致的 metadataspace OOM
Posted 蓝风9
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前言
这是最近 flink 集群上面暴露出现的一个问题
具体的细节原因 就是 flink 上面提交任务的时候, 自定义的 classloader 加载 driver.jar 然后导致 metaspace OOM
由于这边的 TaskManager metadataspace 配置相对较小(MaxMetaspaceSize配置为96M), 然后导致 出现了 metadataspace 的 OOM
测试用例
模拟的测试用例如下, 这里使用 -ClassUnloading 来模拟 ChildFirstClassloader 内存泄露的场景
大致的方式是 使用 ChildFirstClassLoader 不断的从 netty-all.jar 中加载类型, 最终导致 metadataspace OOM
netty-all-classes.txt 中的内容为 netty-all.jar 中各个类型的列表, 这里不过是为了 批量加载类型, 让问题更加容易复现而已
/**
* Test04MetadataSpaceOOM
*
* @author Jerry.X.He
* @version 1.0
* @date 2022/1/11 19:21
*/
public class Test04MetadataSpaceOOM
// Test04MetadataSpaceOOM
// -XX:+UseSerialGC -Xmx100M -Xms100M -XX:MaxMetaspaceSize=100M -XX:-ClassUnloading
public static void main(String[] args) throws Exception
File classFile = new File("E:\\\\ProgramFiles\\\\MVNRepository\\\\io\\\\netty\\\\netty-all\\\\4.1.58.Final\\\\netty-all-4.1.58.Final.jar");
URL[] classpathes = new URL[]
classFile.toURI().toURL()
;
String path = "D:\\\\Tmp\\\\14_metaspaceOOM\\\\netty-all-classes.txt";
List<String> fullClassNames = Tools.getContentWithList(path);
String className = null;
try
int counter = 0;
for (int i = 0; i < 100; i++)
ChildFirstClassLoader classloader = new ChildFirstClassLoader(
classpathes,
Test18ChildFirstClassloader.class.getClassLoader(),
new String[]
);
for (String _className : fullClassNames)
className = _className;
classloader.loadClass(className);
System.out.println(String.format(" the %s loop ", counter++));
catch (Throwable t)
t.printStackTrace();
限定 vm 参数之后执行, 日志大概如下
the 0 loop
the 1 loop
the 2 loop
the 3 loop
the 4 loop
the 5 loop
the 6 loop
the 7 loop
the 8 loop
java.lang.OutOfMemoryError: Metaspace
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at org.apache.flink.util.ChildFirstClassLoader.loadClass(ChildFirstClassLoader.java:66)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at com.hx.test.Test04MetadataSpaceOOM.main(Test04MetadataSpaceOOM.java:43)metdataspace 中都有那些东西?
呵呵 这里仅仅是粗略描述一下, 不会做更细节的阐述
可以看到的是 这里除了 Symbol, TypeArray, 其他的都是和具体的类型挂钩的
类型加载的越多, metadataspace 中占用的空间也就越多
可以搜索 继承自 MetaspaceObj 的类型即可, 这部分类型 要么是重写了 operator new, 要么是有专门的工厂方法从 metaspace 分配对象
Class : .class 对应的 InstanceKlass
Symbol : 全局字符串符号表
Method : Method
ConstMethod : ConstMethod
MethodData : MethodData
ConstantPool : 从 .class 中加载的常量池信息
ConstantPoolCache : 运行时常量池相关的需要的一部分额外的数据结构
Annotation : Annotation
MethodCounter : MethodCounter
TypeArray* : 全局的一部分数组 + 以上一部分数据结构需要的数组inspect 测试用例
要检测 metadataspace 的使用, 可以通过 jvisualvm 来 inspect, 我这里写了一个 agent 来查询具体的信息, 这里我们两者放在一起 参照一下
1 for 循环之前情况如下, 一个是 jvisualvm 的统计信息, 一个是 agent 的统计信息, 可以看到差距是在 200K 以内, 还算可以
2 for 循环两次之后, 可以看到统计的差距也不是很大
两次循环, metadataspace 占用的空间大概是多了 21M, 平均一次循环的这些 .class 占用的空间 大概是在 10.5M 左右
3 我们做一个大致的推导, 总共的 metadataspace 最大限定是 100M, 初始其他的 class 加载之后为 10.5M
然后 平均每次循环加载的 class 占用 metadataspace 10.5M, 可以推导出 大概是 7, 8 次之后, metadataspace 会被占满
然后 我们看一下 这里的测试用例的执行情况
注意 : 这里执行是 8次循环之后, 发生了 OOM, 上面的直接执行是 9次循环之后发生了 OOM, 是因为 我的 agent 会导致一部分 class 的加载, 增加了 metadataspace 的占用
the 0 loop
the 1 loop
the 2 loop
the 3 loop
the 4 loop
the 5 loop
the 6 loop
the 7 loop
java.lang.OutOfMemoryError: Metaspace
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at org.apache.flink.util.ChildFirstClassLoader.loadClass(ChildFirstClassLoader.java:66)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at com.hx.test.Test04MetadataSpaceOOM.main(Test04MetadataSpaceOOM.java:45)上面的这个 10.5M 是怎么来的 ?
各个循环中加载的 .class 相关 InstanceKlass, ConstantPool, ConstantPoolCache, Method, ConstMethod, MethodData 占用空间大概如下
列表合计 10973794 字节 = 10.46M
io/netty/buffer/WrappedCompositeByteBuf 102430
io/netty/buffer/CompositeByteBuf 88933
io/netty/buffer/AdvancedLeakAwareCompositeByteBuf 79493
io/netty/handler/codec/http2/ReadOnlyHttp2Headers 72237
io/netty/buffer/AbstractByteBuf 69923
io/netty/handler/codec/ReplayingDecoderByteBuf 67351
io/netty/buffer/SwappedByteBuf 66404
io/netty/buffer/EmptyByteBuf 66342
io/netty/buffer/WrappedByteBuf 66103
io/netty/buffer/ByteBuf 64500
io/netty/buffer/AdvancedLeakAwareByteBuf 55610
io/netty/channel/DefaultChannelPipeline 49542
io/netty/util/AsciiString 46992
io/netty/handler/codec/DefaultHeaders 44421
io/netty/handler/codec/http2/HpackHuffmanDecoder 42858
io/netty/channel/AbstractChannelHandlerContext 42071
io/netty/channel/epoll/EpollSocketChannelConfig 37770
io/netty/handler/codec/http/HttpHeaders 36864
io/netty/handler/codec/http2/Http2Headers 35703
io/netty/handler/codec/EmptyHeaders 33920
io/netty/channel/epoll/LinuxSocket 33907
io/netty/handler/codec/stomp/StompHeaders 33769
io/netty/channel/unix/Socket 33516
io/netty/buffer/ByteBufUtil 33414
io/netty/handler/codec/spdy/SpdyHeaders 33147
io/netty/handler/codec/http2/AbstractHttp2StreamChannel 32844
io/netty/handler/codec/compression/Bzip2DivSufSort 31799
io/netty/resolver/dns/DnsNameResolver 31177
io/netty/channel/epoll/EpollDatagramChannelConfig 31022
io/netty/channel/kqueue/KQueueSocketChannelConfig 30826
io/netty/handler/codec/Headers 30648
io/netty/channel/DefaultChannelProgressivePromise 30418
io/netty/buffer/UnpooledDirectByteBuf 28109
io/netty/channel/kqueue/KQueueDatagramChannelConfig 27738
io/netty/buffer/UnpooledHeapByteBuf 27556
io/netty/channel/AbstractChannel 27455
io/netty/util/concurrent/SingleThreadEventExecutor 27356
io/netty/util/concurrent/DefaultPromise 27270
io/netty/handler/codec/http/multipart/MixedAttribute 26835
io/netty/handler/ssl/SslContext 26664
io/netty/buffer/ReadOnlyByteBufferBuf 26298
io/netty/channel/epoll/EpollServerSocketChannelConfig 26281
io/netty/buffer/ReadOnlyByteBuf 26239
io/netty/buffer/AbstractUnpooledSlicedByteBuf 26169
io/netty/handler/codec/http/multipart/MixedFileUpload 25786
io/netty/channel/kqueue/KQueueServerSocketChannelConfig 25341
io/netty/channel/ChannelPipeline 25197
io/netty/channel/VoidChannelPromise 24683
io/netty/buffer/FixedCompositeByteBuf 24598
io/netty/buffer/PooledSlicedByteBuf 24420
io/netty/handler/codec/http2/Http2ConnectionHandler 23984
io/netty/buffer/DuplicatedByteBuf 23749
io/netty/channel/socket/oio/DefaultOiosocketChannelConfig 23706
io/netty/channel/epoll/EpollDomainSocketChannelConfig 23440
io/netty/channel/kqueue/KQueueDomainSocketChannelConfig 23440
io/netty/channel/DelegatingChannelPromiseNotifier 23057
io/netty/handler/codec/dns/DatagramDnsResponse 23025
io/netty/buffer/PooledDuplicatedByteBuf 22781
io/netty/buffer/UnsafeByteBufUtil 22484
io/netty/handler/codec/http/DefaultFullHttpResponse 22463
io/netty/handler/codec/http/DefaultFullHttpRequest 22438
io/netty/buffer/Unpooled 22029
io/netty/channel/epoll/AbstractEpollStreamChannel 21260
io/netty/handler/codec/memcache/binary/DefaultFullBinaryMemcacheRequest 21241
io/netty/handler/codec/memcache/binary/DefaultFullBinaryMemcacheResponse 21241
io/netty/handler/codec/http/multipart/DiskAttribute 21193
io/netty/channel/epoll/EpollDatagramChannel 21003
io/netty/channel/epoll/EpollServerChannelConfig 20833
io/netty/channel/group/DefaultChannelGroupFuture 20596
io/netty/buffer/PoolArena 20507
io/netty/buffer/PooledByteBufAllocator 20418
io/netty/channel/socket/nio/NioDatagramChannel 20330
io/netty/resolver/dns/DnsResolveContext 20235
io/netty/channel/CombinedChannelDuplexHandler$DelegatingChannelHandlerContext 20184
io/netty/handler/codec/http/HttpObjectAggregator$AggregatedFullHttpRequest 20147
io/netty/handler/codec/http/multipart/HttpPostRequestEncoder$WrappedFullHttpRequest 20147
io/netty/channel/kqueue/KQueueServerChannelConfig 20094
io/netty/channel/socket/oio/DefaultOioDatagramChannelConfig 19972
io/netty/handler/codec/dns/DatagramDnsQuery 19966
io/netty/handler/codec/http/DefaultHttpHeaders 19670
io/netty/handler/codec/http/multipart/HttpPostMultipartRequestDecoder 19625
io/netty/channel/udt/DefaultUdtServerChannelConfig 19592
io/netty/channel/socket/nio/NioSocketChannel 19469
io/netty/handler/codec/http/multipart/DiskFileUpload 19160
io/netty/channel/socket/DefaultSocketChannelConfig 18991
io/netty/handler/codec/http2/DefaultHttp2FrameReader 18961
io/netty/util/NetUtil 18834
io/netty/handler/codec/http/HttpObjectAggregator$AggregatedFullHttpResponse 18785
io/netty/buffer/SlicedByteBuf 18552
io/netty/channel/ChannelOutboundBuffer 18487
io/netty/handler/codec/dns/AbstractDnsMessage 18359
io/netty/channel/kqueue/AbstractKQueueChannel 18138
io/netty/channel/socket/DefaultDatagramChannelConfig 17845
io/netty/channel/epoll/AbstractEpollChannel 17542
io/netty/handler/codec/http2/AbstractHttp2ConnectionHandlerBuilder 17488
io/netty/handler/codec/http/multipart/MemoryAttribute 17265
io/netty/handler/codec/http2/Http2MultiplexCodecBuilder 17259
io/netty/buffer/UnpooledUnsafeDirectByteBuf 17021
io/netty/channel/socket/oio/DefaultOioServerSocketChannelConfig 17005
io/netty/handler/traffic/GlobalChannelTrafficShapingHandler 16992
io/netty/util/collection/LongObjectHashMap 16987
io/netty/util/collection/ByteObjectHashMap 16965
io/netty/util/collection/CharObjectHashMap 16965
io/netty/util/collection/IntObjectHashMap 16965
io/netty/util/collection/ShortObjectHashMap 16965
io/netty/handler/codec/http/multipart/HttpPostRequestEncoder 16813
io/netty/channel/DefaultChannelPromise 16792
io/netty/handler/codec/http/multipart/MemoryFileUpload 16697
io/netty/channel/group/DefaultChannelGroup 16695
io/netty/buffer/PooledUnsafeDirectByteBuf 16682
io/netty/bootstrap/AbstractBootstrap 16663
io/netty/channel/AbstractChannel$AbstractUnsafe 16652
io/netty/buffer/PooledDirectByteBuf 16472
io/netty/handler/codec/http2/Http2FrameCodecBuilder 16446
io/netty/channel/socket/oio/OioSocketChannel 16411
io/netty/handler/codec/http/HttpObjectAggregator$AggregatedFullHttpMessage 16390
io/netty/channel/nio/NioEventLoop 16349
io/netty/handler/codec/http2/DefaultHttp2DataFrame 16345
io/netty/handler/traffic/AbstractTrafficShapingHandler 16223
io/netty/channel/kqueue/KQueueDatagramChannel 15983
io/netty/channel/udt/DefaultUdtChannelConfig 15837
io/netty/channel/socket/oio/OioDatagramChannel 15827
io/netty/handler/codec/http/HttpObjectDecoder 15782
io/netty/handler/codec/http/CombinedHttpHeaders$CombinedHttpHeadersImpl 15563
io/netty/handler/codec/stomp/DefaultStompFrame 15488
io/netty/handler/codec/haproxy/HAProxyMessage 15454
io/netty/channel/rxtx/DefaultRxtxChannelConfig 15348
io/netty/handler/timeout/IdleStateHandler 15315
io/netty/handler/codec/http2/DefaultHttp2FrameWriter 15246
io/netty/handler/proxy/ProxyHandler 15199
io/netty/buffer/PoolChunk 15106
io/netty/buffer/UnpooledUnsafeHeapByteBuf 14944
io/netty/handler/codec/spdy/SpdyCodecUtil 14918
io/netty/handler/codec/dns/DefaultDnsResponse 14834
io/netty/channel/local/LocalChannel 14796
io/netty/buffer/PooledHeapByteBuf 14722
io/netty/util/concurrent/AbstractEventExecutor 14710
io/netty/handler/codec/redis/FullBulkStringRedisMessage 14691
io/netty/channel/EventLoop 14662
io/netty/handler/codec/mqtt/MqttDecoder 14552
io/netty/handler/codec/mqtt/MqttEncoder 14532
io/netty/handler/codec/http2/DefaultHttp2RemoteFlowController 14472
io/netty/util/concurrent/AbstractScheduledEventExecutor 14453
io/netty/handler/codec/http2/Http2FrameCodec 14430
io/netty/handler/codec/http2/AbstractHttp2StreamChannel$Http2ChannelUnsafe 14386
io/netty/handler/codec/CharSequenceValueConverter 14370
io/netty/util/concurrent/DefaultProgressivePromise 14281
io/netty/handler/codec/http2/DefaultHttp2UnknownFrame 14266
io/netty/channel/group/VoidChannelGroupFuture 14250
io/netty/handler/codec/redis/FullBulkStringRedisMessage$1 14177
io/netty/channel/sctp/oio/OioSctpChannel 14130
io/netty/channel/kqueue/AbstractKQueueStreamChannel 14089
io/netty/handler/logging/LoggingHandler 14055
io/netty/handler/codec/http2/WeightedFairQueueByteDistributor$State 14037
io/netty/channel/sctp/nio/NioSctpChannel 14029
io/netty/channel/DefaultChannelConfig 13934
io/netty/handler/codec/http/websocketx/CloseWebSocketFrame 13926
io/netty/handler/codec/redis/FullBulkStringRedisMessage$2 13863
io/netty/handler/codec/http2/DefaultHttp2ConnectionEncoder 13837
io/netty/util/concurrent/UnorderedThreadPoolEventExecutor 13813
io/netty/resolver/dns/DnsNameResolverBuilder 13749
io/netty/handler/codec/spdy/SpdyFrameCodec 13546
io/netty/handler/traffic/TrafficCounter 13397
io/netty/handler/codec/http/multipart/AbstractDiskHttpData 13319
io/netty/handler/codec/http/ComposedLastHttpContent 13270
io/netty/handler/codec/http/websocketx/WebSocketServerProtocolHandler 13208
io/netty/handler/codec/http/LastHttpContent$1 13200
io/netty/handler/ssl/JdkSslEngine 13142
io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker 13100
io/netty/channel/pool/SimpleChannelPool 13051
io/netty/channel/CombinedChannelDuplexHandler 13010
io/netty/util/concurrent/OrderedEventExecutor 12993
io/netty/channel/epoll/Native 12962
io/netty/handler/codec/http/ReadOnlyHttpHeaders 12899
io/netty/util/concurrent/EventExecutor 12893
io/netty/util/concurrent/NonStickyEventExecutorGroup 12784
io/netty/channel/epoll/EpollEventLoop 12673
io/netty/buffer/PooledByteBuf 12672
io/netty/channel/sctp/DefaultSctpChannelConfig 12655
io/netty/handler/codec/memcache/binary/AbstractBinaryMemcacheMessage 12648
io/netty/channel/sctp/DefaultSctpServerChannelConfig 12529
io/netty/handler/codec/http/websocketx/TextWebSocketFrame 12356
io/netty/handler/codec/http2/DefaultHttp2LocalFlowController 12280
io/netty/handler/codec/http/DefaultLastHttpContent 12248
io/netty/handler/codec/MessageAggregator 12206
io/netty/handler/codec/memcache/LastMemcacheContent$1 12190
io/netty/handler/codec/stomp/LastStompContentSubframe$1 12190
io/netty/channel/group/ChannelGroupFuture 12130
io/netty/handler/codec/http2/HpackEncoder 12118
io/netty/channel/unix/FileDescriptor 12084
io/netty/handler/codec/http/websocketx/ContinuationWebSocketFrame 12021
io/netty/handler/codec/http/multipart/HttpPostStandardRequestDecoder 11945
io/netty/channel/EventLoopGroup 11931
io/netty/handler/codec/http2/DefaultHttp2GoAwayFrame 11919
io/netty/channel/nio/AbstractNioChannel 11880
io/netty/handler/codec/http2/DefaultHttp2Connection$DefaultEndpoint 11822
io/netty/handler/codec/dns/DefaultDnsQuery 11768
io/netty/handler/codec/http/HttpUtil 11744
io/netty/channel/group/ChannelGroup 11710
io/netty/handler/codec/http2/DefaultHttp2ConnectionDecoder 11695
io/netty/handler/codec/spdy/DefaultSpdyDataFrame 11615
io/netty/channel/epoll/EpollTcpInfo 11596
io/netty/handler/codec/smtp/DefaultLastSmtpContent 11592
io/netty/handler/codec/http2/DefaultHttp2Connection 11578
io/netty/handler/codec/spdy/SpdySessionHandler 11551
io/netty/channel/pool/FixedChannelPool 11515
io/netty/handler/codec/redis/LastBulkStringRedisContent$1 11499
io/netty/handler/codec/smtp/LastSmtpContent$1 11499
io/netty/handler/codec/base64/Base64 11485
io/netty/channel/socket/DefaultServerSocketChannelConfig 11457
io/netty/handler/codec/http2/Http2ConnectionHandlerBuilder 11385
io/netty/channel/sctp/SctpMessage 11341
io/netty/util/HashedWheelTimer 11301
io/netty/handler/codec/http2/DefaultHttp2Headers 11261
io/netty/handler/ssl/JdkSslContext 11258
io/netty/util/concurrent/AbstractEventExecutorGroup 11234
io/netty/handler/codec/DateFormatter 11195
io/netty/buffer/ByteBufInputStream 11147
io/netty/channel/epoll/EpollChannelConfig 11131
io/netty/util/internal/DefaultPriorityQueue 11057
io/netty/channel/sctp/oio/OioSctpServerChannel 11020
io/netty/handler/codec/stomp/DefaultLastStompContentSubframe 10991
io/netty/handler/codec/http/websocketx/PingWebSocketFrame 10956
io/netty/channel/sctp/nio/NioSctpServerChannel 10955
io/netty/handler/codec/http/websocketx/BinaryWebSocketFrame 10954
io/netty/handler/codec/http/websocketx/PongWebSocketFrame 10954
io/netty/handler/codec/http/multipart/AbstractHttpData 10883
io/netty/bootstrap/Bootstrap 10861
io/netty/buffer/AbstractByteBufAllocator 10758
io/netty/handler/codec/http2/HttpToHttp2ConnectionHandlerBuilder 10750
io/netty/buffer/AbstractUnsafeSwappedByteBuf 10679
io/netty/handler/codec/serialization/ObjectDecoderInputStream 10668
io/netty/handler/codec/http/HttpObjectAggregator 10658
io/netty/handler/codec/memcache/DefaultLastMemcacheContent 10643
io/netty/handler/codec/http/websocketx/WebSocketClientProtocolHandler 10614
io/netty/channel/kqueue/KQueueChannelConfig 10601
io/netty/handler/codec/http2/HpackDecoder 10599
io/netty/handler/codec/haproxy/HAProxyMessageDecoder 10598
io/netty/channel/kqueue/KQueueEventLoop 10566
io/netty/util/concurrent/EventExecutorGroup 10464
io/netty/handler/codec/ByteToMessageDecoder 10360
io/netty/handler/codec/mqtt/MqttPublishMessage 10360
io/netty/handler/codec/compression/Snappy 10359
io/netty/handler/codec/redis/DefaultLastBulkStringRedisContent 10274
io/netty/handler/ssl/ExtendedOpenSslSession 10197
io/netty/util/concurrent/ScheduledFutureTask 10144
io/netty/handler/codec/haproxy/HAProxyTLV 10140
io/netty/handler/codec/http/HttpResponseStatus 10131
io/netty/channel/socket/nio/NioServerSocketChannel 10098
io/netty/handler/codec/http2/DefaultHttp2ConnectionDecoder$FrameReadListener 10057
io/netty/channel/udt/nio/NioUdtByteConnectorChannel 10032
io/netty/handler/codec/http/EmptyHttpHeaders 10011
io/netty/channel/AbstractCoalescingBufferQueue 10001
io/netty/handler/codec/dns/DefaultDnsRawRecord 9993
io/netty/handler/codec/http/multipart/HttpData 9913
io/netty/channel/udt/nio/NioUdtMessageConnectorChannel 9892
io/netty/handler/codec/compression/Lz4FrameEncoder 9891
io/netty/handler/codec/http2/HttpConversionUtil 9734
io/netty/handler/codec/spdy/SpdySession 9717
io/netty/channel/socket/DatagramPacket 9670
io/netty/buffer/PooledUnsafeHeapByteBuf 9650
io/netty/handler/codec/http/QueryStringDecoder 9547
io/netty/channel/socket/oio/OioServerSocketChannel 9508
io/netty/handler/codec/http/multipart/AbstractMemoryHttpData 9457
io/netty/buffer/SimpleLeakAwareByteBuf 9449
io/netty/handler/codec/compression/JdkZlibEncoder 9443
io/netty/handler/codec/http/DefaultHttpContent 9434
io/netty/util/ResourceLeakDetector 9429
io/netty/channel/udt/nio/NioUdtAcceptorChannel 9317
io/netty/handler/codec/http2/DefaultHttp2Connection$DefaultStream 9274
io/netty/channel/rxtx/RxtxChannelConfig 9260
io/netty/channel/socket/DatagramChannelConfig 9252
io/netty/handler/ssl/CipherSuiteConverter 9248
io/netty/channel/udt/UdtChannelConfig 9244
io/netty/handler/codec/http/cookie/DefaultCookie 9236
io/netty/channel/kqueue/AbstractKQueueChannel$AbstractKQueueUnsafe 9197
io/netty/buffer/AbstractDerivedByteBuf 9190
io/netty/handler/codec/http/cors/CorsHandler 9179
io/netty/channel/epoll/AbstractEpollChannel$AbstractEpollUnsafe 9149
io/netty/handler/codec/http2/DefaultHttp2RemoteFlowController$FlowState 9080
io/netty/handler/codec/compression/JdkZlibDecoder 9073
io/netty/handler/codec/http/HttpContentEncoder 9070
io/netty/channel/epoll/EpollDomainSocketChannel 9015
io/netty/handler/codec/http2/Http2Settings 9013
io/netty/handler/codec/http/websocketx/WebSocketFrame 9003
io/netty/bootstrap/ServerBootstrap 8981
io/netty/channel/ChannelConfig 8945
io/netty/handler/codec/http2/WeightedFairQueueByteDistributor 8929
io/netty/handler/codec/http/multipart/InternalAttribute 8907
io/netty/channel/ThreadPerChannelEventLoopGroup 8818
io/netty/handler/codec/http/multipart/DefaultHttpDataFactory 8796
io/netty/handler/codec/memcache/DefaultMemcacheContent 8757
io/netty/handler/codec/stomp/DefaultStompContentSubframe 8687
io/netty/handler/codec/compression/JZlibEncoder 8665
io/netty/handler/ssl/SslClientHelloHandler 8627
io/netty/channel/socket/SocketChannelConfig 8602
io/netty/handler/traffic/GlobalTrafficShapingHandler 8585
io/netty/handler/codec/http2/Http2FrameLogger 8581
io/netty/handler/codec/http2/Http2MultiplexHandler 8467
io/netty/buffer/PoolThreadCache 8436
io/netty/channel/nio/AbstractNioByteChannel 8384
io/netty/channel/DefaultChannelPipeline$HeadContext 8382
io/netty/buffer/UnpooledSlicedByteBuf 8363
io/netty/handler/flush/FlushConsolidationHandler 8342
io/netty/util/Recycler 8339
io/netty/handler/pcap/PcapWriteHandler 8296
io/netty/channel/kqueue/KQueueDomainSocketChannel 8287
io/netty/channel/rxtx/RxtxChannel 8217
io/netty/handler/codec/http/DefaultCookie 8118
io/netty/resolver/dns/DnsQueryContext 8117
io/netty/handler/codec/redis/RedisDecoder 8081
io/netty/channel/unix/PreferredDirectByteBufAllocator 8039
io/netty/util/concurrent/PromiseTask 8031
io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker 8026
io/netty/handler/codec/memcache/binary/DefaultBinaryMemcacheRequest 8017
io/netty/handler/codec/memcache/binary/DefaultBinaryMemcacheResponse 8017
io/netty/handler/codec/redis/DefaultBulkStringRedisContent 8013
io/netty/channel/CompleteChannelFuture 8009
io/netty/handler/codec/http2/Http2MultiplexCodec 8007
io/netty/handler/codec/UnsupportedValueConverter 7998
io/netty/handler/stream/ChunkedWriteHandler 7993
io/netty/handler/codec/http/websocketx/WebSocketServerProtocolConfig$Builder 7977
io/netty/buffer/PoolArenaMetric 7967
io/netty/resolver/dns/UnixResolverDnsServerAddressStreamProvider 7966
io/netty/handler/codec/dns/DnsMessage 7963
io/netty/channel/ChannelOutboundInvoker 7951
io/netty/buffer/UnpooledDuplicatedByteBuf 7931
io/netty/buffer/UnreleasableByteBuf 7908
io/netty/util/internal/PriorityQueue 7897
io/netty/util/internal/ReferenceCountUpdater 7894
io/netty/handler/codec/http/multipart/HttpPostRequestDecoder 7870
io/netty/channel/local/LocalServerChannel 7859
io/netty/channel/kqueue/KQueueEventArray 7841
io/netty/handler/codec/http/cors/CorsConfigBuilder 7828
io/netty/handler/codec/mqtt/MqttMessageBuilders$ConnAckPropertiesBuilder 7815
io/netty/buffer/DefaultByteBufHolder 7801
io/netty/buffer/AbstractPooledDerivedByteBuf 7798
io/netty/buffer/SizeClasses 7798
io/netty/handler/codec/http2/Http2Exception 7797
io/netty/channel/DefaultFileRegion 7794
io/netty/util/concurrent/FastThreadLocal 7787
io/netty/handler/proxy/HttpProxyHandler$HttpClientCodecWrapper 7782
io/netty/buffer/PoolSubpage 7779
io/netty/util/concurrent/GlobalEventExecutor 7773
io/netty/util/concurrent/MultithreadEventExecutorGroup 7758
io/netty/handler/codec/http2/Http2StreamFrameToHttpObjectCodec 7747
io/netty/channel/PreferHeapByteBufAllocator 7732
io/netty/channel/kqueue/BsdSocket 7719
io/netty/util/internal/AppendableCharSequence 7681
io/netty/handler/codec/http/websocketx/WebSocketClientProtocolConfig$Builder 7668
io/netty/handler/codec/http/Cookie 7663
io/netty/channel/socket/oio/OioSocketChannelConfig 7639
io/netty/channel/socket/oio/OioDatagramChannelConfig 7638
io/netty/buffer/HeapByteBufUtil 7633
io/netty/channel/SingleThreadEventLoop 7630
io/netty/handler/codec/memcache/binary/BinaryMemcacheMessage 7630
io/netty/handler/codec/serialization/ObjectEncoderOutputStream 7628
io/netty/handler/codec/smtp/DefaultSmtpContent 7623
io/netty/handler/codec/http2/Http2EventAdapter 7617
io/netty/channel/udt/UdtMessage 7607
io/netty/handler/codec/http/cors/CorsConfig 7600
io/netty/handler/ssl/DefaultOpenSslKeyMaterial 7596
io/netty/buffer/AbstractReferenceCountedByteBuf 7564
io/netty/channel/socket/nio/NioDatagramChannelConfig 7556
io/netty/util/collection/ByteCollections$UnmodifiableMap 7555
io/netty/util/collection/CharCollections$UnmodifiableMap 7555
io/netty/util/collection/IntCollections$UnmodifiableMap 7555
io/netty/util/collection/LongCollections$UnmodifiableMap 7555
io/netty/util/collection/ShortCollections$UnmodifiableMap 7555
io/netty/handler/codec/redis/RedisEncoder 7545
io/netty/handler/codec/http2/Http2Flags 7520
io/netty/resolver/dns/DnsNameResolver$AddressedEnvelopeAdapter 7514
io/netty/handler/codec/http2/InboundHttp2ToHttpAdapter 7509
io/netty/handler/codec/http/websocketx/WebSocketClientProtocolConfig 7418
io/netty/channel/epoll/EpollSocketChannel 7323
io/netty/buffer/ByteBufAllocator 7318
io/netty/handler/codec/http/HttpContentDecoder 7316
io/netty/channel/udt/UdtServerChannelConfig 7310
io/netty/handler/codec/dns/DnsResponse 7309
io/netty/handler/codec/http/websocketx/WebSocketProtocolHandler 7293
io/netty/util/collection/ByteCollections$EmptyMap 7276
io/netty/util/collection/CharCollections$EmptyMap 7276
io/netty/util/collection/IntCollections$EmptyMap 7276
io/netty/util/collection/LongCollections$EmptyMap 7276
io/netty/util/collection/ShortCollections$EmptyMap 7276
io/netty/handler/codec/http2/EmptyHttp2Headers 7268
io/netty/handler/codec/mqtt/MqttMessageBuilders$ConnectBuilder 7262
io/netty/channel/PendingWriteQueue 7231
io/netty/buffer/PoolChunkList 7203
io/netty/handler/codec/spdy/SpdyHttpDecoder 7181
io/netty/handler/codec/CodecOutputList 7178
io/netty/handler/codec/http2/MaxCapacityQueue 7170
io/netty/channel/DefaultChannelId 7102
io/netty/handler/codec/http/HttpVersion 7095
io/netty/handler/codec/http/cookie/CookieUtil 7052
io/netty/channel/ChannelHandlerContext 7008
io/netty/handler/codec/http/HttpClientCodec 6982
io/netty/channel/socket/DatagramChannel 6980
io/netty/buffer/ByteBufOutputStream 6948
io/netty/handler/codec/LengthFieldBasedFrameDecoder 6873
io/netty/util/concurrent/PromiseCombiner 6868
io/netty/handler/codec/http2/Http2CodecUtil 6845
io/netty/buffer/SimpleLeakAwareCompositeByteBuf 6844
io/netty/util/concurrent/CompleteFuture 6720
io/netty/handler/codec/http/websocketx/WebSocket08FrameDecoder 6719
io/netty/channel/epoll/EpollServerDomainSocketChannel 6715
io/netty/handler/codec/ValueConverter 6710
io/netty/channel/Channel 6683
io/netty/handler/codec/http2/Http2Stream 6679
io/netty/handler/codec/http2/StreamBufferingEncoder 6677
io/netty/channel/sctp/SctpChannelConfig 6676
io/netty/channel/sctp/SctpServerChannelConfig 6676
io/netty/handler/codec/http2/DefaultHttp2LocalFlowController$DefaultState 6656
io/netty/channel/epoll/EpollServerSocketChannel 6627
io/netty/handler/codec/spdy/DefaultSpdySynStreamFrame 6626
io/netty/handler/codec/spdy/DefaultSpdySettingsFrame 6601
io/netty/handler/codec/http/QueryStringEncoder 6583
io/netty/channel/oio/AbstractOioByteChannel 6581
io/netty/channel/DefaultAddressedEnvelope 6569
io/netty/handler/proxy/HttpProxyHandler 6564
io/netty/handler/codec/http2/Http2FrameCodec$FrameListener 6555
io/netty/channel/AbstractEventLoop 6544
io/netty/handler/codec/http2/Http2CodecUtil$SimpleChannelPromiseAggregator 6517
io/netty/handler/codec/http2/Http2StreamChannelBootstrap 6504
io/netty/handler/codec/http/websocketx/WebSocketFrameAggregator 6486
io/netty/channel/epoll/EpollEventLoopGroup 6467
io/netty/channel/unix/IovArray 6461
io/netty/channel/kqueue/KQueueEventLoopGroup 6460
io/netty/handler/codec/stomp/StompSubframeAggregator 6460
io/netty/channel/nio/NioEventLoopGroup 6453
io/netty/handler/codec/DatagramPacketEncoder 6445
io/netty/resolver/dns/DnsServerAddresses 6436
io/netty/handler/codec/http/HttpObjectEncoder 6431
io/netty/handler/codec/spdy/SpdySession$StreamState 6408
io/netty/handler/codec/redis/RedisBulkStringAggregator 6386
io/netty/handler/proxy/Socks5ProxyHandler 6381
io/netty/handler/codec/DelimiterBasedFrameDecoder 6367
io/netty/handler/stream/ChunkedNioFile 6365
io/netty/channel/kqueue/KQueueServerDomainSocketChannel 6364
io/netty/handler/codec/http2/DefaultHttp2ConnectionDecoder$PrefaceFrameListener 6359
io/netty/handler/codec/http2/Http2Connection$Endpoint 6359
io/netty/handler/codec/http/HttpClientUpgradeHandler 6327
io/netty/handler/stream/ChunkedFile 6324
io/netty/handler/codec/http2/CompressorHttp2ConnectionEncoder 6246
io/netty/handler/codec/http2/Http2OutboundFrameLogger 6236
io/netty/util/collection/ByteObjectMap 6213
io/netty/util/collection/CharObjectMap 6213
io/netty/util/collection/IntObjectMap 6213
io/netty/util/collection/LongObjectMap 6213
io/netty/util/collection/ShortObjectMap 6213
io/netty/handler/codec/compression/Bzip2Encoder 6201
io/netty/handler/codec/dns/DnsRecordType 6175
io/netty/handler/codec/smtp/SmtpRequests 6138
io/netty/handler/ssl/JdkAlpnSslEngine 6110
io/netty/channel/epoll/AbstractEpollServerChannel 6099
io/netty/channel/kqueue/Native 6090
io/netty/util/concurrent/Future 6036
io/netty/channel/socket/ServerSocketChannelConfig 6026
io/netty/channel/socket/oio/OioServerSocketChannelConfig 6026
io/netty/handler/codec/compression/Bzip2Rand 5969
io/netty/handler/codec/http2/DelegatingDecompressorFrameListener 5950
io/netty/handler/codec/http2/HpackUtil 5950
io/netty/util/Version 5950
io/netty/handler/codec/http2/DecoratingHttp2FrameWriter 5930
io/netty/handler/codec/http2/DefaultHttp2HeadersDecoder 5902
io/netty/handler/codec/base64/Base64Dialect 5894
io/netty/handler/codec/http2/Http2InboundFrameLogger$1 5883
io/netty/channel/kqueue/KQueueServerSocketChannel 5856
io/netty/util/concurrent/ImmediateEventExecutor 5850
io/netty/handler/codec/serialization/ReferenceMap 5844
io/netty/channel/kqueue/KQueueSocketChannel 5836
io/netty/util/Recycler$Stack 5827
io/netty/handler/ssl/DelegatingSslContext 5784
io/netty/handler/codec/DatagramPacketDecoder 5760
io/netty/handler/codec/http/cors/CorsConfig$Builder 5756
io/netty/channel/kqueue/AbstractKQueueServerChannel 5750
io/netty/util/Signal 5747
io/netty/handler/codec/http2/Http2Connection 5726
io/netty/util/HashedWheelTimer$HashedWheelTimeout 5726
io/netty/handler/codec/http/HttpServerUpgradeHandler$UpgradeEvent 5709
io/netty/channel/DefaultMaxBytesRecvByteBufAllocator$HandleImpl 5706
io/netty/bootstrap/FailedChannel 5705
io/netty/handler/codec/http2/Http2ServerUpgradeCodec 5704
io/netty/handler/codec/http/multipart/HttpPostRequestEncoder$WrappedHttpRequest 5698
io/netty/buffer/AbstractPooledDerivedByteBuf$PooledNonRetainedSlicedByteBuf 5695
io/netty/buffer/ByteBufUtil$HexUtil 5643
io/netty/buffer/AbstractPooledDerivedByteBuf$PooledNonRetainedDuplicateByteBuf 5640
io/netty/buffer/UnpooledByteBufAllocator 5633
io/netty/resolver/dns/DnsAddressResolveContext 5625
io/netty/handler/codec/stomp/StompSubframeDecoder 5613
io/netty/channel/ChannelFlushPromiseNotifier 5596
io/netty/handler/codec/http/websocketx/WebSocketServerProtocolConfig 5585
io/netty/handler/codec/ByteToMessageCodec 5557
io/netty/handler/codec/http2/Http2FrameListenerDecorator 5546
io/netty/handler/codec/http/DefaultHttpRequest 5543
io/netty/util/ReferenceCountUtil 5538
io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker00 5535
io/netty/resolver/dns/DefaultDnsCache 5501
io/netty/handler/ssl/JdkAlpnApplicationProtocolNegotiator 5488
io/netty/util/concurrent/DefaultThreadFactory 5487
io/netty/channel/DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle 5465
io/netty/resolver/AbstractAddressResolver 5438
io/netty/channel/kqueue/KQueueStaticallyReferencedJniMethods 5419
io/netty/handler/codec/compression/ZlibCodecFactory 5415
io/netty/channel/Channel$Unsafe 5391
io/netty/handler/codec/compression/FastLz 5387
io/netty/handler/codec/http/cookie/Cookie 5383
io/netty/handler/codec/http/websocketx/WebSocketCloseStatus 5348
io/netty/handler/codec/spdy/SpdyFrameEncoder 5316
io/netty/handler/codec/http2/Http2FrameAdapter 5288
io/netty/channel/DefaultMaxBytesRecvByteBufAllocator 5286
io/netty/channel/kqueue/NativeLongArray 5284
io/netty/buffer/ReadOnlyUnsafeDirectByteBuf 5277
io/netty/handler/ssl/JdkSslClientContext 5277
io/netty/handler/codec/DefaultHeaders$HeaderEntry 5273
io/netty/resolver/dns/Cache 5265
io/netty/handler/codec/http2/DefaultHttp2RemoteFlowController$WritabilityMonitor 5261
io/netty/handler/codec/spdy/DefaultSpdyHeadersFrame 5254
io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker08 5250
io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker07 5247
io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker13 5247
io/netty/handler/codec/http/HttpServerUpgradeHandler 5222
io/netty/handler/codec/http2/DefaultHttp2HeadersFrame 5213
io/netty/handler/codec/http2/Http2ClientUpgradeCodec 5208
io/netty/util/concurrent/NonStickyEventExecutorGroup$NonStickyOrderedEventExecutor 5187
io/netty/handler/codec/mqtt/MqttConnectVariableHeader 5184
io/netty/handler/codec/http2/ReadOnlyHttp2Headers$ReadOnlyIterator 5178
io/netty/handler/codec/compression/Bzip2HuffmanStageEncoder 5171
io/netty/handler/codec/compression/LzmaFrameEncoder 5165
io/netty/buffer/PooledByteBufAllocatorMetric 5133
io/netty/handler/codec/compression/Crc32c 5130
io/netty/channel/DefaultChannelPipeline$TailContext 5122
io/netty/handler/codec/http/websocketx/Utf8Validator 5119
io/netty/handler/codec/dns/DefaultDnsRecordEncoder 5118
io/netty/resolver/dns/InflightNameResolver 5111
io/netty/channel/epoll/NativeStaticallyReferencedJniMethods 5104
io/netty/channel/unix/ErrorsStaticallyReferencedJniMethods 5096
io/netty/handler/codec/http/ReadOnlyHttpHeaders$ReadOnlyStringIterator 5094
io/netty/handler/codec/http/ReadOnlyHttpHeaders$ReadOnlyIterator 5093
io/netty/resolver/dns/DnsRecordResolveContext 5087
io/netty/handler/ssl/JdkNpnApplicationProtocolNegotiator 5079
io/netty/channel/ChannelPromise 5068
io/netty/channel/nio/AbstractNioChannel$AbstractNioUnsafe 5067
io/netty/handler/flow/FlowControlHandler 5066
io/netty/handler/codec/http2/DefaultHttp2PushPromiseFrame 5060
io/netty/handler/codec/http/multipart/FileUpload 5054
io/netty/handler/codec/spdy/SpdyFrameDecoderDelegate 5054
io/netty/channel/AbstractEventLoopGroup 5053
io/netty/channel/udt/nio/NioUdtProvider 5048
io/netty/handler/codec/http/websocketx/extensions/compression/DeflateDecoder 5034
io/netty/util/AbstractReferenceCounted 5015
io/netty/handler/codec/memcache/AbstractMemcacheObjectAggregator 5001
io/netty/handler/codec/http2/DefaultHttp2RemoteFlowController$ListenerWritabilityMonitor 4995
io/netty/handler/codec/compression/LzfEncoder 4958
io/netty/handler/codec/compression/Bzip2BlockCompressor 4951
io/netty/handler/codec/http/CookieDecoder 4947
io/netty/handler/codec/spdy/SpdyFrameDecoder 4936
io/netty/channel/socket/nio/NioSocketChannel$NioSocketChannelConfig 4931
io/netty/channel/MultithreadEventLoopGroup 4929
io/netty/util/DomainNameMappingBuilder$ImmutableDomainNameMapping 4928
io/netty/handler/codec/http/cookie/ClientCookieDecoder$CookieBuilder 4913
io/netty/handler/codec/http2/DefaultHttp2LocalFlowController$2 4891
io/netty/handler/traffic/ChannelTrafficShapingHandler 4882
io/netty/handler/codec/http2/DefaultHttp2HeadersEncoder 4876
io/netty/handler/codec/redis/ArrayRedisMessage$1 4871
io/netty/handler/codec/mqtt/MqttConnectPayload 4857
io/netty/channel/kqueue/KQueueRecvByteAllocatorHandle 4839
io/netty/util/ResourceLeakDetector$DefaultResourceLeak 4836
io/netty/buffer/CompositeByteBuf$Component 4819
io/netty/handler/codec/http/HttpMessageUtil 4815
io/netty/handler/codec/http/DefaultHttpResponse 4784
io/netty/handler/codec/http/websocketx/WebSocketDecoderConfig 4776
io/netty/util/concurrent/Promise 4760
io/netty/handler/codec/http2/Http2FrameListener 4754
io/netty/handler/codec/http/HttpStatusClass 4750
io/netty/util/Recycler$WeakOrderQueue 4748
io/netty/channel/ChannelProgressivePromise 4747
io/netty/channel/unix/DomainSocketChannelConfig 4744
io/netty/handler/codec/http2/HpackStaticTable 4741
io/netty/handler/codec/http2/Http2FrameWriter 4741
io/netty/handler/codec/http2/Http2ConnectionHandler$PrefaceDecoder 4738
io/netty/handler/codec/http/multipart/InterfaceHttpPostRequestDecoder 4735
io/netty/handler/codec/dns/DnsQuery 4733
io/netty/handler/codec/http2/Http2GoAwayFrame 4733
io/netty/util/DomainNameMapping 4725
io/netty/util/concurrent/FastThreadLocalThread 4718
io/netty/handler/codec/dns/AbstractDnsRecord 4715
io/netty/handler/codec/http2/UniformStreamByteDistributor 4711
io/netty/handler/ssl/JdkSslServerContext 4702
io/netty/resolver/dns/DnsResolveContext$AuthoritativeNameServerList 4702
io/netty/channel/pool/AbstractChannelPoolMap 4683
io/netty/handler/stream/ChunkedNioStream 4681
io/netty/channel/RecvByteBufAllocator$DelegatingHandle 4680
io/netty/handler/codec/socksx/v5/Socks5CommandStatus 4674
io/netty/handler/ipfilter/IpSubnetFilterRule 4674
io/netty/handler/codec/dns/DnsResponseCode 4641
io/netty/handler/codec/http2/DefaultHttp2Connection$ConnectionStream 4640
io/netty/util/CharsetUtil 4630
io/netty/resolver/HostsFileParser 4617
io/netty/channel/oio/OioByteStreamChannel 4614
io/netty/handler/codec/json/JsonObjectDecoder 4604
io/netty/handler/stream/ChunkedStream 4583
io/netty/handler/codec/http/cookie/ServerCookieEncoder 4572
io/netty/handler/codec/redis/ArrayRedisMessage$2 4556
io/netty/handler/codec/http/HttpMethod 4549
io/netty/handler/codec/spdy/SpdyHttpEncoder 4542
io/netty/handler/codec/http/websocketx/WebSocketServerProtocolHandshakeHandler 4534
io/netty/handler/codec/socksx/v4/Socks4CommandStatus 4534
io/netty/handler/codec/stomp/StompSubframeEncoder 4531
io/netty/handler/codec/compression/JZlibDecoder 4513
io/netty/util/collection/ByteObjectHashMap$PrimitiveIterator 4506
io/netty/util/collection/CharObjectHashMap$PrimitiveIterator 4506
io/netty/util/collection/IntObjectHashMap$PrimitiveIterator 4506
io/netty/util/collection/LongObjectHashMap$PrimitiveIterator 4506
io/netty/util/collection/ShortObjectHashMap$PrimitiveIterator 4506
io/netty/handler/codec/http2/DelegatingDecompressorFrameListener$ConsumedBytesConverter 4498
io/netty/handler/codec/memcache/binary/AbstractBinaryMemcacheDecoder 4491
io/netty/handler/codec/http2/DefaultHttp2Connection$ActiveStreams 4484
io/netty/handler/timeout/WriteTimeoutHandler 4482
io/netty/handler/codec/socksx/v5/Socks5PasswordAuthStatus 4478
io/netty/resolver/dns/macos/MacOSDnsServerAddressStreamProvider 4455
io/netty/util/concurrent/ProgressivePromise 4439
io/netty/handler/codec/spdy/SpdySettingsFrame 4437
io/netty/handler/codec/spdy/DefaultSpdySynReplyFrame 4434
io/netty/resolver/dns/DnsResolveContext$AuthoritativeNameServer 4428
io/netty/buffer/PoolArena$DirectArena 4424
io/netty/handler/codec/mqtt/MqttProperties 4417
io/netty/handler/codec/http2/DefaultHttp2LocalFlowController$FlowState 4416
io/netty/handler/proxy/Socks4ProxyHandler 4413
io/netty/handler/codec/http2/Http2DataFrame 4412
io/netty/handler/codec/http2/Http2UnknownFrame 4412
io/netty/handler/codec/compression/Crc32 4405
io/netty/handler/codec/http/websocketx/WebSocketClientProtocolHandshakeHandler 4400
io/netty/handler/codec/spdy/SpdyHeaderBlockRawDecoder 4395
io/netty/handler/codec/redis/FixedRedisMessagePool 4388
io/netty/handler/codec/spdy/SpdyStreamStatus 4387
io/netty/handler/codec/dns/DnsMessageUtil 4381
io/netty/channel/ChannelInitializer 4379
io/netty/handler/codec/http2/AbstractInboundHttp2ToHttpAdapterBuilder 4370
io/netty/handler/codec/xml/XmlFrameDecoder 4367
io/netty/channel/PendingWriteQueue$PendingWrite 4354
io/netty/buffer/PoolThreadCache$MemoryRegionCache 4345
io/netty/handler/codec/smtp/SmtpCommand 4345
io/netty/channel/group/ChannelMatchers 4332
io/netty/buffer/LongPriorityQueue 4317
io/netty/channel/unix/NativeInetAddress 4307
io/netty/handler/codec/http/websocketx/extensions/compression/DeflateEncoder 4297
io/netty/handler/codec/http2/HpackDynamicTable 4271
io/netty/handler/codec/mqtt/MqttMessageBuilders 4265
io/netty/util/ConstantPool 4258
io/netty/handler/codec/haproxy/HAProxySSLTLV 4247
io/netty/handler/codec/ReplayingDecoder 4242
io/netty/channel/epoll/NativeDatagramPacketArray 4227
io/netty/handler/codec/dns/DnsOpCode 4226
io/netty/handler/codec/mqtt/MqttMessage 4222
io/netty/handler/codec/mqtt/MqttCodecUtil 4220
io/netty/handler/codec/socksx/v5/Socks5AuthMethod 4183
io/netty/handler/codec/socksx/v5/Socks5ClientEncoder 4180
io/netty/handler/codec/socksx/v5/Socks5AddressType 4161
io/netty/handler/codec/socksx/v5/Socks5CommandType 4156
io/netty/handler/codec/haproxy/HAProxyMessageEncoder 4153
io/netty/handler/codec/redis/ArrayRedisMessage 4145
io/netty/channel/epoll/EpollEventArray 4136
io/netty/resolver/dns/DnsQueryContextManager 4134
io/netty/handler/codec/socksx/v4/Socks4CommandType 4129
io/netty/handler/codec/spdy/SpdySessionStatus 4119
io/netty/handler/codec/spdy/SpdyHeaderBlockZlibDecoder 4111
io/netty/channel/AdaptiveRecvByteBufAllocator 4106
io/netty/handler/codec/http2/DefaultHttp2ResetFrame 4104
io/netty/handler/codec/http/cookie/ClientCookieEncoder 4099
io/netty/handler/codec/http/HttpChunkedInput 4095
io/netty/channel/sctp/SctpChannel 4093
io/netty/handler/codec/http/FullHttpRequest 4091
io/netty/handler/codec/spdy/SpdyDataFrame 4091
io/netty/handler/codec/compression/Bzip2BitReader 4086
io/netty/handler/codec/socks/SocksCmdResponse 4079
io/netty/channel/nio/SelectedSelectionKeySet 4075
io/netty/handler/codec/xml/XmlAttribute 4057
io/netty/handler/codec/http/websocketx/WebSocketChunkedInput 4052
io/netty/channel/ChannelOption 4050
io/netty/handler/ssl/Java8SslUtils 4049
io/netty/util/DefaultAttributeMap 4036
io/netty/handler/codec/http2/DecoratingHttp2ConnectionDecoder 4024
io/netty/handler/codec/spdy/DefaultSpdyHeaders 4016
io/netty/channel/ChannelInboundHandlerAdapter 4009
io/netty/channel/nio/SelectedSelectionKeySetSelector 3992
io/netty/channel/nio/AbstractNioMessageChannel 3987
io/netty/handler/codec/redis/RedisMessageType 3987
io/netty/handler/codec/socksx/v5/Socks5ServerEncoder 3986
io/netty/handler/codec/stomp/DefaultStompHeaders 3978
io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker00 3971
io/netty/handler/codec/compression/Bzip2BlockDecompressor 3968
io/netty/util/ThreadDeathWatcher 3962
io/netty/channel/AbstractChannelHandlerContext$WriteTask 3957
io/netty/handler/codec/MessageToByteEncoder 3951
io/netty/handler/codec/dns/DatagramDnsResponseEncoder 3950
io/netty/handler/codec/http2/Http2Headers$PseudoHeaderName 3947
io/netty/util/ResourceLeakDetector$TraceRecord 3939
io/netty/util/concurrent/DefaultEventExecutor 3901
io/netty/channel/oio/AbstractOioChannel 3882
io/netty/handler/ssl/JdkAlpnSslUtils 3880
io/netty/handler/ssl/ApplicationProtocolConfig 3870
io/netty/handler/codec/mqtt/MqttSubscriptionOption 3867
io/netty/handler/codec/mqtt/MqttProperties$MqttPropertyType 3854
io/netty/handler/codec/smtp/DefaultSmtpRequest 3847
io/netty/handler/ipfilter/IpSubnetFilterRule$Ip6SubnetFilterRule 3845
io/netty/channel/local/LocalAddress 3837
io/netty/buffer/PoolArena$HeapArena 3813
io/netty/handler/codec/http/DefaultHttpMessage 3805
io/netty/channel/unix/Errors 3792
io/netty/handler/codec/http/LastHttpContent 3791
io/netty/util/HashedWheelTimer$HashedWheelBucket 3782
io/netty/util/DefaultAttributeMap$DefaultAttribute 3781
io/netty/channel/ChannelFuture 3776
io/netty/handler/codec/http/multipart/Attribute 3772
io/netty/handler/codec/http/multipart/HttpDataFactory 3772
io/netty/channel/socket/DuplexChannelConfig 3771
io/netty/channel/RecvByteBufAllocator$Handle 3770
io/netty/handler/codec/http/FullHttpResponse 3770
io/netty/handler/codec/http/HttpResponseDecoder 3764
io/netty/handler/codec/http2/HpackHuffmanEncoder 3745
io/netty/handler/codec/compression/SnappyFrameEncoder 3738
io/netty/handler/ipfilter/IpSubnetFilter 3729
io/netty/channel/epoll/EpollRecvByteAllocatorHandle 3728
io/netty/handler/codec/compression/Lz4FrameDecoder 3723
io/netty/handler/codec/http/HttpContentCompressor 3715
io/netty/channel/AbstractServerChannel 3714
io/netty/handler/codec/haproxy/HAProxyProxiedProtocol 3714
io/netty/handler/codec/http2/Http2ControlFrameLimitEncoder 3714
io/netty/handler/codec/spdy/DefaultSpdyRstStreamFrame 3710
io/netty/channel/ChannelDuplexHandler 3706
io/netty/util/AbstractConstant 3704
io/netty/handler/codec/http/websocketx/WebSocketDecoderConfig$Builder 3703
io/netty/resolver/SimpleNameResolver 3698
io/netty/handler/codec/http/websocketx/WebSocketServerHandshakerFactory 3694
io/netty/util/HashedWheelTimer$Worker 3692
io/netty/channel/ChannelOutboundHandlerAdapter 3690
io/netty/handler/codec/http/HttpServerKeepAliveHandler 3689
io/netty/handler/codec/http2/DefaultHttp2PriorityFrame 3685
io/netty/resolver/dns/DefaultAuthoritativeDnsServerCache 3685
io/netty/bootstrap/AbstractBootstrapConfig 3657
io/netty/handler/codec/http/HttpResponseEncoder 3653
io/netty/handler/codec/mqtt/MqttUnsubAckMessage 3653
io/netty/handler/codec/xml/XmlDocumentStart 3634
io/netty/handler/codec/LengthFieldPrepender 3633
io/netty/util/concurrent/SingleThreadEventExecutor$DefaultThreadProperties 3625
io/netty/handler/codec/compression/Bzip2HuffmanAllocator 3615
io/netty/handler/codec/rtsp/RtspDecoder 3613
io/netty/handler/codec/xml/XmlElement 3612
io/netty/handler/codec/http2/InboundHttp2ToHttpAdapterBuilder 3609
io/netty/resolver/dns/LoggingDnsQueryLifecycleObserver 3605
io/netty/handler/codec/http/CookieUtil 3600
io/netty/resolver/dns/BiDnsQueryLifecycleObserver 3598
io/netty/handler/codec/LineBasedFrameDecoder 3590
io/netty/resolver/dns/Cache$1 3583
io/netty/handler/codec/mqtt/MqttVersion 3567
io/netty/buffer/UnsafeHeapSwappedByteBuf 3552
io/netty/resolver/dns/NoopDnsQueryLifecycleObserver 3550
io/netty/handler/codec/MessageToMessageEncoder 3548
io/netty/handler/codec/mqtt/MqttConnectReturnCode 3548
io/netty/handler/codec/http2/HttpToHttp2ConnectionHandler 3533
io/netty/handler/codec/compression/Bzip2MoveToFrontTable 3531
io/netty/handler/codec/http/websocketx/WebSocketUtil 3531
io/netty/handler/codec/memcache/binary/BinaryMemcacheObjectAggregator 3531
io/netty/util/concurrent/SingleThreadEventExecutor$4 3530
io/netty/buffer/UnsafeDirectSwappedByteBuf 3521
io/netty/channel/socket/InternetProtocolFamily 3517
io/netty/buffer/LongLongHashMap 3500
io/netty/handler/codec/http2/Http2ChannelDuplexHandler 3494
io/netty/handler/codec/dns/DatagramDnsQueryDecoder 3493
io/netty/handler/codec/DecoderResult 3491
io/netty/handler/codec/dns/DefaultDnsOptEcsRecord 3479
io/netty/channel/ThreadPerChannelEventLoop 3478
io/netty/buffer/search/AhoCorasicSearchProcessorFactory 3477
io/netty/handler/codec/http2/Http2StreamChannelId 3474
io/netty/handler/codec/smtp/DefaultSmtpResponse 3474
io/netty/util/collection/ByteObjectHashMap$KeySet 3474
io/netty/util/collection/CharObjectHashMap$KeySet 3474
io/netty/util/collection/IntObjectHashMap$KeySet 3474
io/netty/util/collection/LongObjectHashMap$KeySet 3474
io/netty/util/collection/ShortObjectHashMap$KeySet 3474
io/netty/handler/codec/memcache/LastMemcacheContent 3470
io/netty/handler/codec/redis/LastBulkStringRedisContent 3470
io/netty/handler/codec/smtp/LastSmtpContent 3470
io/netty/handler/codec/stomp/LastStompContentSubframe 3470
io/netty/resolver/AddressResolverGroup 3467
io/netty/handler/ssl/JdkBaseApplicationProtocolNegotiator 3462
io/netty/handler/codec/http2/DecoratingHttp2ConnectionEncoder 3460
io/netty/handler/codec/MessageToMessageCodec 3456
io/netty/handler/codec/dns/AbstractDnsOptPseudoRrRecord 3455
io/netty/handler/codec/socksx/v5/DefaultSocks5CommandResponse 3455
io/netty/channel/FileRegion 3451
io/netty/channel/ChannelInboundHandler 3450
io/netty/handler/codec/http2/Http2ConnectionDecoder 3450
io/netty/handler/codec/spdy/SpdySynStreamFrame 3449
io/netty/buffer/ByteBufHolder 3441
io/netty/channel/ChannelInboundInvoker 3441
io/netty/channel/socket/DuplexChannel 3441
io/netty/handler/ssl/OpenSslKeyMaterial 3441
io/netty/handler/codec/compression/FastLzFrameEncoder 3431
io/netty/handler/codec/http/HttpRequestDecoder 3422
io/netty/handler/ssl/AbstractSniHandler 3414
io/netty/resolver/InetSocketAddressResolver 3409
io/netty/handler/codec/http2/DefaultHttp2PingFrame 3405
io/netty/handler/codec/spdy/SpdyProtocolException 3401
io/netty/channel/ChannelHandlerMask 3391
io/netty/resolver/dns/ShuffledDnsServerAddressStream 3387
io/netty/handler/codec/spdy/DefaultSpdyGoAwayFrame 3383
io/netty/handler/codec/compression/Bzip2Decoder 3382
io/netty/handler/codec/HeadersUtils$StringEntry 3369
io/netty/handler/ssl/ApplicationProtocolNegotiationHandler 3366
io/netty/resolver/dns/macos/DnsResolver 3364
io/netty/handler/codec/mqtt/MqttMessageBuilders$PublishBuilder 3363
io/netty/handler/codec/http/websocketx/extensions/compression/PerMessageDeflateClientExtensionHandshaker 3359
io/netty/util/internal/CleanerJava6 3342
io/netty/channel/unix/Buffer 3323
io/netty/resolver/CompositeNameResolver 3322
io/netty/resolver/dns/DnsAddressResolverGroup 3319
io/netty/handler/codec/compression/ZlibUtil 3306
io/netty/handler/codec/compression/SnappyFrameDecoder 3299
io/netty/util/ResourceLeakDetectorFactory 3291
io/netty/channel/DefaultEventLoop 3289
io/netty/handler/codec/http2/UniformStreamByteDistributor$State 3286
io/netty/resolver/dns/Cache$Entries 3286
io/netty/handler/codec/socksx/v4/DefaultSocks4CommandRequest 3282
io/netty/resolver/dns/NoopDnsCache 3265
io/netty/handler/codec/mqtt/MqttProperties$UserProperties 3262
io/netty/handler/codec/socks/SocksCmdStatus 3257
io/netty/handler/codec/spdy/SpdyHeaderBlockJZlibEncoder 3248
io/netty/handler/codec/http/HttpClientCodec$Decoder 3236
io/netty/handler/codec/http/websocketx/WebSocket08FrameEncoder 3233
io/netty/handler/codec/http/HttpServerCodec 3217
io/netty/handler/codec/mqtt/MqttMessageType 3217
io/netty/handler/codec/http2/Http2ConnectionAdapter 3209
io/netty/resolver/dns/SequentialDnsServerAddressStream 3203
io/netty/handler/codec/socks/SocksCmdRequest 3201
io/netty/channel/ChannelOutboundBuffer$Entry 3200
io/netty/handler/codec/http/websocketx/extensions/compression/PerMessageDeflateEncoder 3194
io/netty/handler/codec/http/websocketx/WebSocket00FrameDecoder 3191
io/netty/channel/socket/nio/NioServerSocketChannel$NioServerSocketChannelConfig 3180
io/netty/handler/codec/http/websocketx/extensions/compression/PerMessageDeflateDecoder 3177
io/netty/handler/codec/spdy/SpdyHeaderBlockZlibEncoder 3172
io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker07 3154
io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker08 3154
io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker13 3154
io/netty/handler/ipfilter/AbstractRemoteAddressFilter 3148
io/netty/handler/codec/http2/Http2ConnectionHandler$ClosingChannelFutureListener 3140
io/netty/handler/codec/http2/Http2RemoteFlowController 3138
io/netty/util/Attribute 3137
io/netty/channel/ChannelOutboundHandler 3136
io/netty/util/concurrent/ProgressiveFuture 3136
io/netty/handler/codec/http2/Http2Error 3135
io/netty/channel/ChannelProgressiveFuture 3134
io/netty/util/concurrent/ThreadProperties 3128
io/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest 3122
io/netty/buffer/SizeClassesMetric 3120
io/netty/handler/codec/compression/Lz4XXHash32 3120
io/netty/handler/codec/dns/DnsRawRecord 3120
io/netty/handler/codec/http/FullHttpMessage 3120
io/netty/handler/codec/http/HttpContent 3120
io/netty/handler/codec/memcache/FullMemcacheMessage 3120
io/netty/handler/codec/memcache/MemcacheContent 3120
io/netty/handler/codec/memcache/binary/FullBinaryMemcacheRequest 3120
io/netty/handler/codec/memcache/binary/FullBinaryMemcacheResponse 3120
io/netty/handler/codec/redis/BulkStringRedisContent 3120
io/netty/handler/codec/smtp/SmtpContent 3120
io/netty/handler/codec/stomp/StompContentSubframe 3120
io/netty/handler/codec/stomp/StompFrame 3120
io/netty/handler/codec/smtp/SmtpResponseDecoder 3110
io/netty/handler/pcap/IPPacket 3109
io/netty/handler/codec/http2/Http2FrameCodec$DefaultHttp2FrameStream 3102
io/netty/channel/SimpleChannelInboundHandler 3101
io/netty/channel/SimpleUserEventChannelHandler 3101
io/netty/handler/codec/mqtt/MqttMessageBuilders$SubscribeBuilder 3101
io/netty/handler/codec/mqtt/MqttFixedHeader 3092
io/netty/handler/ipfilter/IpSubnetFilterRule$Ip4SubnetFilterRule 3092
io/netty/channel/DefaultEventLoopGroup 3085
io/netty/handler/codec/mqtt/MqttMessageBuilders$ConnAckBuilder 3084
io/netty/handler/codec/socks/SocksAddressType 3084
io/netty/handler/codec/socks/SocksAuthScheme 3084
io/netty/handler/codec/socks/SocksCmdType 3084
io/netty/util/internal/ConcurrentSet 3071
io/netty/channel/AbstractChannel$CloseFuture 3070
io/netty/channel/kqueue/AcceptFilter 3069
io/netty/handler/codec/http2/Http2FrameCodec$ConnectionListener 3066
io/netty/channel/ChannelException 3062
io/netty/handler/codec/serialization/ClassResolvers 3062
io/netty/handler/codec/compression/Bzip2MTFAndRLE2StageEncoder 3056
io/netty/handler/codec/socksx/SocksPortUnificationServerHandler 3056
io/netty/handler/codec/HeadersUtils$DelegatingStringSet 3053
io/netty/handler/codec/socks/SocksProtocolVersion 3053
io/netty/handler/codec/base64/Base64$Decoder 3051
io/netty/resolver/dns/LoggingDnsQueryLifeCycleObserverFactory 3048
io/netty/handler/codec/http/websocketx/WebSocketClientHandshakerFactory 3047
io/netty/handler/codec/stomp/DefaultStompHeadersSubframe 3046
io/netty/channel/CoalescingBufferQueue 3045
io/netty/util/NetUtilInitializations 3037
io/netty/handler/codec/memcache/AbstractMemcacheObjectEncoder 3033
io/netty/handler/codec/protobuf/ProtobufDecoder 3031
io/netty/handler/codec/http/HttpScheme 3030
io/netty/handler/codec/http/websocketx/WebSocketScheme 3030
io/netty/handler/codec/socks/SocksAuthStatus 3030
io/netty/handler/codec/socks/SocksSubnegotiationVersion 3030
io/netty/handler/codec/mqtt/MqttPublishVariableHeader 3014
io/netty/resolver/dns/DnsNameResolverException 3012
io/netty/channel/FailedChannelFuture 2997
io/netty/handler/codec/compression/Bzip2BitWriter 2996
io/netty/handler/codec/http2/DefaultHttp2WindowUpdateFrame 2996
io/netty/handler/codec/haproxy/HAProxyTLV$Type 2992
io/netty/util/ThreadDeathWatcher$Watcher 2981
io/netty/handler/codec/http2/Http2ConnectionHandler$BaseDecoder 2979
io/netty/handler/codec/http/websocketx/extensions/WebSocketServerExtensionHandler 2977
io/netty/util/AttributeKey 2973
io/netty/handler/codec/ProtocolDetectionResult 2971
io/netty/handler/codec/dns/DefaultDnsRecordDecoder 2970
io/netty/handler/codec/spdy/SpdyHttpResponseStreamIdHandler 2957
io/netty/handler/codec/compression/FastLzFrameDecoder 2945
io/netty/channel/DefaultMaxMessagesRecvByteBufAllocator 2944
io/netty/handler/codec/mqtt/MqttSubAckMessage 2943
io/netty/handler/codec/mqtt/MqttSubscribeMessage 2943
io/netty/handler/codec/mqtt/MqttUnsubscribeMessage 2943
io/netty/channel/epoll/AbstractEpollStreamChannel$EpollStreamUnsafe 2927
io/netty/handler/codec/smtp/SmtpRequestEncoder 2922
io/netty/buffer/PooledByteBufAllocator$PoolThreadLocalCache 2921
io/netty/bootstrap/ServerBootstrapConfig 2918
io/netty/handler/codec/spdy/DefaultSpdySettingsFrame$Setting 2918
io/netty/handler/codec/HeadersUtils 2905
io/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse 2904
io/netty/handler/codec/http2/DelegatingDecompressorFrameListener$Http2Decompressor 2898
io/netty/resolver/dns/DefaultDnsCnameCache 2897
io/netty/channel/rxtx/RxtxChannel$RxtxUnsafe 2896
io/netty/handler/codec/http2/ReadOnlyHttp2Headers$ReadOnlyValueIterator 2883
io/netty/util/ResourceLeakDetectorFactory$DefaultResourceLeakDetectorFactory 2876
io/netty/handler/codec/http/websocketx/extensions/WebSocketExtensionUtil 2864
io/netty/handler/codec/mqtt/MqttUnsubAckPayload 2863
io/netty/handler/codec/http/HttpObjectDecoder$HeaderParser 2860
io/netty/handler/codec/dns/DnsResponseDecoder 2859
io/netty/resolver/dns/AuthoritativeDnsServerCacheAdapter 2859
io/netty/channel/rxtx/RxtxChannelConfig$Paritybit 2849
io/netty/handler/codec/http/websocketx/WebSocketVersion 2839
io/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily 2838
io/netty/handler/codec/mqtt/MqttMessageBuilders$SubAckBuilder 2838
io/netty/util/concurrent/DefaultFutureListeners 2831
io/netty/util/internal/CleanerJava9 2825
io/netty/channel/rxtx/RxtxChannelConfig$Databits 2822
io/netty/util/concurrent/UnorderedThreadPoolEventExecutor$RunnableScheduledFutureTask 2822
io/netty/channel/AddressedEnvelope 2814
io/netty/handler/codec/mqtt/MqttQoS 2814
io/netty/resolver/dns/DnsResolveContext$DnsAddressStreamList 2810
io/netty/handler/codec/http2/Http2ConnectionEncoder 2808
io/netty/handler/codec/http2/Http2Stream$State 2807
io/netty/handler/codec/http/cookie/ServerCookieDecoder 2806
io/netty/handler/codec/http2/Http2MultiplexCodec$Http2MultiplexCodecStreamChannel 2803
io/netty/handler/codec/xml/XmlEntityReference 2803
io/netty/handler/codec/xml/XmlNamespace 2803
io/netty/handler/codec/xml/XmlProcessingInstruction 2803
io/netty/resolver/AddressResolver 2803
io/netty/handler/codec/http/HttpRequest 2801
io/netty/channel/sctp/SctpServerChannel 2800
io/netty/handler/codec/http2/DefaultHttp2ConnectionEncoder$FlowControlledData 2800
io/netty/resolver/dns/DnsQueryLifecycleObserver 2800
io/netty/handler/codec/http2/Http2Connection$Listener 2799
io/netty/handler/codec/redis/RedisMessagePool 2799
io/netty/handler/codec/spdy/SpdyHeadersFrame 2799
io/netty/util/ReferenceCounted 2799
io/netty/handler/codec/http/HttpServerCodec$HttpServerResponseEncoder 2798
io/netty/handler/codec/string/LineEncoder 2797
io/netty/channel/rxtx/RxtxChannelConfig$Stopbits 2796
io/netty/handler/codec/haproxy/HAProxyProxiedProtocol$TransportProtocol 2789
io/netty/handler/codec/memcache/binary/BinaryMemcacheRequestDecoder 2789
io/netty/handler/codec/memcache/binary/BinaryMemcacheResponseDecoder 2789
io/netty/resolver/dns/DefaultDnsServerAddressStreamProvider 2786
io/netty/handler/codec/socks/SocksCommonUtils 2782
io/netty/handler/proxy/ProxyConnectionEvent 2777
io/netty/handler/codec/http2/WeightedFairQueueByteDistributor$1 2776
io/netty/resolver/dns/DnsNameResolver$DnsResponseHandler 2775
io/netty/handler/codec/http2/DefaultHttp2Connection$DefaultStream$PropertyMap 2773
io/netty/handler/codec/UnsupportedMessageTypeException 2770
io/netty/handler/codec/http/ReadOnlyHttpHeaders$ReadOnlyStringValueIterator 2767
io/netty/handler/codec/mqtt/MqttSubscriptionOption$RetainedHandlingPolicy 2767
io/netty/handler/codec/dns/TcpDnsQueryEncoder 2765
io/netty/channel/ChannelHandlerAdapter 2763
io/netty/handler/codec/http/ReadOnlyHttpHeaders$ReadOnlyValueIterator 2762
io/netty/handler/codec/haproxy/HAProxyProtocolVersion 2748
io/netty/channel/epoll/AbstractEpollStreamChannel$SpliceInChannelTask 2745
io/netty/handler/codec/haproxy/HAProxyCommand 2745
io/netty/handler/codec/string/LineSeparator 2745
io/netty/handler/codec/memcache/binary/AbstractBinaryMemcacheEncoder 2744
io/netty/handler/codec/http/DefaultHttpHeaders$HeaderValueConverterAndValidator 2742
io/netty/handler/codec/mqtt/MqttMessageBuilders$UnsubAckBuilder 2742
io/netty/util/ResourceLeakException 2741
io/netty/channel/WriteBufferWaterMark 2738
io/netty/channel/PendingBytesTracker 2736
io/netty/util/Recycler$WeakOrderQueue$Head 2732
io/netty/handler/codec/spdy/SpdyHeaderBlockRawEncoder 2729
io/netty/util/collection/ByteObjectHashMap$MapEntry 2729
io/netty/util/collection/CharObjectHashMap$MapEntry 2729
io/netty/util/collection/IntObjectHashMap$MapEntry 2729
io/netty/util/collection/LongObjectHashMap$MapEntry 2729
io/netty/util/collection/ShortObjectHashMap$MapEntry 2729
io/netty/util/IllegalReferenceCountException 2727
io/netty/buffer/CompositeByteBuf$CompositeByteBufIterator 2726
io/netty/channel/socket/nio/NioChannelOption 2726
io/netty/handler/codec/xml/XmlDecoder 2719
io/netty/handler/codec/socksx/SocksVersion 2711
io/netty/resolver/RoundRobinInetAddressResolver 2710
io/netty/handler/codec/mqtt/MqttMessageIdVariableHeader 2701
io/netty/handler/codec/socksx/v4/Socks4ServerDecoder 2699
io/netty/handler/codec/spdy/DefaultSpdyWindowUpdateFrame 2696
io/netty/handler/codec/http/multipart/DeleteFileOnExitHook 2695
io/netty/util/collection/ByteObjectHashMap$MapIterator 2694
io/netty/util/collection/CharObjectHashMap$MapIterator 2694
io/netty/util/collection/IntObjectHashMap$MapIterator 2694
io/netty/util/collection/LongObjectHashMap$MapIterator 2694
io/netty/util/collection/ShortObjectHashMap$MapIterator 2694
io/netty/resolver/dns/DefaultAuthoritativeDnsServerCache$1 2690
io/netty/handler/codec/http2/DefaultHttp2SettingsFrame 2689
io/netty/handler/codec/DefaultHeaders$HeaderIterator 2687
io/netty/handler/codec/mqtt/MqttConnAckVariableHeader 2684
io/netty/handler/codec/http/multipart/HttpPostBodyUtil$TransferEncodingMechanism 2683
io/netty/handler/codec/mqtt/MqttTopicSubscription 2678
io/netty/channel/sctp/SctpNotificationHandler 2673
io/netty/resolver/dns/DefaultDnsCache$DefaultDnsCacheEntry 2670
io/netty/util/internal/DefaultPriorityQueue$PriorityQueueIterator 2667
io/netty/handler/codec/http2/AbstractHttp2StreamFrame 2666
io/netty/bootstrap/ServerBootstrap$ServerBootstrapAcceptor 2657
io/netty/handler/codec/http/DefaultHttpObject 2655
io/netty/channel/AbstractChannelHandlerContext$Tasks 2645
io/netty/util/concurrent/FailedFuture 2645
io/netty/channel/unix/DomainSocketAddress 2641
io/netty/handler/codec/mqtt/MqttSubAckPayload 2640
io/netty/channel/nio/AbstractNioByteChannel$NioByteUnsafe 2637
io/netty/handler/codec/spdy/SpdyVersion 2637
io/netty/util/DomainWildcardMappingBuilder$ImmutableDomainWildcardMapping 2635
io/netty/handler/codec/http2/DefaultHttp2FrameReader$Header以上是关于53 记一次自定义 classloader 导致的 metadataspace OOM的主要内容，如果未能解决你的问题，请参考以下文章