Deprecated List (Netty API Reference (4.0.56.Final))

Deprecated Packages
Package and Description
io.netty.channel.rxtx this transport will be removed in the next major version.
io.netty.channel.udt The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio The UDT transport is no longer maintained.

Deprecated Interfaces
Interface and Description
io.netty.handler.ssl.ApplicationProtocolNegotiator use `ApplicationProtocolConfig`
io.netty.handler.codec.http.Cookie Use `Cookie` instead.
io.netty.handler.ssl.JdkApplicationProtocolNegotiator use `ApplicationProtocolConfig`
io.netty.handler.ssl.OpenSslApplicationProtocolNegotiator use `ApplicationProtocolConfig`
io.netty.util.ResourceLeak please use `ResourceLeakTracker` as it may lead to false-positives.
io.netty.channel.rxtx.RxtxChannelConfig this transport will be removed in the next major version.
io.netty.channel.udt.UdtChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.UdtChannelConfig The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.UdtServerChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.UdtServerChannelConfig The UDT transport is no longer maintained and will be removed.

Deprecated Classes
Class and Description
io.netty.buffer.AbstractDerivedByteBuf Do not use.
io.netty.channel.ChannelPromiseAggregator Use `PromiseCombiner` Class which is used to consolidate multiple channel futures into one, by listening to the individual futures and producing an aggregated result (success/failure) when all futures have completed.
io.netty.handler.codec.http.ClientCookieEncoder Use `ClientCookieEncoder` instead.
io.netty.handler.codec.http.CookieDecoder Use `ClientCookieDecoder` or `ServerCookieDecoder` instead. Decodes an HTTP header value into `Cookie`s. This decoder can decode the HTTP cookie version 0, 1, and 2. `HttpRequest` req = ...; String value = req.getHeader("Cookie"); Set<`Cookie`> cookies = `CookieDecoder`.decode(value);
io.netty.handler.codec.http.DefaultCookie Use `DefaultCookie` instead.
io.netty.channel.udt.DefaultUdtChannelConfig The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.DefaultUdtServerChannelConfig The UDT transport is no longer maintained and will be removed.
io.netty.util.DomainMappingBuilder Use `DomainNameMappingBuilder` instead.
io.netty.buffer.DuplicatedByteBuf Do not use.
io.netty.handler.ssl.JdkAlpnApplicationProtocolNegotiator use `ApplicationProtocolConfig`.
io.netty.handler.ssl.JdkNpnApplicationProtocolNegotiator use `ApplicationProtocolConfig`.
io.netty.handler.ssl.JdkSslClientContext Use `SslContextBuilder` to create `JdkSslContext` instances and only use `JdkSslContext` in your code.
io.netty.handler.ssl.JdkSslServerContext Use `SslContextBuilder` to create `JdkSslContext` instances and only use `JdkSslContext` in your code.
io.netty.channel.udt.nio.NioUdtAcceptorChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtByteAcceptorChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtByteConnectorChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtByteRendezvousChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtMessageAcceptorChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtMessageConnectorChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtMessageRendezvousChannel The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.nio.NioUdtProvider The UDT transport is no longer maintained and will be removed.
io.netty.handler.ssl.OpenSslDefaultApplicationProtocolNegotiator use `ApplicationProtocolConfig`.
io.netty.handler.ssl.OpenSslNpnApplicationProtocolNegotiator use `ApplicationProtocolConfig`
io.netty.util.concurrent.PromiseAggregator Use `PromiseCombiner` `GenericFutureListener` implementation which consolidates multiple `Future`s into one, by listening to individual `Future`s and producing an aggregated result (success/failure) when all `Future`s have completed.
io.netty.buffer.ReadOnlyByteBuf Do not use.
io.netty.handler.codec.rtsp.RtspObjectDecoder Use `RtspDecoder` instead.
io.netty.handler.codec.rtsp.RtspObjectEncoder Use `RtspEncoder` instead.
io.netty.handler.codec.rtsp.RtspRequestDecoder Use `RtspDecoder` directly instead
io.netty.handler.codec.rtsp.RtspRequestEncoder Use `RtspEncoder` directly instead
io.netty.handler.codec.rtsp.RtspResponseDecoder Use `RtspDecoder` directly instead
io.netty.handler.codec.rtsp.RtspResponseEncoder Use `RtspEncoder` directly instead
io.netty.channel.rxtx.RxtxChannel this transport will be removed in the next major version.
io.netty.channel.rxtx.RxtxChannelOption this transport will be removed in the next major version.
io.netty.channel.rxtx.RxtxDeviceAddress this transport will be removed in the next major version.
io.netty.handler.codec.http.ServerCookieEncoder Use `ServerCookieEncoder` instead
io.netty.buffer.SlicedByteBuf Do not use.
io.netty.handler.codec.spdy.SpdyOrHttpChooser Use `ApplicationProtocolNegotiationHandler` instead.
io.netty.util.ThreadDeathWatcher will be removed in the next major release
io.netty.channel.udt.UdtChannelOption The UDT transport is no longer maintained and will be removed.
io.netty.channel.udt.UdtMessage The UDT transport is no longer maintained and will be removed.
io.netty.util.UniqueName Known to have problems with class loaders. Defines a name that must be unique in the map that is provided during construction.

Deprecated Exceptions
Exceptions and Description

io.netty.util.ResourceLeakException
This class will be removed in the future version.

Deprecated Exceptions
Exceptions and Description
io.netty.util.ResourceLeakException This class will be removed in the future version.

Deprecated Fields
Field and Description
io.netty.channel.ChannelOption.AIO_READ_TIMEOUT
io.netty.channel.ChannelOption.AIO_WRITE_TIMEOUT
io.netty.channel.ChannelOption.AUTO_CLOSE Auto close will be removed in a future release. If `true` then the `Channel` is closed automatically and immediately on write failure. The default value is `true`.
io.netty.channel.ChannelOption.DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION

Deprecated Methods
Method and Description
io.netty.channel.ChannelFlushPromiseNotifier.add(ChannelPromise, int) use `ChannelFlushPromiseNotifier.add(ChannelPromise, long)`
io.netty.util.DomainNameMapping.add(String, V) use `DomainNameMappingBuilder` to create and fill the mapping instead
io.netty.handler.ssl.OpenSsl.availableCipherSuites() use `OpenSsl.availableOpenSslCipherSuites()`
io.netty.handler.ssl.JdkSslContext.buildKeyManagerFactory(File, File, String, KeyManagerFactory) will be removed.
io.netty.handler.ssl.JdkSslContext.buildKeyManagerFactory(File, String, File, String, KeyManagerFactory) will be removed.
io.netty.handler.ssl.SslContext.buildTrustManagerFactory(File, TrustManagerFactory)
io.netty.buffer.PooledByteBufAllocator.chunkSize() use `PooledByteBufAllocatorMetric.chunkSize()`.
io.netty.handler.ssl.SslHandler.close() use `Channel.close()` or `ChannelHandlerContext.close()`
io.netty.handler.ssl.SslHandler.close(ChannelPromise) use `Channel.close()` or `ChannelHandlerContext.close()`
io.netty.handler.codec.http.DefaultCookie.comment()
io.netty.handler.codec.http.Cookie.comment() Not part of RFC6265
io.netty.handler.codec.http.DefaultCookie.commentUrl()
io.netty.handler.codec.http.Cookie.commentUrl() Not part of RFC6265
io.netty.handler.ssl.ReferenceCountedOpenSslContext.context() this method is considered unsafe as the returned pointer may be released later. Dont use it!
io.netty.channel.group.ChannelGroup.deregister() This method will be removed in the next major feature release. Deregister all `Channel`s in this group from their `EventLoop`. Please note that this operation is asynchronous as `Channel.deregister()` is.
io.netty.channel.group.ChannelGroup.deregister(ChannelMatcher) This method will be removed in the next major feature release. Deregister all `Channel`s in this group from their `EventLoop` that match the given `ChannelMatcher`. Please note that this operation is asynchronous as `Channel.deregister()` is.
io.netty.buffer.PooledByteBufAllocator.directArenas() use `PooledByteBufAllocatorMetric.directArenas()`.
io.netty.handler.codec.http.ServerCookieEncoder.encode(Collection<Cookie>)
io.netty.handler.codec.http.ServerCookieEncoder.encode(Cookie...)
io.netty.handler.codec.http.ClientCookieEncoder.encode(Cookie...)
io.netty.handler.codec.http.ServerCookieEncoder.encode(Cookie)
io.netty.handler.codec.http.ClientCookieEncoder.encode(Cookie)
io.netty.handler.codec.http.ServerCookieEncoder.encode(Iterable<Cookie>)
io.netty.handler.codec.http.ClientCookieEncoder.encode(Iterable<Cookie>)
io.netty.handler.codec.http.ServerCookieEncoder.encode(String, String)
io.netty.handler.codec.http.ClientCookieEncoder.encode(String, String)
io.netty.handler.codec.socks.SocksMessage.encodeAsByteBuf(ByteBuf) Do not use; this method was intended for an internal use only.
io.netty.handler.codec.http.HttpObjectEncoder.encodeAscii(String, ByteBuf)
io.netty.channel.ChannelHandler.exceptionCaught(ChannelHandlerContext, Throwable) is part of `ChannelInboundHandler`
io.netty.channel.group.ChannelGroup.flushAndWrite(Object) Use `ChannelGroup.writeAndFlush(Object)` instead.
io.netty.channel.group.ChannelGroup.flushAndWrite(Object, ChannelMatcher) Use `ChannelGroup.writeAndFlush(Object, ChannelMatcher)` instead.
io.netty.buffer.PooledByteBufAllocator.freeThreadLocalCache()
io.netty.handler.codec.socks.SocksSubnegotiationVersion.fromByte(byte) Use `SocksSubnegotiationVersion.valueOf(byte)` instead.
io.netty.handler.codec.socks.SocksProtocolVersion.fromByte(byte) Use `SocksProtocolVersion.valueOf(byte)` instead.
io.netty.handler.codec.socks.SocksCmdType.fromByte(byte) Use `SocksCmdType.valueOf(byte)` instead.
io.netty.handler.codec.socks.SocksCmdStatus.fromByte(byte) Use `SocksCmdStatus.valueOf(byte)` instead.
io.netty.handler.codec.socks.SocksAuthStatus.fromByte(byte) Use `SocksAuthStatus.valueOf(byte)` instead.
io.netty.handler.codec.socks.SocksAuthScheme.fromByte(byte) Use `SocksAuthScheme.valueOf(byte)` instead.
io.netty.handler.codec.socks.SocksAddressType.fromByte(byte) Use `SocksAddressType.valueOf(byte)` instead.
io.netty.util.Attribute.getAndRemove() please consider using `Attribute.getAndSet(Object)` (with value of `null`).
io.netty.handler.ssl.SslHandler.getCloseNotifyTimeoutMillis() use `SslHandler.getCloseNotifyFlushTimeoutMillis()`
io.netty.handler.codec.http.DefaultCookie.getComment()
io.netty.handler.codec.http.Cookie.getComment() Use `Cookie.comment()` instead.
io.netty.handler.codec.http.DefaultCookie.getCommentUrl()
io.netty.handler.codec.http.Cookie.getCommentUrl() Use `Cookie.commentUrl()` instead.
io.netty.util.CharsetUtil.getDecoder(Charset) Use `CharsetUtil.decoder(Charset)`.
io.netty.handler.codec.http.DefaultCookie.getDomain()
io.netty.handler.codec.http.Cookie.getDomain() Use `Cookie.domain()` instead.
io.netty.util.CharsetUtil.getEncoder(Charset) Use `CharsetUtil.encoder(Charset)`.
io.netty.handler.codec.http.DefaultCookie.getMaxAge()
io.netty.handler.codec.http.Cookie.getMaxAge() Use `Cookie.maxAge()` instead.
io.netty.handler.codec.http.DefaultCookie.getName()
io.netty.handler.codec.http.Cookie.getName() Use `Cookie.name()` instead.
io.netty.handler.codec.socks.SocksMessageEncoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.socks.SocksInitResponseDecoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.socks.SocksInitRequestDecoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.socks.SocksCmdResponseDecoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.socks.SocksCmdRequestDecoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.socks.SocksAuthResponseDecoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.socks.SocksAuthRequestDecoder.getName() Will be removed at the next minor version bump.
io.netty.handler.codec.http.DefaultCookie.getPath()
io.netty.handler.codec.http.Cookie.getPath() Use `Cookie.path()` instead.
io.netty.handler.codec.http.DefaultCookie.getPorts()
io.netty.handler.codec.http.Cookie.getPorts() Use `Cookie.ports()` instead.
io.netty.handler.ssl.ReferenceCountedOpenSslContext.getRejectRemoteInitiatedRenegotiation()
io.netty.handler.codec.http.DefaultCookie.getValue()
io.netty.handler.codec.http.Cookie.getValue() Use `Cookie.value()` instead.
io.netty.handler.codec.http.DefaultCookie.getVersion()
io.netty.handler.codec.http.Cookie.getVersion() Use `Cookie.version()` instead.
io.netty.buffer.PooledByteBufAllocator.hasThreadLocalCache()
io.netty.buffer.PooledByteBufAllocator.heapArenas() use `PooledByteBufAllocatorMetric.heapArenas()`.
io.netty.channel.AbstractChannel.invalidateLocalAddress() no use-case for this.
io.netty.channel.AbstractChannel.invalidateRemoteAddress() no use-case for this.
io.netty.channel.ChannelConfig.isAutoClose() Auto close will be removed in a future release. Returns `true` if and only if the `Channel` will be closed automatically and immediately on write failure. The default is `false`.
io.netty.handler.codec.http.DefaultCookie.isDiscard()
io.netty.handler.codec.http.Cookie.isDiscard() Not part of RFC6265
io.netty.channel.embedded.EmbeddedChannel.lastInboundBuffer() use `EmbeddedChannel.inboundMessages()`
io.netty.channel.embedded.EmbeddedChannel.lastOutboundBuffer() use `EmbeddedChannel.outboundMessages()`
io.netty.handler.codec.http.Cookie.maxAge() Not part of RFC6265
io.netty.handler.ssl.SslContext.newClientContext() Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(File) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(File, TrustManagerFactory) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(File, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(File, TrustManagerFactory, Iterable<String>, Iterable<String>, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider, File) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider, File, TrustManagerFactory) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider, File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider, File, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider, File, TrustManagerFactory, Iterable<String>, Iterable<String>, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(SslProvider, TrustManagerFactory) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newClientContext(TrustManagerFactory) Replaced by `SslContextBuilder`
io.netty.util.ResourceLeakDetectorFactory.newResourceLeakDetector(Class<T>, int, long) Use `ResourceLeakDetectorFactory.newResourceLeakDetector(Class, int)` instead. Returns a new instance of a `ResourceLeakDetector` with the given resource class.
io.netty.handler.ssl.SslContext.newServerContext(File, File) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(File, File, String) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(File, File, String, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(File, File, String, Iterable<String>, Iterable<String>, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(SslProvider, File, File) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(SslProvider, File, File, String) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(SslProvider, File, File, String, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(SslProvider, File, File, String, Iterable<String>, Iterable<String>, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(SslProvider, File, File, String, TrustManagerFactory, Iterable<String>, Iterable<String>, long, long) Replaced by `SslContextBuilder`
io.netty.handler.ssl.SslContext.newServerContext(SslProvider, File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) Replaced by `SslContextBuilder`
io.netty.util.concurrent.SingleThreadEventExecutor.newTaskQueue() Please use and override `SingleThreadEventExecutor.newTaskQueue(int)`.
io.netty.handler.ssl.SslContext.nextProtocols() Use `SslContext.applicationProtocolNegotiator()` instead.
io.netty.buffer.PooledByteBufAllocator.normalCacheSize() use `PooledByteBufAllocatorMetric.normalCacheSize()`.
io.netty.channel.ChannelFlushPromiseNotifier.notifyFlushFutures() use `ChannelFlushPromiseNotifier.notifyPromises()`
io.netty.channel.ChannelFlushPromiseNotifier.notifyFlushFutures(Throwable) use `ChannelFlushPromiseNotifier.notifyPromises(Throwable)`
io.netty.channel.ChannelFlushPromiseNotifier.notifyFlushFutures(Throwable, Throwable) use `ChannelFlushPromiseNotifier.notifyPromises(Throwable, Throwable)`
io.netty.buffer.PooledByteBufAllocator.numDirectArenas() use `PooledByteBufAllocatorMetric.numDirectArenas()`.
io.netty.buffer.PooledByteBufAllocator.numHeapArenas() use `PooledByteBufAllocatorMetric.numHeapArenas()`.
io.netty.buffer.PooledByteBufAllocator.numThreadLocalCaches() use `PooledByteBufAllocatorMetric.numThreadLocalCaches()`.
io.netty.util.ResourceLeakDetector.open(T) use `ResourceLeakDetector.track(Object)`
io.netty.buffer.SlicedByteBuf.order()
io.netty.buffer.ReadOnlyByteBuf.order()
io.netty.buffer.DuplicatedByteBuf.order()
io.netty.handler.codec.http.DefaultCookie.ports()
io.netty.handler.codec.http.Cookie.ports() Not part of RFC6265
io.netty.handler.codec.serialization.ObjectDecoderInputStream.readLine() Use `BufferedReader.readLine()` instead.
io.netty.handler.traffic.TrafficCounter.readTimeToWait(long, long, long)
io.netty.channel.ChannelOutboundBuffer.recycle()
io.netty.util.ReferenceCountUtil.releaseLater(T) this may introduce a lot of memory usage so it is generally preferable to manually release objects.
io.netty.util.ReferenceCountUtil.releaseLater(T, int) this may introduce a lot of memory usage so it is generally preferable to manually release objects.
io.netty.util.Attribute.remove() please consider using `Attribute.set(Object)` (with value of `null`).
io.netty.util.ResourceLeakDetector.reportInstancesLeak(String) This method will no longer be invoked by `ResourceLeakDetector`.
io.netty.handler.codec.http.websocketx.WebSocketServerHandshakerFactory.sendUnsupportedWebSocketVersionResponse(Channel) use `WebSocketServerHandshakerFactory.sendUnsupportedVersionResponse(Channel)`
io.netty.channel.ChannelConfig.setAutoClose(boolean) Auto close will be removed in a future release. Sets whether the `Channel` should be closed automatically and immediately on write failure. The default is `false`.
io.netty.handler.ssl.SslHandler.setCloseNotifyTimeout(long, TimeUnit) use `SslHandler.setCloseNotifyFlushTimeout(long, TimeUnit)`
io.netty.handler.ssl.SslHandler.setCloseNotifyTimeoutMillis(long) use `SslHandler.setCloseNotifyFlushTimeoutMillis(long)`
io.netty.handler.codec.http.DefaultCookie.setComment(String)
io.netty.handler.codec.http.Cookie.setComment(String) Not part of RFC6265
io.netty.handler.codec.http.DefaultCookie.setCommentUrl(String)
io.netty.handler.codec.http.Cookie.setCommentUrl(String) Not part of RFC6265
io.netty.handler.codec.http.DefaultCookie.setDiscard(boolean)
io.netty.handler.codec.http.Cookie.setDiscard(boolean) Not part of RFC6265
io.netty.util.ResourceLeakDetector.setEnabled(boolean) Use `ResourceLeakDetector.setLevel(Level)` instead.
io.netty.handler.codec.http.Cookie.setMaxAge(long) Not part of RFC6265
io.netty.handler.codec.http.DefaultCookie.setPorts(int...)
io.netty.handler.codec.http.Cookie.setPorts(int...) Not part of RFC6265
io.netty.handler.codec.http.DefaultCookie.setPorts(Iterable<Integer>)
io.netty.handler.codec.http.Cookie.setPorts(Iterable<Integer>) Not part of RFC6265
io.netty.handler.ssl.ReferenceCountedOpenSslContext.setRejectRemoteInitiatedRenegotiation(boolean)
io.netty.channel.epoll.EpollSocketChannelConfig.setTcpKeepCntl(int) use `EpollSocketChannelConfig.setTcpKeepCnt(int)`
io.netty.handler.ssl.ReferenceCountedOpenSslContext.setTicketKeys(byte[]) use `OpenSslSessionContext.setTicketKeys(byte[])`
io.netty.handler.ssl.OpenSslSessionContext.setTicketKeys(byte[]) use `OpenSslSessionContext.setTicketKeys(OpenSslSessionTicketKey...)`.
io.netty.handler.codec.http.DefaultCookie.setVersion(int)
io.netty.handler.codec.http.Cookie.setVersion(int) Not part of RFC6265
io.netty.channel.ThreadPerChannelEventLoopGroup.shutdown()
io.netty.util.concurrent.SingleThreadEventExecutor.shutdown()
io.netty.util.concurrent.MultithreadEventExecutorGroup.shutdown()
io.netty.util.concurrent.ImmediateEventExecutor.shutdown()
io.netty.util.concurrent.GlobalEventExecutor.shutdown()
io.netty.util.concurrent.EventExecutorGroup.shutdown() `EventExecutorGroup.shutdownGracefully(long, long, TimeUnit)` or `EventExecutorGroup.shutdownGracefully()` instead.
io.netty.util.concurrent.AbstractEventExecutorGroup.shutdown() `EventExecutorGroup.shutdownGracefully(long, long, TimeUnit)` or `AbstractEventExecutorGroup.shutdownGracefully()` instead.
io.netty.util.concurrent.AbstractEventExecutor.shutdown() `EventExecutorGroup.shutdownGracefully(long, long, TimeUnit)` or `shutdownGracefully()` instead.
io.netty.util.concurrent.EventExecutorGroup.shutdownNow() `EventExecutorGroup.shutdownGracefully(long, long, TimeUnit)` or `EventExecutorGroup.shutdownGracefully()` instead.
io.netty.util.concurrent.AbstractEventExecutorGroup.shutdownNow() `EventExecutorGroup.shutdownGracefully(long, long, TimeUnit)` or `AbstractEventExecutorGroup.shutdownGracefully()` instead.
io.netty.util.concurrent.AbstractEventExecutor.shutdownNow() `EventExecutorGroup.shutdownGracefully(long, long, TimeUnit)` or `shutdownGracefully()` instead.
io.netty.buffer.PooledByteBufAllocator.smallCacheSize() use `PooledByteBufAllocatorMetric.smallCacheSize()`.
io.netty.handler.ssl.ReferenceCountedOpenSslContext.sslCtxPointer() this method is considered unsafe as the returned pointer may be released later. Dont use it!
io.netty.handler.ssl.ReferenceCountedOpenSslContext.stats() use `#sessionContext#stats()`
io.netty.handler.traffic.AbstractTrafficShapingHandler.submitWrite(ChannelHandlerContext, Object, long, ChannelPromise)
io.netty.buffer.PooledByteBufAllocator.tinyCacheSize() use `PooledByteBufAllocatorMetric.tinyCacheSize()`.
io.netty.handler.codec.http.cookie.DefaultCookie.validateValue(String, String) CookieUtil is package private, will be removed once old Cookie API is dropped
io.netty.handler.codec.http.DefaultCookie.version()
io.netty.handler.codec.http.Cookie.version() Not part of RFC6265
io.netty.handler.traffic.TrafficCounter.writeTimeToWait(long, long, long)

Deprecated Constructors
Constructor and Description
io.netty.channel.epoll.AbstractEpollServerChannel(FileDescriptor) Use `AbstractEpollServerChannel.AbstractEpollServerChannel(Socket, boolean)`.
io.netty.channel.epoll.AbstractEpollServerChannel(int) Use `AbstractEpollServerChannel.AbstractEpollServerChannel(Socket, boolean)`.
io.netty.channel.epoll.AbstractEpollServerChannel(Socket) Use `AbstractEpollServerChannel.AbstractEpollServerChannel(Socket, boolean)`.
io.netty.channel.epoll.AbstractEpollStreamChannel(Channel, int) Use `AbstractEpollStreamChannel.AbstractEpollStreamChannel(Channel, Socket)`.
io.netty.channel.epoll.AbstractEpollStreamChannel(FileDescriptor) Use `AbstractEpollStreamChannel.AbstractEpollStreamChannel(Socket, boolean)`.
io.netty.channel.epoll.AbstractEpollStreamChannel(int) Use `AbstractEpollStreamChannel.AbstractEpollStreamChannel(Socket, boolean)`.
io.netty.channel.epoll.AbstractEpollStreamChannel(Socket) Use `AbstractEpollStreamChannel.AbstractEpollStreamChannel(Socket, boolean)`.
io.netty.util.AttributeKey(String) Use `AttributeKey.valueOf(String)` instead.
io.netty.channel.ChannelOption(String) Use `ChannelOption.valueOf(String)` instead.
io.netty.handler.stream.ChunkedWriteHandler(int) use `ChunkedWriteHandler.ChunkedWriteHandler()`
io.netty.channel.socket.oio.DefaultOioServerSocketChannelConfig(ServerSocketChannel, ServerSocket)
io.netty.channel.socket.oio.DefaultOioSocketChannelConfig(SocketChannel, Socket)
io.netty.util.DomainNameMapping(int, V) use `DomainNameMappingBuilder` to create and fill the mapping instead
io.netty.util.DomainNameMapping(V) use `DomainNameMappingBuilder` to create and fill the mapping instead
io.netty.channel.epoll.EpollDatagramChannel(FileDescriptor) Use `EpollDatagramChannel.EpollDatagramChannel(Socket)`.
io.netty.channel.epoll.EpollDomainSocketChannel(Channel, FileDescriptor) Use `EpollDomainSocketChannel.EpollDomainSocketChannel(Channel, Socket)`.
io.netty.channel.epoll.EpollDomainSocketChannel(FileDescriptor) Use `EpollDomainSocketChannel.EpollDomainSocketChannel(Socket, boolean)`. Creates a new `EpollDomainSocketChannel` from an existing `FileDescriptor`
io.netty.channel.epoll.EpollEventLoopGroup(int, ThreadFactory, int) Use `EpollEventLoopGroup.EpollEventLoopGroup(int)` or `EpollEventLoopGroup.EpollEventLoopGroup(int, ThreadFactory)`
io.netty.channel.epoll.EpollEventLoopGroup(int, ThreadFactory, int, SelectStrategyFactory) Use `EpollEventLoopGroup.EpollEventLoopGroup(int)`, `EpollEventLoopGroup.EpollEventLoopGroup(int, ThreadFactory)`, or `EpollEventLoopGroup.EpollEventLoopGroup(int, SelectStrategyFactory)`
io.netty.channel.epoll.EpollServerDomainSocketChannel(FileDescriptor) Use `EpollServerDomainSocketChannel.EpollServerDomainSocketChannel(Socket, boolean)`. Creates a new `EpollServerDomainSocketChannel` from an existing `FileDescriptor`.
io.netty.channel.epoll.EpollServerDomainSocketChannel(Socket) Use `EpollServerDomainSocketChannel.EpollServerDomainSocketChannel(Socket, boolean)`.
io.netty.channel.epoll.EpollServerSocketChannel(FileDescriptor) Use `EpollServerSocketChannel.EpollServerSocketChannel(Socket, boolean)`. Creates a new `EpollServerSocketChannel` from an existing `FileDescriptor`.
io.netty.channel.epoll.EpollServerSocketChannel(Socket) Use `EpollServerSocketChannel.EpollServerSocketChannel(Socket, boolean)`. Creates a new `EpollServerSocketChannel` from an existing `Socket`.
io.netty.channel.epoll.EpollSocketChannel(FileDescriptor) Use `EpollSocketChannel.EpollSocketChannel(Socket, boolean)`.
io.netty.handler.ssl.JdkSslClientContext() use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File, TrustManagerFactory) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, JdkApplicationProtocolNegotiator, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, JdkApplicationProtocolNegotiator, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(File, TrustManagerFactory, Iterable<String>, Iterable<String>, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslClientContext(TrustManagerFactory) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, File) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, File, String) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, File, String, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, File, String, Iterable<String>, CipherSuiteFilter, JdkApplicationProtocolNegotiator, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, File, String, Iterable<String>, Iterable<String>, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.JdkSslServerContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, JdkApplicationProtocolNegotiator, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext() use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext(File) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext(File, TrustManagerFactory) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext(File, TrustManagerFactory, Iterable<String>, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext(File, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslClientContext(TrustManagerFactory) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String, Iterable<String>, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String, Iterable<String>, Iterable<String>, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String, TrustManagerFactory, Iterable<String>, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, File, String, TrustManagerFactory, Iterable<String>, CipherSuiteFilter, OpenSslApplicationProtocolNegotiator, long, long) use `SslContextBuilder`}
io.netty.handler.ssl.OpenSslServerContext(File, File, String, TrustManagerFactory, Iterable<String>, OpenSslApplicationProtocolNegotiator, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, ApplicationProtocolConfig, long, long) use `SslContextBuilder`
io.netty.handler.ssl.OpenSslServerContext(File, TrustManagerFactory, File, File, String, KeyManagerFactory, Iterable<String>, CipherSuiteFilter, OpenSslApplicationProtocolNegotiator, long, long) use `SslContextBuilder`
io.netty.buffer.PooledByteBufAllocator(boolean, int, int, int, int) use `PooledByteBufAllocator.PooledByteBufAllocator(boolean, int, int, int, int, int, int, int, boolean)`
io.netty.buffer.PooledByteBufAllocator(boolean, int, int, int, int, int, int, int) use `PooledByteBufAllocator.PooledByteBufAllocator(boolean, int, int, int, int, int, int, int, boolean)`
io.netty.buffer.PooledByteBufAllocator(boolean, int, int, int, int, int, int, int, long)
io.netty.util.ResourceLeakDetector(Class<?>) use `ResourceLeakDetectorFactory.newResourceLeakDetector(Class, int, long)`.
io.netty.util.ResourceLeakDetector(Class<?>, int, long) Use `ResourceLeakDetector.ResourceLeakDetector(Class, int)`. This should not be used directly by users of `ResourceLeakDetector`. Please use `ResourceLeakDetectorFactory.newResourceLeakDetector(Class)` or `ResourceLeakDetectorFactory.newResourceLeakDetector(Class, int, long)`
io.netty.util.ResourceLeakDetector(String) use `ResourceLeakDetectorFactory.newResourceLeakDetector(Class, int, long)`.
io.netty.util.ResourceLeakDetector(String, int, long) use `ResourceLeakDetectorFactory.newResourceLeakDetector(Class, int, long)`.
io.netty.channel.sctp.SctpChannelOption(String) Will be removed in the future release.
io.netty.util.Signal(String) Use `Signal.valueOf(String)` instead.
io.netty.handler.ssl.SslHandler(SSLEngine, boolean, Executor) Use `SslHandler.SslHandler(SSLEngine, boolean)` instead.
io.netty.handler.ssl.SslHandler(SSLEngine, Executor) Use `SslHandler.SslHandler(SSLEngine)` instead.

Deprecated API

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