Deprecated List (Netty/Transport 4.2.0.RC2 API)

Deprecated Packages
Package and Description

io.netty.channel.oio
use NIO / EPOLL / KQUEUE transport.

io.netty.channel.socket.oio
use NIO / EPOLL / KQUEUE transport.

Deprecated Packages
Package and Description
io.netty.channel.oio use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio use NIO / EPOLL / KQUEUE transport.

Deprecated Interfaces
Interface and Description
io.netty.bootstrap.ChannelFactory Use `ChannelFactory` instead.
io.netty.channel.socket.oio.OioDatagramChannelConfig use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio.OioServerSocketChannelConfig use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio.OioSocketChannelConfig use NIO / EPOLL / KQUEUE transport.
io.netty.channel.RecvByteBufAllocator.Handle Use `RecvByteBufAllocator.ExtendedHandle`.

Deprecated Classes
Class and Description
io.netty.channel.oio.AbstractOioByteChannel use NIO / EPOLL / KQUEUE transport.
io.netty.channel.oio.AbstractOioChannel use NIO / EPOLL / KQUEUE transport.
io.netty.channel.oio.AbstractOioMessageChannel use NIO / EPOLL / KQUEUE transport.
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.channel.ChannelPromiseNotifier use `PromiseNotifier`.
io.netty.channel.DefaultEventLoopGroup
io.netty.channel.socket.oio.DefaultOioServerSocketChannelConfig use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio.DefaultOioSocketChannelConfig use NIO / EPOLL / KQUEUE transport.
io.netty.channel.local.LocalEventLoopGroup Use `MultiThreadIoEventLoopGroup` with `LocalIoHandler`.
io.netty.channel.nio.NioEventLoop Use `SingleThreadIoEventLoop` with `NioIoHandler`
io.netty.channel.nio.NioEventLoopGroup Use `MultiThreadIoEventLoopGroup` with `NioIoHandler`.
io.netty.channel.oio.OioByteStreamChannel use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio.OioDatagramChannel use NIO / EPOLL / KQUEUE transport.
io.netty.channel.oio.OioEventLoopGroup use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio.OioServerSocketChannel use NIO / EPOLL / KQUEUE transport.
io.netty.channel.socket.oio.OioSocketChannel use NIO / EPOLL / KQUEUE transport.
io.netty.channel.ThreadPerChannelEventLoop this will be remove in the next-major release.
io.netty.channel.ThreadPerChannelEventLoopGroup this will be remove in the next-major release.

Deprecated Enums
Enum and Description

io.netty.channel.socket.InternetProtocolFamily
use SocketProtocolFamily.

Deprecated Enums
Enum and Description
io.netty.channel.socket.InternetProtocolFamily use `SocketProtocolFamily`.

Deprecated Fields
Field and Description
io.netty.channel.ChannelOption.DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION
io.netty.channel.AdaptiveRecvByteBufAllocator.DEFAULT There is state for `DefaultMaxMessagesRecvByteBufAllocator.maxMessagesPerRead()` which is typically based upon channel type.
io.netty.channel.ChannelOption.MAX_MESSAGES_PER_READ Use `MaxMessagesRecvByteBufAllocator` and `MaxMessagesRecvByteBufAllocator.maxMessagesPerRead(int)`.
io.netty.channel.ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK Use `ChannelOption.WRITE_BUFFER_WATER_MARK`
io.netty.channel.ChannelOption.WRITE_BUFFER_LOW_WATER_MARK Use `ChannelOption.WRITE_BUFFER_WATER_MARK`

Deprecated Methods
Method and Description
io.netty.channel.ChannelFlushPromiseNotifier.add(ChannelPromise, int) use `ChannelFlushPromiseNotifier.add(ChannelPromise, long)`
io.netty.channel.ChannelPipeline.addAfter(EventExecutorGroup, String, String, ChannelHandler) use `ChannelPipeline.addAfter(String, String, ChannelHandler)`
io.netty.channel.ChannelPipeline.addBefore(EventExecutorGroup, String, String, ChannelHandler) use `ChannelPipeline.addBefore(String, String, ChannelHandler)`
io.netty.channel.ChannelPipeline.addFirst(EventExecutorGroup, ChannelHandler...) use `ChannelPipeline.addFirst(String, ChannelHandler)`
io.netty.channel.ChannelPipeline.addFirst(EventExecutorGroup, String, ChannelHandler) use `ChannelPipeline.addFirst(String, ChannelHandler)`
io.netty.channel.ChannelPipeline.addLast(EventExecutorGroup, ChannelHandler...) use `ChannelPipeline.addLast(ChannelHandler...)`
io.netty.channel.ChannelPipeline.addLast(EventExecutorGroup, String, ChannelHandler) use `ChannelPipeline.addLast(String, ChannelHandler)`
io.netty.channel.ChannelHandlerContext.attr(AttributeKey<T>) Use `AttributeMap.attr(AttributeKey)`
io.netty.bootstrap.AbstractBootstrap.channelFactory(ChannelFactory<? extends C>) Use `AbstractBootstrap.channelFactory(io.netty.channel.ChannelFactory)` instead.
io.netty.bootstrap.ServerBootstrap.childGroup() Use `ServerBootstrap.config()` instead.
io.netty.channel.AbstractCoalescingBufferQueue.composeFirst(ByteBufAllocator, ByteBuf) Use {AbstractCoalescingBufferQueue#composeFirst(ByteBufAllocator, ByteBuf, int)}
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 are matched by the given `ChannelMatcher`. Please note that this operation is asynchronous as `Channel.deregister()` is.
io.netty.channel.AbstractChannel.doRegister() use `AbstractChannel.doRegister(ChannelPromise)`
io.netty.channel.ChannelHandlerAdapter.exceptionCaught(ChannelHandlerContext, Throwable) is part of `ChannelInboundHandler`
io.netty.channel.ChannelHandler.exceptionCaught(ChannelHandlerContext, Throwable) if you want to handle this event you should implement `ChannelInboundHandler` and implement the method there.
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.channel.ChannelConfig.getMaxMessagesPerRead() Use `MaxMessagesRecvByteBufAllocator` and `MaxMessagesRecvByteBufAllocator.maxMessagesPerRead()`. Returns the maximum number of messages to read per read loop. a `channelRead()` event. If this value is greater than 1, an event loop might attempt to read multiple times to procure multiple messages.
io.netty.channel.DefaultChannelConfig.getMaxMessagesPerRead()
io.netty.bootstrap.AbstractBootstrap.group() Use `AbstractBootstrap.config()` instead.
io.netty.channel.ChannelHandlerContext.hasAttr(AttributeKey<T>) Use `AttributeMap.hasAttr(AttributeKey)`
io.netty.channel.AbstractChannel.invalidateLocalAddress() no use-case for this.
io.netty.channel.AbstractChannel.invalidateRemoteAddress() no use-case for this.
io.netty.channel.oio.AbstractOioChannel.isReadPending() No longer supported. No longer supported.
io.netty.channel.nio.AbstractNioChannel.isReadPending() No longer supported. No longer supported.
io.netty.channel.embedded.EmbeddedChannel.lastInboundBuffer() use `EmbeddedChannel.inboundMessages()`
io.netty.channel.embedded.EmbeddedChannel.lastOutboundBuffer() use `EmbeddedChannel.outboundMessages()`
io.netty.channel.ChannelOption.newInstance(String) use `ChannelOption.valueOf(String)`.
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.channel.ChannelOutboundBuffer.recycle()
io.netty.channel.IoEventLoop.register(Channel) Use `IoEventLoop.register(IoHandle)`
io.netty.channel.EventLoopGroup.register(Channel, ChannelPromise) Use `EventLoopGroup.register(ChannelPromise)` instead.
io.netty.channel.SingleThreadEventLoop.register(Channel, ChannelPromise)
io.netty.channel.ThreadPerChannelEventLoopGroup.register(Channel, ChannelPromise)
io.netty.channel.MultithreadEventLoopGroup.register(Channel, ChannelPromise)
io.netty.channel.ThreadPerChannelEventLoop.register(Channel, ChannelPromise)
io.netty.channel.IoEventLoop.register(ChannelPromise) Use `IoEventLoop.register(IoHandle)`
io.netty.channel.nio.AbstractNioChannel.selectionKey() use `AbstractNioChannel.registration`.
io.netty.channel.nio.NioEventLoop.setIoRatio(int)
io.netty.channel.nio.NioEventLoopGroup.setIoRatio(int)
io.netty.channel.ChannelConfig.setMaxMessagesPerRead(int) Use `MaxMessagesRecvByteBufAllocator` and `MaxMessagesRecvByteBufAllocator.maxMessagesPerRead(int)`. Sets the maximum number of messages to read per read loop. If this value is greater than 1, an event loop might attempt to read multiple times to procure multiple messages.
io.netty.channel.DefaultChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.DefaultServerSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.DefaultDatagramChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.DuplexChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.DefaultSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.DatagramChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.ServerSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.SocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.oio.OioServerSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.oio.DefaultOioSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.oio.DefaultOioServerSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.socket.oio.OioSocketChannelConfig.setMaxMessagesPerRead(int)
io.netty.channel.oio.AbstractOioChannel.setReadPending(boolean) Use `AbstractOioChannel.clearReadPending()` if appropriate instead. No longer supported.
io.netty.channel.nio.AbstractNioChannel.setReadPending(boolean) Use `AbstractNioChannel.clearReadPending()` if appropriate instead. No longer supported.
io.netty.channel.socket.oio.OioServerSocketChannel.setReadPending(boolean)
io.netty.channel.socket.oio.OioSocketChannel.setReadPending(boolean)
io.netty.channel.socket.nio.NioDatagramChannel.setReadPending(boolean)
io.netty.channel.ThreadPerChannelEventLoopGroup.shutdown()
io.netty.channel.FileRegion.transfered() Use `FileRegion.transferred()` instead.
io.netty.channel.DefaultFileRegion.transfered()

Deprecated Constructors
Constructor and Description
io.netty.channel.ChannelOption(String)
io.netty.channel.socket.oio.DefaultOioServerSocketChannelConfig(ServerSocketChannel, ServerSocket)
io.netty.channel.socket.oio.DefaultOioSocketChannelConfig(SocketChannel, Socket)
io.netty.channel.socket.nio.NioDatagramChannel(InternetProtocolFamily) use `NioDatagramChannel(SocketProtocolFamily)`
io.netty.channel.socket.nio.NioDatagramChannel(SelectorProvider, InternetProtocolFamily) use `NioDatagramChannel(SelectorProvider, SocketProtocolFamily)`
io.netty.channel.socket.nio.NioServerSocketChannel(SelectorProvider, InternetProtocolFamily) use `NioServerSocketChannel(SelectorProvider, SocketProtocolFamily)`
io.netty.channel.socket.nio.NioSocketChannel(SelectorProvider, InternetProtocolFamily) use `NioSocketChannel(SelectorProvider, SocketProtocolFamily)`

Deprecated API

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