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refactor(netty): migrate off the deprecated NioEventLoopGroup (Netty 4.2)

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Netty 4.2 deprecates NioEventLoopGroup in favour of the generic
MultiThreadIoEventLoopGroup driven by an IoHandlerFactory. Server.java now
builds its boss/worker groups with MultiThreadIoEventLoopGroup(..,
NioIoHandler.newFactory()) — functionally equivalent, and the codebase now
compiles with zero deprecation warnings. Verified: compile, 15/15 tests, shaded
jar.
This commit is contained in:
simoleo89
2026-06-09 16:19:58 +00:00
parent fad6be158a
commit 62104596ac
1 changed files with 6 additions and 3 deletions
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Emulator/src/main/java/com/eu/habbo/networking/Server.java
+6 -3
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@@ -9,7 +9,8 @@ import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption; import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup; import io.netty.channel.EventLoopGroup;
import io.netty.channel.FixedRecvByteBufAllocator; import io.netty.channel.FixedRecvByteBufAllocator;
import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.MultiThreadIoEventLoopGroup;
import io.netty.channel.nio.NioIoHandler;
import io.netty.channel.socket.nio.NioServerSocketChannel; import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.util.concurrent.DefaultThreadFactory; import io.netty.util.concurrent.DefaultThreadFactory;
import org.slf4j.Logger; import org.slf4j.Logger;
@@ -59,8 +60,10 @@ public abstract class Server {
String threadName = name.replace("Server", "").replace(" ", ""); String threadName = name.replace("Server", "").replace(" ", "");
this.bossGroup = new NioEventLoopGroup(bossGroupThreads, new DefaultThreadFactory(threadName + "Boss")); // Netty 4.2: NioEventLoopGroup is deprecated in favour of the generic
this.workerGroup = new NioEventLoopGroup(workerGroupThreads, new DefaultThreadFactory(threadName + "Worker")); // MultiThreadIoEventLoopGroup driven by an IoHandlerFactory (NIO here).
this.bossGroup = new MultiThreadIoEventLoopGroup(bossGroupThreads, new DefaultThreadFactory(threadName + "Boss"), NioIoHandler.newFactory());
this.workerGroup = new MultiThreadIoEventLoopGroup(workerGroupThreads, new DefaultThreadFactory(threadName + "Worker"), NioIoHandler.newFactory());
this.serverBootstrap = new ServerBootstrap(); this.serverBootstrap = new ServerBootstrap();
} }