Log connection errors

src/main/java/xyz/nucleoid/extras/mixin/debug/ClientConnectionMixin.java

@@ -0,0 +1,19 @@
+package xyz.nucleoid.extras.mixin.debug;
+
+import io.netty.handler.timeout.TimeoutException;
+import net.minecraft.network.ClientConnection;
+import org.slf4j.Logger;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(ClientConnection.class)
+public class ClientConnectionMixin {
+    @Redirect(method = "exceptionCaught", at = @At(value = "INVOKE", target = "Lorg/slf4j/Logger;debug(Ljava/lang/String;Ljava/lang/Throwable;)V"))
+    private void printError(Logger instance, String s, Throwable throwable) {
+        if (throwable instanceof TimeoutException) {
+            return;
+        }
+        instance.error(s, throwable);
+    }
+}

src/main/resources/extras.mixins.json

@@ -12,6 +12,7 @@
     "compat.ServerWorldMixin",
     "datafixer.ItemStackComponentizationFixMixin",
     "datafixer.Schema1460Mixin",
+    "debug.ClientConnectionMixin",
     "debug.EntityMixin",
     "lobby.ArmorStandEntityAccessor",
     "lobby.BeaconBlockEntityMixin",