From efb414ba44182ffcb9ef6fb14c343a7399631e7c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Arnaud=20Cogolu=C3=A8gnes?=
 <514737+acogoluegnes@users.noreply.github.com>
Date: Wed, 3 Dec 2025 10:23:53 +0100
Subject: [PATCH] Revert ConnectionFactory return type in some methods

Some changes from main snuck into 5.x during a merge. This affects 3
methods in ConnectionFactory that used to return void and returned
ConnectionFactory because of the unexpected merge.

The change is source-compatible but not binary-compatible. It should not
affect many users, but we try to stick to backward compatibility so we
go back to returning void.

References #1810
---
 src/main/java/com/rabbitmq/client/ConnectionFactory.java | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/main/java/com/rabbitmq/client/ConnectionFactory.java b/src/main/java/com/rabbitmq/client/ConnectionFactory.java
index 416f8baa9..25c1ec0cd 100644
--- a/src/main/java/com/rabbitmq/client/ConnectionFactory.java
+++ b/src/main/java/com/rabbitmq/client/ConnectionFactory.java
@@ -1382,9 +1382,8 @@ public Connection newConnection(
    * @deprecated user {@link #netty()} instead
    */
   @Deprecated
-  public ConnectionFactory setNioParams(NioParams nioParams) {
+  public void setNioParams(NioParams nioParams) {
     this.nioParams = nioParams;
-    return this;
   }
 
   /**
@@ -1415,20 +1414,18 @@ public NioParams getNioParams() {
    * @deprecated Use {@link #netty()} instead
    */
   @Deprecated
-  public ConnectionFactory useNio() {
+  public void useNio() {
     this.nio = true;
     this.netty = false;
-    return this;
   }
 
   /**
    * Use blocking IO for communication with the server. With blocking IO, each connection creates
    * its own thread to read data from the server.
    */
-  public ConnectionFactory useBlockingIo() {
+  public void useBlockingIo() {
     this.nio = false;
     this.netty = false;
-    return this;
   }
 
   /**