Switch to Reactor 2022.0.0 snapshots

See gh-28766

build.gradle

@@ -29,7 +29,7 @@ configure(allprojects) { project ->
 		imports {
 			mavenBom "com.fasterxml.jackson:jackson-bom:2.13.3"
 			mavenBom "io.netty:netty-bom:4.1.77.Final"
-			mavenBom "io.projectreactor:reactor-bom:2022.0.0-M2"
+			mavenBom "io.projectreactor:reactor-bom:2022.0.0-SNAPSHOT"
 			mavenBom "io.r2dbc:r2dbc-bom:Borca-SR1"
 			mavenBom "io.rsocket:rsocket-bom:1.1.2"
 			mavenBom "org.eclipse.jetty:jetty-bom:11.0.9"
@@ -252,7 +252,7 @@ configure(allprojects) { project ->
 		repositories {
 			mavenCentral()
 			maven { url "https://repo.spring.io/libs-spring-framework-build" }
-			maven { url "https://repo.spring.io/milestone"}
+			maven { url "https://repo.spring.io/snapshot"} // Reactor
 		}
 	}
 	configurations.all {

spring-web/src/test/java/org/springframework/http/codec/multipart/MultipartHttpMessageWriterTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import java.time.Duration;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import org.junit.jupiter.api.Test;
 import reactor.core.publisher.Flux;
@@ -240,12 +241,13 @@ public class MultipartHttpMessageWriterTests extends AbstractLeakCheckingTests {
 
 	@Test // SPR-16402
 	public void singleSubscriberWithStrings() {
-		@SuppressWarnings("deprecation")
-		reactor.core.publisher.UnicastProcessor<String> processor = reactor.core.publisher.UnicastProcessor.create();
-		Flux.just("foo", "bar", "baz").subscribe(processor);
+		AtomicBoolean subscribed = new AtomicBoolean();
+		Flux<String> publisher = Flux.just("foo", "bar", "baz")
+				.doOnSubscribe(subscription ->
+						assertThat(subscribed.compareAndSet(false, true)).isTrue());
 
 		MultipartBodyBuilder bodyBuilder = new MultipartBodyBuilder();
-		bodyBuilder.asyncPart("name", processor, String.class);
+		bodyBuilder.asyncPart("name", publisher, String.class);
 
 		Mono<MultiValueMap<String, HttpEntity<?>>> result = Mono.just(bodyBuilder.build());
 

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/AbstractListenerWebSocketSession.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -66,10 +66,6 @@ public abstract class AbstractListenerWebSocketSession<T> extends AbstractWebSoc
 	@Nullable
 	private final Sinks.Empty<Void> handlerCompletionSink;
 
-	@Nullable
-	@SuppressWarnings("deprecation")
-	private final reactor.core.publisher.MonoProcessor<Void> handlerCompletionMono;
-
 	private final WebSocketReceivePublisher receivePublisher;
 
 	@Nullable
@@ -90,7 +86,7 @@ public abstract class AbstractListenerWebSocketSession<T> extends AbstractWebSoc
 	public AbstractListenerWebSocketSession(
 			T delegate, String id, HandshakeInfo info, DataBufferFactory bufferFactory) {
 
-		this(delegate, id, info, bufferFactory, (Sinks.Empty<Void>) null);
+		this(delegate, id, info, bufferFactory, null);
 	}
 
 	/**
@@ -105,25 +101,6 @@ public abstract class AbstractListenerWebSocketSession<T> extends AbstractWebSoc
 		super(delegate, id, info, bufferFactory);
 		this.receivePublisher = new WebSocketReceivePublisher();
 		this.handlerCompletionSink = handlerCompletionSink;
-		this.handlerCompletionMono = null;
-	}
-
-	/**
-	 * Alternative constructor with completion MonoProcessor to use to signal
-	 * when the handling of the session is complete, with success or error.
-	 * <p>Primarily for use with {@code WebSocketClient} to be able to
-	 * communicate the end of handling.
-	 * @deprecated as of 5.3 in favor of
-	 * {@link #AbstractListenerWebSocketSession(Object, String, HandshakeInfo, DataBufferFactory, Sinks.Empty)}
-	 */
-	@Deprecated
-	public AbstractListenerWebSocketSession(T delegate, String id, HandshakeInfo info,
-			DataBufferFactory bufferFactory, @Nullable reactor.core.publisher.MonoProcessor<Void> handlerCompletion) {
-
-		super(delegate, id, info, bufferFactory);
-		this.receivePublisher = new WebSocketReceivePublisher();
-		this.handlerCompletionMono = handlerCompletion;
-		this.handlerCompletionSink = null;
 	}
 
 
@@ -244,9 +221,6 @@ public abstract class AbstractListenerWebSocketSession<T> extends AbstractWebSoc
 			// Ignore result: can't overflow, ok if not first or no one listens
 			this.handlerCompletionSink.tryEmitError(ex);
 		}
-		if (this.handlerCompletionMono != null) {
-			this.handlerCompletionMono.onError(ex);
-		}
 		close(CloseStatus.SERVER_ERROR.withReason(ex.getMessage()));
 	}
 
@@ -256,9 +230,6 @@ public abstract class AbstractListenerWebSocketSession<T> extends AbstractWebSoc
 			// Ignore result: can't overflow, ok if not first or no one listens
 			this.handlerCompletionSink.tryEmitEmpty();
 		}
-		if (this.handlerCompletionMono != null) {
-			this.handlerCompletionMono.onComplete();
-		}
 		close();
 	}
 

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/JettyWebSocketSession.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class JettyWebSocketSession extends AbstractListenerWebSocketSession<Sess
 
 
 	public JettyWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory) {
-		this(session, info, factory, (Sinks.Empty<Void>) null);
+		this(session, info, factory, null);
 	}
 
 	public JettyWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory,
@@ -61,13 +61,6 @@ public class JettyWebSocketSession extends AbstractListenerWebSocketSession<Sess
 		// suspendReceiving();
 	}
 
-	@Deprecated
-	public JettyWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory,
-			@Nullable reactor.core.publisher.MonoProcessor<Void> completionMono) {
-
-		super(session, ObjectUtils.getIdentityHexString(session), info, factory, completionMono);
-	}
-
 
 	@Override
 	protected boolean canSuspendReceiving() {

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/StandardWebSocketSession.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,7 +46,7 @@ import org.springframework.web.reactive.socket.WebSocketSession;
 public class StandardWebSocketSession extends AbstractListenerWebSocketSession<Session> {
 
 	public StandardWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory) {
-		this(session, info, factory, (Sinks.Empty<Void>) null);
+		this(session, info, factory, null);
 	}
 
 	public StandardWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory,
@@ -55,13 +55,6 @@ public class StandardWebSocketSession extends AbstractListenerWebSocketSession<S
 		super(session, session.getId(), info, factory, completionSink);
 	}
 
-	@Deprecated
-	public StandardWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory,
-			@Nullable reactor.core.publisher.MonoProcessor<Void> completionMono) {
-
-		super(session, session.getId(), info, factory, completionMono);
-	}
-
 
 	@Override
 	protected boolean canSuspendReceiving() {

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/TomcatWebSocketSession.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -53,14 +53,6 @@ public class TomcatWebSocketSession extends StandardWebSocketSession {
 		suspendReceiving();
 	}
 
-	@Deprecated
-	public TomcatWebSocketSession(Session session, HandshakeInfo info, DataBufferFactory factory,
-			reactor.core.publisher.MonoProcessor<Void> completionMono) {
-
-		super(session, info, factory, completionMono);
-		suspendReceiving();
-	}
-
 
 	@Override
 	protected boolean canSuspendReceiving() {

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/UndertowWebSocketSession.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -48,7 +48,7 @@ import org.springframework.web.reactive.socket.WebSocketSession;
 public class UndertowWebSocketSession extends AbstractListenerWebSocketSession<WebSocketChannel> {
 
 	public UndertowWebSocketSession(WebSocketChannel channel, HandshakeInfo info, DataBufferFactory factory) {
-		this(channel, info, factory, (Sinks.Empty<Void>) null);
+		this(channel, info, factory, null);
 	}
 
 	public UndertowWebSocketSession(WebSocketChannel channel, HandshakeInfo info,
@@ -58,14 +58,6 @@ public class UndertowWebSocketSession extends AbstractListenerWebSocketSession<W
 		suspendReceiving();
 	}
 
-	@Deprecated
-	public UndertowWebSocketSession(WebSocketChannel channel, HandshakeInfo info,
-			DataBufferFactory factory, @Nullable reactor.core.publisher.MonoProcessor<Void> completionMono) {
-
-		super(channel, ObjectUtils.getIdentityHexString(channel), info, factory, completionMono);
-		suspendReceiving();
-	}
-
 
 	@Override
 	protected boolean canSuspendReceiving() {