Switch to Reactor 3 snapshots and Netty 4.1.3

build.gradle

@@ -61,13 +61,13 @@ configure(allprojects) { project ->
 	ext.junitJupiterVersion  = '5.0.0-M1'
 	ext.junitPlatformVersion = '1.0.0-M1'
 	ext.log4jVersion         = '2.6.1'
-	ext.nettyVersion         = "4.1.1.Final"
+	ext.nettyVersion         = "4.1.3.Final"
 	ext.okhttpVersion        = "2.7.5"
 	ext.okhttp3Version       = "3.3.1"
 	ext.poiVersion           = "3.14"
 	ext.reactorVersion       = "2.0.8.RELEASE"
-	ext.reactorCoreVersion   = '2.5.0.BUILD-SNAPSHOT'
-	ext.reactorNettyVersion  = '2.5.0.BUILD-SNAPSHOT'
+	ext.reactorCoreVersion   = '3.0.0.BUILD-SNAPSHOT'
+	ext.reactorNettyVersion  = '0.5.0.BUILD-SNAPSHOT'
 	ext.rxJavaVersion        = '1.1.6'
 	ext.romeVersion          = "1.6.0"
 	ext.servletVersion       = "3.1.0"

spring-core/src/main/java/org/springframework/core/convert/support/ReactorToRxJava1Converter.java

@@ -20,9 +20,7 @@ import java.util.LinkedHashSet;
 import java.util.Set;
 
 import org.reactivestreams.Publisher;
-import reactor.core.converter.RxJava1CompletableConverter;
-import reactor.core.converter.RxJava1ObservableConverter;
-import reactor.core.converter.RxJava1SingleConverter;
+import reactor.adapter.RxJava1Adapter;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import rx.Completable;
@@ -57,22 +55,22 @@ public final class ReactorToRxJava1Converter implements GenericConverter {
 			return null;
 		}
 		if (Observable.class.isAssignableFrom(sourceType.getType())) {
-			return RxJava1ObservableConverter.toPublisher((Observable<?>) source);
+			return RxJava1Adapter.observableToFlux((Observable<?>) source);
 		}
 		else if (Observable.class.isAssignableFrom(targetType.getType())) {
-			return RxJava1ObservableConverter.fromPublisher((Publisher<?>) source);
+			return RxJava1Adapter.publisherToObservable((Publisher<?>) source);
 		}
 		else if (Single.class.isAssignableFrom(sourceType.getType())) {
-			return RxJava1SingleConverter.toPublisher((Single<?>) source);
+			return RxJava1Adapter.singleToMono((Single<?>) source);
 		}
 		else if (Single.class.isAssignableFrom(targetType.getType())) {
-			return RxJava1SingleConverter.fromPublisher((Publisher<?>) source);
+			return RxJava1Adapter.publisherToSingle((Publisher<?>) source);
 		}
 		else if (Completable.class.isAssignableFrom(sourceType.getType())) {
-			return RxJava1CompletableConverter.toPublisher((Completable) source);
+			return RxJava1Adapter.completableToMono((Completable) source);
 		}
 		else if (Completable.class.isAssignableFrom(targetType.getType())) {
-			return RxJava1CompletableConverter.fromPublisher((Publisher<?>) source);
+			return RxJava1Adapter.publisherToCompletable((Publisher<?>) source);
 		}
 		return null;
 	}

spring-core/src/main/java/org/springframework/core/io/buffer/support/DataBufferUtils.java

@@ -27,7 +27,7 @@ import java.util.function.Consumer;
 
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Flux;
-import reactor.core.subscriber.SignalEmitter;
+import reactor.core.publisher.SynchronousSink;
 
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DataBufferFactory;
@@ -149,7 +149,7 @@ public abstract class DataBufferUtils {
 	}
 
 	private static class ReadableByteChannelGenerator
-			implements BiFunction<ReadableByteChannel, SignalEmitter<DataBuffer>,
+			implements BiFunction<ReadableByteChannel, SynchronousSink<DataBuffer>,
 						ReadableByteChannel> {
 
 		private final DataBufferFactory dataBufferFactory;
@@ -164,7 +164,7 @@ public abstract class DataBufferUtils {
 
 		@Override
 		public ReadableByteChannel apply(ReadableByteChannel
-				channel, SignalEmitter<DataBuffer>	sub) {
+				channel, SynchronousSink<DataBuffer>	sub) {
 			try {
 				ByteBuffer byteBuffer = ByteBuffer.allocate(chunkSize);
 				int read;

spring-core/src/test/java/org/springframework/core/codec/ByteBufferDecoderTests.java

@@ -21,7 +21,7 @@ import java.nio.ByteBuffer;
 import org.junit.Test;
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-core/src/test/java/org/springframework/core/codec/ByteBufferEncoderTests.java

@@ -23,7 +23,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-core/src/test/java/org/springframework/core/codec/ResourceDecoderTests.java

@@ -20,7 +20,7 @@ import java.io.IOException;
 
 import org.junit.Test;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.ByteArrayResource;

spring-core/src/test/java/org/springframework/core/codec/ResourceEncoderTests.java

@@ -21,7 +21,7 @@ import java.nio.charset.StandardCharsets;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.ByteArrayResource;

spring-core/src/test/java/org/springframework/core/codec/StringDecoderTests.java

@@ -19,7 +19,7 @@ package org.springframework.core.codec;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-core/src/test/java/org/springframework/core/codec/StringEncoderTests.java

@@ -23,7 +23,7 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-core/src/test/java/org/springframework/core/io/buffer/support/DataBufferUtilsTests.java

@@ -24,7 +24,7 @@ import java.nio.file.StandardOpenOption;
 
 import org.junit.Test;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;
 import org.springframework.core.io.buffer.DataBuffer;

spring-web-reactive/src/main/java/org/springframework/web/reactive/config/WebReactiveConfiguration.java

@@ -20,8 +20,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import reactor.core.converter.Converters;
-
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.BeanInitializationException;
 import org.springframework.context.ApplicationContext;
@@ -82,8 +80,9 @@ public class WebReactiveConfiguration implements ApplicationContextAware {
 			ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
 					ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
 
-	private static final boolean jaxb2Present =
-			ClassUtils.isPresent("javax.xml.bind.Binder", classLoader);
+	private static final boolean jaxb2Present = ClassUtils.isPresent("javax.xml.bind.Binder", classLoader);
+
+	private static final boolean rxJava1Present = ClassUtils.isPresent("rx.Observable", classLoader);
 
 
 	private PathMatchConfigurer pathMatchConfigurer;
@@ -289,7 +288,7 @@ public class WebReactiveConfiguration implements ApplicationContextAware {
 	 */
 	protected void addFormatters(FormatterRegistry registry) {
 		registry.addConverter(new MonoToCompletableFutureConverter());
-		if (Converters.hasRxJava1()) {
+		if (rxJava1Present) {
 			registry.addConverter(new ReactorToRxJava1Converter());
 		}
 	}

spring-web-reactive/src/test/java/org/springframework/web/reactive/DispatcherHandlerErrorTests.java

@@ -24,7 +24,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;

spring-web-reactive/src/test/java/org/springframework/web/reactive/ResponseStatusExceptionHandlerTests.java

@@ -21,7 +21,7 @@ import java.time.Duration;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpStatus;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/HandlerMethodMappingTests.java

@@ -27,7 +27,7 @@ import java.util.Set;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.server.reactive.MockServerHttpRequest;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/InvocableHandlerMethodTests.java

@@ -22,7 +22,7 @@ import java.util.Optional;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.server.reactive.MockServerHttpRequest;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/RequestMappingInfoHandlerMappingTests.java

@@ -30,7 +30,7 @@ import java.util.function.Consumer;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.annotation.AnnotatedElementUtils;
 import org.springframework.core.annotation.AnnotationUtils;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/CookieValueMethodArgumentResolverTests.java

@@ -22,7 +22,7 @@ import java.net.URI;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.core.MethodParameter;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/HttpEntityArgumentResolverTests.java

@@ -25,11 +25,10 @@ import java.util.concurrent.CompletableFuture;
 
 import org.junit.Before;
 import org.junit.Test;
-import reactor.core.converter.RxJava1ObservableConverter;
-import reactor.core.converter.RxJava1SingleConverter;
+import reactor.adapter.RxJava1Adapter;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 import rx.Observable;
 import rx.Single;
 
@@ -156,7 +155,7 @@ public class HttpEntityArgumentResolverTests {
 		ResolvableType type = httpEntityType(forClassWithGenerics(Single.class, String.class));
 		HttpEntity<Single<String>> entity = resolveValueWithEmptyBody(type);
 
-		TestSubscriber.subscribe(RxJava1SingleConverter.toPublisher(entity.getBody()))
+		TestSubscriber.subscribe(RxJava1Adapter.singleToMono(entity.getBody()))
 				.assertNoValues()
 				.assertError(ServerWebInputException.class);
 	}
@@ -166,7 +165,7 @@ public class HttpEntityArgumentResolverTests {
 		ResolvableType type = httpEntityType(forClassWithGenerics(Observable.class, String.class));
 		HttpEntity<Observable<String>> entity = resolveValueWithEmptyBody(type);
 
-		TestSubscriber.subscribe(RxJava1ObservableConverter.toPublisher(entity.getBody()))
+		TestSubscriber.subscribe(RxJava1Adapter.observableToFlux(entity.getBody()))
 				.assertNoError()
 				.assertComplete()
 				.assertNoValues();

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/MessageConverterArgumentResolverTests.java

@@ -34,7 +34,7 @@ import org.junit.Ignore;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 import rx.Observable;
 import rx.Single;
 

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/MessageConverterResultHandlerTests.java

@@ -33,7 +33,7 @@ import org.junit.Ignore;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 import rx.Observable;
 
 import org.springframework.core.MethodParameter;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/PathVariableMethodArgumentResolverTests.java

@@ -24,7 +24,7 @@ import java.util.Map;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.MethodParameter;
 import org.springframework.core.convert.ConversionService;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/RequestAttributeMethodArgumentResolverTests.java

@@ -22,7 +22,7 @@ import java.util.Optional;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.core.DefaultParameterNameDiscoverer;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/RequestBodyArgumentResolverTests.java

@@ -27,11 +27,10 @@ import java.util.function.Predicate;
 
 import org.junit.Before;
 import org.junit.Test;
-import reactor.core.converter.RxJava1ObservableConverter;
-import reactor.core.converter.RxJava1SingleConverter;
+import reactor.adapter.RxJava1Adapter;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 import rx.Observable;
 import rx.Single;
 
@@ -166,12 +165,12 @@ public class RequestBodyArgumentResolverTests {
 		ResolvableType type = forClassWithGenerics(Single.class, String.class);
 
 		Single<String> single = resolveValueWithEmptyBody(type, true);
-		TestSubscriber.subscribe(RxJava1SingleConverter.toPublisher(single))
+		TestSubscriber.subscribe(RxJava1Adapter.singleToMono(single))
 				.assertNoValues()
 				.assertError(ServerWebInputException.class);
 
 		single = resolveValueWithEmptyBody(type, false);
-		TestSubscriber.subscribe(RxJava1SingleConverter.toPublisher(single))
+		TestSubscriber.subscribe(RxJava1Adapter.singleToMono(single))
 				.assertNoValues()
 				.assertError(ServerWebInputException.class);
 	}
@@ -181,12 +180,12 @@ public class RequestBodyArgumentResolverTests {
 		ResolvableType type = forClassWithGenerics(Observable.class, String.class);
 
 		Observable<String> observable = resolveValueWithEmptyBody(type, true);
-		TestSubscriber.subscribe(RxJava1ObservableConverter.toPublisher(observable))
+		TestSubscriber.subscribe(RxJava1Adapter.observableToFlux(observable))
 				.assertNoValues()
 				.assertError(ServerWebInputException.class);
 
 		observable = resolveValueWithEmptyBody(type, false);
-		TestSubscriber.subscribe(RxJava1ObservableConverter.toPublisher(observable))
+		TestSubscriber.subscribe(RxJava1Adapter.observableToFlux(observable))
 				.assertNoValues()
 				.assertComplete();
 	}

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/RequestHeaderMethodArgumentResolverTests.java

@@ -27,7 +27,7 @@ import java.util.Map;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.core.MethodParameter;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/RequestParamMethodArgumentResolverTests.java

@@ -25,7 +25,7 @@ import java.util.Optional;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
 import org.springframework.core.MethodParameter;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/ResponseEntityResultHandlerTests.java

@@ -26,7 +26,7 @@ import java.util.concurrent.CompletableFuture;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 import rx.Single;
 
 import org.springframework.core.MethodParameter;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/SessionAttributeMethodArgumentResolverTests.java

@@ -22,7 +22,7 @@ import java.util.Optional;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.core.DefaultParameterNameDiscoverer;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/method/annotation/SseIntegrationTests.java

@@ -28,7 +28,7 @@ import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/HttpMessageConverterViewTests.java

@@ -29,7 +29,7 @@ import java.util.Map;
 
 import org.junit.Before;
 import org.junit.Test;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.MethodParameter;
 import org.springframework.core.codec.StringEncoder;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/ViewResolutionResultHandlerTests.java

@@ -32,7 +32,7 @@ import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 import rx.Single;
 
 import org.springframework.core.MethodParameter;

spring-web-reactive/src/test/java/org/springframework/web/reactive/result/view/freemarker/FreeMarkerViewTests.java

@@ -25,7 +25,7 @@ import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.context.ApplicationContextException;
 import org.springframework.context.support.GenericApplicationContext;

spring-web/src/main/java/org/springframework/http/server/reactive/AbstractRequestBodyPublisher.java

@@ -28,7 +28,7 @@ import org.apache.commons.logging.LogFactory;
 import org.reactivestreams.Publisher;
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
-import reactor.core.util.BackpressureUtils;
+import reactor.core.publisher.Operators;
 
 import org.springframework.core.io.buffer.DataBuffer;
 
@@ -106,7 +106,7 @@ abstract class AbstractRequestBodyPublisher implements Publisher<DataBuffer> {
 		while (hasDemand()) {
 			DataBuffer dataBuffer = read();
 			if (dataBuffer != null) {
-				BackpressureUtils.getAndSub(this.demand, 1L);
+				Operators.getAndSub(this.demand, 1L);
 				this.subscriber.onNext(dataBuffer);
 			}
 			else {
@@ -214,8 +214,8 @@ abstract class AbstractRequestBodyPublisher implements Publisher<DataBuffer> {
 		NO_DEMAND {
 			@Override
 			void request(AbstractRequestBodyPublisher publisher, long n) {
-				if (BackpressureUtils.checkRequest(n, publisher.subscriber)) {
-					BackpressureUtils.addAndGet(publisher.demand, n);
+				if (Operators.checkRequest(n, publisher.subscriber)) {
+					Operators.addAndGet(publisher.demand, n);
 					if (publisher.changeState(this, DEMAND)) {
 						publisher.checkOnDataAvailable();
 					}
@@ -249,8 +249,8 @@ abstract class AbstractRequestBodyPublisher implements Publisher<DataBuffer> {
 		READING {
 			@Override
 			void request(AbstractRequestBodyPublisher publisher, long n) {
-				if (BackpressureUtils.checkRequest(n, publisher.subscriber)) {
-					BackpressureUtils.addAndGet(publisher.demand, n);
+				if (Operators.checkRequest(n, publisher.subscriber)) {
+					Operators.addAndGet(publisher.demand, n);
 				}
 			}
 		},

spring-web/src/main/java/org/springframework/http/server/reactive/ChannelSendOperator.java

@@ -21,8 +21,8 @@ import org.reactivestreams.Publisher;
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 import reactor.core.publisher.MonoSource;
-import reactor.core.subscriber.SubscriberBarrier;
-import reactor.core.util.EmptySubscription;
+import reactor.core.publisher.OperatorAdapter;
+import reactor.core.publisher.Operators;
 
 import org.springframework.util.Assert;
 
@@ -54,7 +54,7 @@ public class ChannelSendOperator<T> extends MonoSource<T, Void> {
 		source.subscribe(new WriteWithBarrier(s));
 	}
 
-	private class WriteWithBarrier extends SubscriberBarrier<T, Void> implements Publisher<T> {
+	private class WriteWithBarrier extends OperatorAdapter<T, Void> implements Publisher<T> {
 
 		/**
 		 * We've at at least one emission, we've called the write function, the write
@@ -161,7 +161,7 @@ public class ChannelSendOperator<T> extends MonoSource<T, Void> {
 				this.writeSubscriber = writeSubscriber;
 
 				if (this.error != null || this.completed) {
-					this.writeSubscriber.onSubscribe(EmptySubscription.INSTANCE);
+					this.writeSubscriber.onSubscribe(Operators.emptySubscription());
 					emitCachedSignals();
 				}
 				else {

spring-web/src/main/java/org/springframework/http/server/reactive/ResponseBodyWriteResultPublisher.java

@@ -24,7 +24,7 @@ import org.apache.commons.logging.LogFactory;
 import org.reactivestreams.Publisher;
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
-import reactor.core.util.BackpressureUtils;
+import reactor.core.publisher.Operators;
 
 /**
  * Publisher returned from {@link ServerHttpResponse#writeWith(Publisher)}.
@@ -145,7 +145,7 @@ class ResponseBodyWriteResultPublisher implements Publisher<Void> {
 		SUBSCRIBED {
 			@Override
 			void request(ResponseBodyWriteResultPublisher publisher, long n) {
-				BackpressureUtils.checkRequest(n, publisher.subscriber);
+				Operators.checkRequest(n, publisher.subscriber);
 			}
 
 			@Override

spring-web/src/main/java/org/springframework/http/server/reactive/RxNettyHttpHandlerAdapter.java

@@ -21,7 +21,7 @@ import io.reactivex.netty.protocol.http.server.HttpServerRequest;
 import io.reactivex.netty.protocol.http.server.HttpServerResponse;
 import io.reactivex.netty.protocol.http.server.RequestHandler;
 import org.reactivestreams.Publisher;
-import reactor.core.converter.RxJava1ObservableConverter;
+import reactor.adapter.RxJava1Adapter;
 import rx.Observable;
 
 import org.springframework.core.io.buffer.NettyDataBufferFactory;
@@ -50,7 +50,7 @@ public class RxNettyHttpHandlerAdapter implements RequestHandler<ByteBuf, ByteBu
 		RxNettyServerHttpResponse adaptedResponse =
 				new RxNettyServerHttpResponse(response, dataBufferFactory);
 		Publisher<Void> result = this.httpHandler.handle(adaptedRequest, adaptedResponse);
-		return RxJava1ObservableConverter.fromPublisher(result);
+		return RxJava1Adapter.publisherToObservable(result);
 	}
 
 }

spring-web/src/main/java/org/springframework/http/server/reactive/RxNettyServerHttpRequest.java

@@ -22,7 +22,7 @@ import java.net.URISyntaxException;
 import io.netty.buffer.ByteBuf;
 import io.netty.handler.codec.http.cookie.Cookie;
 import io.reactivex.netty.protocol.http.server.HttpServerRequest;
-import reactor.core.converter.RxJava1ObservableConverter;
+import reactor.adapter.RxJava1Adapter;
 import reactor.core.publisher.Flux;
 import rx.Observable;
 
@@ -95,7 +95,7 @@ public class RxNettyServerHttpRequest extends AbstractServerHttpRequest {
 	@Override
 	public Flux<DataBuffer> getBody() {
 		Observable<DataBuffer> content = this.request.getContent().map(dataBufferFactory::wrap);
-		return RxJava1ObservableConverter.toPublisher(content);
+		return RxJava1Adapter.observableToFlux(content);
 	}
 
 }

spring-web/src/main/java/org/springframework/http/server/reactive/RxNettyServerHttpResponse.java

@@ -23,8 +23,9 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.handler.codec.http.cookie.Cookie;
 import io.netty.handler.codec.http.cookie.DefaultCookie;
 import io.reactivex.netty.protocol.http.server.HttpServerResponse;
+import io.reactivex.netty.protocol.http.server.ResponseContentWriter;
 import org.reactivestreams.Publisher;
-import reactor.core.converter.RxJava1ObservableConverter;
+import reactor.adapter.RxJava1Adapter;
 import reactor.core.publisher.Mono;
 import rx.Observable;
 
@@ -72,12 +73,15 @@ public class RxNettyServerHttpResponse extends AbstractServerHttpResponse {
 
 	@Override
 	protected Mono<Void> writeWithInternal(Publisher<DataBuffer> body) {
-		Observable<ByteBuf> content = RxJava1ObservableConverter.fromPublisher(body).map(this::toByteBuf);
-		return RxJava1ObservableConverter.toPublisher(this.response.write(content, bb -> bb instanceof FlushingByteBuf)).then();
+		Observable<ByteBuf> content = RxJava1Adapter.publisherToObservable(body).map(this::toByteBuf);
+		ResponseContentWriter<ByteBuf> writer = this.response.write(content, bb -> bb instanceof FlushingByteBuf);
+		return RxJava1Adapter.observableToFlux(writer).then();
 	}
 
 	private ByteBuf toByteBuf(DataBuffer buffer) {
-		ByteBuf byteBuf = (buffer instanceof NettyDataBuffer ? ((NettyDataBuffer) buffer).getNativeBuffer() :  Unpooled.wrappedBuffer(buffer.asByteBuffer()));
+		ByteBuf byteBuf = (buffer instanceof NettyDataBuffer ?
+				((NettyDataBuffer) buffer).getNativeBuffer() :
+				Unpooled.wrappedBuffer(buffer.asByteBuffer()));
 		return (buffer instanceof FlushingDataBuffer ? new FlushingByteBuf(byteBuf) : byteBuf);
 	}
 

spring-web/src/main/java/org/springframework/web/client/reactive/support/RxJava1ClientWebRequestBuilder.java

@@ -18,8 +18,7 @@ package org.springframework.web.client.reactive.support;
 
 import java.net.URI;
 
-import reactor.core.converter.RxJava1ObservableConverter;
-import reactor.core.converter.RxJava1SingleConverter;
+import reactor.adapter.RxJava1Adapter;
 import reactor.core.publisher.Mono;
 import rx.Observable;
 import rx.Single;
@@ -149,7 +148,7 @@ public class RxJava1ClientWebRequestBuilder implements ClientWebRequestBuilder {
 	 * as type information for the element published by this reactive stream
 	 */
 	public RxJava1ClientWebRequestBuilder body(Single<?> content, ResolvableType elementType) {
-		this.delegate.body(RxJava1SingleConverter.toPublisher(content), elementType);
+		this.delegate.body(RxJava1Adapter.singleToMono(content), elementType);
 		return this;
 	}
 
@@ -158,7 +157,7 @@ public class RxJava1ClientWebRequestBuilder implements ClientWebRequestBuilder {
 	 * as type information for the elements published by this reactive stream
 	 */
 	public RxJava1ClientWebRequestBuilder body(Observable<?> content, ResolvableType elementType) {
-		this.delegate.body(RxJava1ObservableConverter.toPublisher(content), elementType);
+		this.delegate.body(RxJava1Adapter.observableToFlux(content), elementType);
 		return this;
 	}
 

spring-web/src/main/java/org/springframework/web/client/reactive/support/RxJava1ResponseExtractors.java

@@ -19,6 +19,12 @@ package org.springframework.web.client.reactive.support;
 import java.util.List;
 import java.util.Optional;
 
+import reactor.adapter.RxJava1Adapter;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+import rx.Observable;
+import rx.Single;
+
 import org.springframework.core.ResolvableType;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
@@ -27,13 +33,6 @@ import org.springframework.http.client.reactive.ClientHttpResponse;
 import org.springframework.http.converter.reactive.HttpMessageConverter;
 import org.springframework.web.client.reactive.ResponseExtractor;
 
-import reactor.core.converter.RxJava1ObservableConverter;
-import reactor.core.converter.RxJava1SingleConverter;
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
-import rx.Observable;
-import rx.Single;
-
 /**
  * Static factory methods for {@link ResponseExtractor}
  * based on the {@link Observable} and {@link Single} APIs.
@@ -50,8 +49,8 @@ public class RxJava1ResponseExtractors {
 	public static <T> ResponseExtractor<Single<T>> body(Class<T> sourceClass) {
 
 		ResolvableType resolvableType = ResolvableType.forClass(sourceClass);
-		return (clientResponse, messageConverters) -> (Single<T>) RxJava1SingleConverter
-				.fromPublisher(clientResponse
+		return (clientResponse, messageConverters) -> (Single<T>) RxJava1Adapter
+				.publisherToSingle(clientResponse
 						.flatMap(resp -> decodeResponseBody(resp, resolvableType, messageConverters)).next());
 	}
 
@@ -61,8 +60,8 @@ public class RxJava1ResponseExtractors {
 	public static <T> ResponseExtractor<Observable<T>> bodyStream(Class<T> sourceClass) {
 
 		ResolvableType resolvableType = ResolvableType.forClass(sourceClass);
-		return (clientResponse, messageConverters) -> RxJava1ObservableConverter
-				.fromPublisher(clientResponse
+		return (clientResponse, messageConverters) -> RxJava1Adapter
+				.publisherToObservable(clientResponse
 						.flatMap(resp -> decodeResponseBody(resp, resolvableType, messageConverters)));
 	}
 
@@ -75,7 +74,7 @@ public class RxJava1ResponseExtractors {
 
 		ResolvableType resolvableType = ResolvableType.forClass(sourceClass);
 		return (clientResponse, messageConverters) ->
-				RxJava1SingleConverter.fromPublisher(clientResponse
+				RxJava1Adapter.publisherToSingle(clientResponse
 						.then(response ->
 								Mono.when(
 										decodeResponseBody(response, resolvableType, messageConverters).next(),
@@ -91,9 +90,9 @@ public class RxJava1ResponseExtractors {
 	 */
 	public static <T> ResponseExtractor<Single<ResponseEntity<Observable<T>>>> responseStream(Class<T> sourceClass) {
 		ResolvableType resolvableType = ResolvableType.forClass(sourceClass);
-		return (clientResponse, messageConverters) -> RxJava1SingleConverter.fromPublisher(
+		return (clientResponse, messageConverters) -> RxJava1Adapter.publisherToSingle(
 				clientResponse.map(response -> new ResponseEntity<>(
-						RxJava1ObservableConverter.fromPublisher(
+						RxJava1Adapter.publisherToObservable(
 								RxJava1ResponseExtractors.<T> decodeResponseBody(response, resolvableType, messageConverters)),
 						response.getHeaders(),
 						response.getStatusCode())));
@@ -103,8 +102,8 @@ public class RxJava1ResponseExtractors {
 	 * Extract the response headers as an {@code HttpHeaders} instance.
 	 */
 	public static ResponseExtractor<Single<HttpHeaders>> headers() {
-		return (clientResponse, messageConverters) -> RxJava1SingleConverter
-				.fromPublisher(clientResponse.map(resp -> resp.getHeaders()));
+		return (clientResponse, messageConverters) -> RxJava1Adapter
+				.publisherToSingle(clientResponse.map(resp -> resp.getHeaders()));
 	}
 
 	@SuppressWarnings("unchecked")

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

@@ -22,7 +22,7 @@ import static org.junit.Assert.*;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-web/src/test/java/org/springframework/http/codec/json/JacksonJsonDecoderTests.java

@@ -23,7 +23,7 @@ import java.util.List;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-web/src/test/java/org/springframework/http/codec/json/JacksonJsonEncoderTests.java

@@ -21,7 +21,7 @@ import com.fasterxml.jackson.annotation.JsonTypeName;
 import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-web/src/test/java/org/springframework/http/codec/json/JsonObjectDecoderTests.java

@@ -20,7 +20,7 @@ import java.nio.charset.StandardCharsets;
 
 import org.junit.Test;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;
 import org.springframework.core.io.buffer.DataBuffer;

spring-web/src/test/java/org/springframework/http/codec/xml/Jaxb2DecoderTests.java

@@ -22,7 +22,7 @@ import javax.xml.stream.events.XMLEvent;
 
 import org.junit.Test;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-web/src/test/java/org/springframework/http/codec/xml/Jaxb2EncoderTests.java

@@ -23,7 +23,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.xml.sax.SAXException;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.ResolvableType;
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;

spring-web/src/test/java/org/springframework/http/codec/xml/XmlEventDecoderTests.java

@@ -20,7 +20,7 @@ import javax.xml.stream.events.XMLEvent;
 
 import org.junit.Test;
 import reactor.core.publisher.Flux;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.io.buffer.AbstractDataBufferAllocatingTestCase;
 

spring-web/src/test/java/org/springframework/http/server/reactive/ChannelSendOperatorTests.java

@@ -29,10 +29,13 @@ import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
+import reactor.core.publisher.OperatorAdapter;
 import reactor.core.publisher.Signal;
-import reactor.core.subscriber.SubscriberBarrier;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
 
 /**
  * @author Rossen Stoyanchev
@@ -145,7 +148,7 @@ public class ChannelSendOperatorTests {
 			};
 		}
 
-		private class WriteSubscriber extends SubscriberBarrier<String, Void> {
+		private class WriteSubscriber extends OperatorAdapter<String, Void> {
 
 			public WriteSubscriber(Subscriber<? super Void> subscriber) {
 				super(subscriber);

spring-web/src/test/java/org/springframework/http/server/reactive/FlushingIntegrationTests.java

@@ -21,7 +21,7 @@ import org.junit.Test;
 
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.FlushingDataBuffer;

spring-web/src/test/java/org/springframework/http/server/reactive/bootstrap/ReactorHttpServer.java

@@ -16,8 +16,7 @@
 
 package org.springframework.http.server.reactive.bootstrap;
 
-import reactor.core.flow.Loopback;
-import reactor.core.state.Completable;
+import reactor.core.Loopback;
 
 import org.springframework.http.server.reactive.ReactorHttpHandlerAdapter;
 import org.springframework.util.Assert;
@@ -25,8 +24,7 @@ import org.springframework.util.Assert;
 /**
  * @author Stephane Maldini
  */
-public class ReactorHttpServer extends HttpServerSupport
-		implements HttpServer, Loopback, Completable {
+public class ReactorHttpServer extends HttpServerSupport implements HttpServer, Loopback {
 
 	private ReactorHttpHandlerAdapter reactorHandler;
 
@@ -34,6 +32,7 @@ public class ReactorHttpServer extends HttpServerSupport
 
 	private boolean running;
 
+
 	@Override
 	public void afterPropertiesSet() throws Exception {
 
@@ -42,6 +41,7 @@ public class ReactorHttpServer extends HttpServerSupport
 		this.reactorServer = reactor.io.netty.http.HttpServer.create(getHost(), getPort());
 	}
 
+
 	@Override
 	public boolean isRunning() {
 		return this.running;
@@ -57,16 +57,6 @@ public class ReactorHttpServer extends HttpServerSupport
 		return reactorServer;
 	}
 
-	@Override
-	public boolean isStarted() {
-		return running;
-	}
-
-	@Override
-	public boolean isTerminated() {
-		return !running;
-	}
-
 	@Override
 	public void start() {
 		if (!this.running) {

spring-web/src/test/java/org/springframework/web/client/reactive/WebClientIntegrationTests.java

@@ -33,7 +33,7 @@ import org.junit.Before;
 import org.junit.Test;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.core.test.TestSubscriber;
+import reactor.test.TestSubscriber;
 
 import org.springframework.http.codec.Pojo;
 import org.springframework.http.HttpHeaders;