Polishing

spring-core/src/main/java/org/springframework/core/ReactiveAdapterRegistry.java

@@ -41,7 +41,7 @@ import org.springframework.util.ReflectionUtils;
  *
  * <p>By default, depending on classpath availability, adapters are registered
  * for Reactor, RxJava 1, RxJava 2 types, {@link CompletableFuture}, and Java 9+
- * Flow.Publisher.
+ * {@code Flow.Publisher}.
  *
  * @author Rossen Stoyanchev
  * @author Sebastien Deleuze
@@ -54,7 +54,7 @@ public class ReactiveAdapterRegistry {
 
 	private final boolean reactorPresent;
 
-	private final List<ReactiveAdapter> adapters = new ArrayList<>(32);
+	private final List<ReactiveAdapter> adapters = new ArrayList<>();
 
 
 	/**
@@ -112,13 +112,13 @@ public class ReactiveAdapterRegistry {
 
 	/**
 	 * Register a reactive type along with functions to adapt to and from a
-	 * Reactive Streams {@link Publisher}. The functions can assume their
-	 * input is never be {@code null} nor {@link Optional}.
+	 * Reactive Streams {@link Publisher}. The function arguments assume that
+	 * their input is neither {@code null} nor {@link Optional}.
 	 */
 	public void registerReactiveType(ReactiveTypeDescriptor descriptor,
 			Function<Object, Publisher<?>> toAdapter, Function<Publisher<?>, Object> fromAdapter) {
 
-		if (reactorPresent) {
+		if (this.reactorPresent) {
 			this.adapters.add(new ReactorAdapter(descriptor, toAdapter, fromAdapter));
 		}
 		else {
@@ -128,6 +128,7 @@ public class ReactiveAdapterRegistry {
 
 	/**
 	 * Get the adapter for the given reactive type.
+	 * @return the corresponding adapter, or {@code null} if none available
 	 */
 	@Nullable
 	public ReactiveAdapter getAdapter(Class<?> reactiveType) {
@@ -141,6 +142,7 @@ public class ReactiveAdapterRegistry {
 	 * (may be {@code null} if a concrete source object is given)
 	 * @param source an instance of the reactive type
 	 * (i.e. to adapt from; may be {@code null} if the reactive type is specified)
+	 * @return the corresponding adapter, or {@code null} if none available
 	 */
 	@Nullable
 	public ReactiveAdapter getAdapter(@Nullable Class<?> reactiveType, @Nullable Object source) {
@@ -162,13 +164,13 @@ public class ReactiveAdapterRegistry {
 
 
 	/**
-	 * Return a shared default {@code ReactiveAdapterRegistry} instance, lazily
-	 * building it once needed.
+	 * Return a shared default {@code ReactiveAdapterRegistry} instance,
+	 * lazily building it once needed.
 	 * <p><b>NOTE:</b> We highly recommend passing a long-lived, pre-configured
 	 * {@code ReactiveAdapterRegistry} instance for customization purposes.
 	 * This accessor is only meant as a fallback for code paths that want to
 	 * fall back on a default instance if one isn't provided.
-	 * @return the shared {@code ReactiveAdapterRegistry} instance (never {@code null})
+	 * @return the shared {@code ReactiveAdapterRegistry} instance
 	 * @since 5.0.2
 	 */
 	public static ReactiveAdapterRegistry getSharedInstance() {

spring-core/src/main/java/org/springframework/util/Base64Utils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -89,7 +89,7 @@ public abstract class Base64Utils {
 
 	/**
 	 * Base64-encode the given byte array to a String.
-	 * @param src the original byte array (may be {@code null})
+	 * @param src the original byte array
 	 * @return the encoded byte array as a UTF-8 String
 	 */
 	public static String encodeToString(byte[] src) {