Remove WebFlux trailing slash match

See gh-34036

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -21,7 +21,6 @@ import java.util.Map;
 import java.util.function.Predicate;
 
 import org.springframework.lang.Nullable;
-import org.springframework.web.util.pattern.PathPatternParser;
 
 /**
  * Assist with configuring {@code HandlerMapping}'s with path matching options.
@@ -32,10 +31,6 @@ import org.springframework.web.util.pattern.PathPatternParser;
  */
 public class PathMatchConfigurer {
 
-	@Nullable
-	private Boolean trailingSlashMatch;
-
-
 	@Nullable
 	private Boolean caseSensitiveMatch;
 
@@ -53,20 +48,6 @@ public class PathMatchConfigurer {
 		return this;
 	}
 
-	/**
-	 * Whether to match to URLs irrespective of the presence of a trailing slash.
-	 * If enabled a method mapped to "/users" also matches to "/users/".
-	 * <p>The default was changed in 6.0 from {@code true} to {@code false} in
-	 * order to support the deprecation of the property.
-	 * @deprecated as of 6.0, see
-	 * {@link PathPatternParser#setMatchOptionalTrailingSeparator(boolean)}
-	 */
-	@Deprecated(since = "6.0")
-	public PathMatchConfigurer setUseTrailingSlashMatch(Boolean trailingSlashMatch) {
-		this.trailingSlashMatch = trailingSlashMatch;
-		return this;
-	}
-
 	/**
 	 * Configure a path prefix to apply to matching controller methods.
 	 * <p>Prefixes are used to enrich the mappings of every {@code @RequestMapping}
@@ -87,12 +68,6 @@ public class PathMatchConfigurer {
 	}
 
 
-	@Nullable
-	@Deprecated
-	protected Boolean isUseTrailingSlashMatch() {
-		return this.trailingSlashMatch;
-	}
-
 	@Nullable
 	protected Boolean isUseCaseSensitiveMatch() {
 		return this.caseSensitiveMatch;

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

@@ -154,13 +154,8 @@ public class WebFluxConfigurationSupport implements ApplicationContextAware {
 		return mapping;
 	}
 
-	@SuppressWarnings("deprecation")
 	private void configureAbstractHandlerMapping(AbstractHandlerMapping mapping, PathMatchConfigurer configurer) {
 		mapping.setCorsConfigurations(getCorsConfigurations());
-		Boolean useTrailingSlashMatch = configurer.isUseTrailingSlashMatch();
-		if (useTrailingSlashMatch != null) {
-			mapping.setUseTrailingSlashMatch(useTrailingSlashMatch);
-		}
 		Boolean useCaseSensitiveMatch = configurer.isUseCaseSensitiveMatch();
 		if (useCaseSensitiveMatch != null) {
 			mapping.setUseCaseSensitiveMatch(useCaseSensitiveMatch);

spring-webflux/src/main/java/org/springframework/web/reactive/handler/AbstractHandlerMapping.java

@@ -85,24 +85,6 @@ public abstract class AbstractHandlerMapping extends ApplicationObjectSupport
 		this.patternParser.setCaseSensitive(caseSensitiveMatch);
 	}
 
-	/**
-	 * Shortcut method for setting the same property on the underlying pattern
-	 * parser in use. For more details see:
-	 * <ul>
-	 * <li>{@link #getPathPatternParser()} -- the underlying pattern parser
-	 * <li>{@link PathPatternParser#setMatchOptionalTrailingSeparator(boolean)} --
-	 * the trailing slash option, including its default value.
-	 * </ul>
-	 * <p>The default was changed in 6.0 from {@code true} to {@code false} in
-	 * order to support the deprecation of the property.
-	 * @deprecated as of 6.0, see
-	 * {@link PathPatternParser#setMatchOptionalTrailingSeparator(boolean)}
-	 */
-	@Deprecated(since = "6.0")
-	public void setUseTrailingSlashMatch(boolean trailingSlashMatch) {
-		this.patternParser.setMatchOptionalTrailingSeparator(trailingSlashMatch);
-	}
-
 	/**
 	 * Return the {@link PathPatternParser} instance that is used for
 	 * {@link #setCorsConfigurations(Map) CORS configuration checks}.

spring-webflux/src/test/java/org/springframework/web/reactive/config/WebFluxConfigurationSupportTests.java

@@ -16,7 +16,6 @@
 
 package org.springframework.web.reactive.config;
 
-import java.lang.reflect.Field;
 import java.nio.ByteBuffer;
 import java.security.Principal;
 import java.util.Collections;
@@ -48,7 +47,6 @@ import org.springframework.lang.Nullable;
 import org.springframework.util.MimeType;
 import org.springframework.util.MimeTypeUtils;
 import org.springframework.util.MultiValueMap;
-import org.springframework.util.ReflectionUtils;
 import org.springframework.validation.Validator;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -71,9 +69,7 @@ import org.springframework.web.reactive.result.view.ViewResolutionResultHandler;
 import org.springframework.web.reactive.result.view.ViewResolver;
 import org.springframework.web.reactive.result.view.freemarker.FreeMarkerConfigurer;
 import org.springframework.web.reactive.result.view.freemarker.FreeMarkerViewResolver;
-import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.server.WebHandler;
-import org.springframework.web.testfixture.server.MockServerWebExchange;
 import org.springframework.web.util.pattern.PathPatternParser;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -87,7 +83,6 @@ import static org.springframework.http.MediaType.APPLICATION_PROTOBUF;
 import static org.springframework.http.MediaType.APPLICATION_XML;
 import static org.springframework.http.MediaType.IMAGE_PNG;
 import static org.springframework.http.MediaType.TEXT_PLAIN;
-import static org.springframework.web.testfixture.http.server.reactive.MockServerHttpRequest.get;
 
 /**
  * Tests for {@link WebFluxConfigurationSupport}.
@@ -96,31 +91,6 @@ import static org.springframework.web.testfixture.http.server.reactive.MockServe
  */
 class WebFluxConfigurationSupportTests {
 
-	@Test
-	void requestMappingHandlerMapping() {
-		ApplicationContext context = loadConfig(WebFluxConfig.class);
-		Field field = ReflectionUtils.findField(PathPatternParser.class, "matchOptionalTrailingSeparator");
-		assertThat(field).isNotNull();
-		ReflectionUtils.makeAccessible(field);
-
-		String name = "requestMappingHandlerMapping";
-		RequestMappingHandlerMapping mapping = context.getBean(name, RequestMappingHandlerMapping.class);
-		assertThat(mapping).isNotNull();
-
-		assertThat(mapping.getOrder()).isEqualTo(0);
-
-		PathPatternParser patternParser = mapping.getPathPatternParser();
-		assertThat(patternParser).hasFieldOrPropertyWithValue("matchOptionalTrailingSeparator", false);
-
-		name = "webFluxContentTypeResolver";
-		RequestedContentTypeResolver resolver = context.getBean(name, RequestedContentTypeResolver.class);
-		assertThat(mapping.getContentTypeResolver()).isSameAs(resolver);
-
-		ServerWebExchange exchange = MockServerWebExchange.from(get("/path").accept(MediaType.APPLICATION_JSON));
-		assertThat(resolver.resolveMediaTypes(exchange))
-				.isEqualTo(Collections.singletonList(MediaType.APPLICATION_JSON));
-	}
-
 	@Test
 	void customPathMatchConfig() {
 		ApplicationContext context = loadConfig(CustomPatchMatchConfig.class);

spring-webflux/src/test/java/org/springframework/web/reactive/result/condition/PatternsRequestConditionTests.java

@@ -104,38 +104,6 @@ class PatternsRequestConditionTests {
 		assertThat(match).isEqualTo(expected);
 	}
 
-	@Test
-	@SuppressWarnings("deprecation")
-	public void matchTrailingSlash() {
-		MockServerWebExchange exchange = MockServerWebExchange.from(get("/foo/"));
-
-		PathPatternParser patternParser = new PathPatternParser();
-		patternParser.setMatchOptionalTrailingSeparator(true);
-
-		PatternsRequestCondition condition = new PatternsRequestCondition(patternParser.parse("/foo"));
-		PatternsRequestCondition match = condition.getMatchingCondition(exchange);
-
-		assertThat(match).isNotNull();
-		assertThat(match.getPatterns().iterator().next().getPatternString())
-				.as("Should match by default")
-				.isEqualTo("/foo");
-
-		condition = new PatternsRequestCondition(patternParser.parse("/foo"));
-		match = condition.getMatchingCondition(exchange);
-
-		assertThat(match).isNotNull();
-		assertThat(match.getPatterns().iterator().next().getPatternString())
-				.as("Trailing slash should be insensitive to useSuffixPatternMatch settings (SPR-6164, SPR-5636)")
-				.isEqualTo("/foo");
-
-		PathPatternParser parser = new PathPatternParser();
-		parser.setMatchOptionalTrailingSeparator(false);
-		condition = new PatternsRequestCondition(parser.parse("/foo"));
-		match = condition.getMatchingCondition(MockServerWebExchange.from(get("/foo/")));
-
-		assertThat(match).isNull();
-	}
-
 	@Test
 	void matchPatternContainsExtension() {
 		PatternsRequestCondition condition = createPatternsCondition("/foo.jpg");