Start building against Spring Framework 7.0.0 snapshots

gradle.properties

@@ -1,9 +1,9 @@
-version=3.0.4-SNAPSHOT
+version=4.0.0-SNAPSHOT
 
 org.gradle.caching=true
 org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8
 org.gradle.parallel=true
 
 javaFormatVersion=0.0.43
 jmustacheVersion=1.15
-springFrameworkVersion=6.1.13
+springFrameworkVersion=7.0.0-SNAPSHOT

spring-restdocs-core/build.gradle

@@ -82,10 +82,3 @@ components.java.withVariantsFromConfiguration(configurations.testFixturesApiElem
 components.java.withVariantsFromConfiguration(configurations.testFixturesRuntimeElements) {
 	skip()
 }
-
-compatibilityTest {
-	dependency("Spring Framework") { springFramework ->
-		springFramework.groupId = "org.springframework"
-		springFramework.versions = ["6.0.+", "6.2.+"]
-	}
-}

spring-restdocs-core/src/main/java/org/springframework/restdocs/cli/CliOperationRequest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -76,7 +76,7 @@ public String getContentAsString() {
 	@Override
 	public HttpHeaders getHeaders() {
 		HttpHeaders filteredHeaders = new HttpHeaders();
-		for (Entry<String, List<String>> header : this.delegate.getHeaders().entrySet()) {
+		for (Entry<String, List<String>> header : this.delegate.getHeaders().headerSet()) {
 			if (allowedHeader(header)) {
 				filteredHeaders.put(header.getKey(), header.getValue());
 			}

spring-restdocs-core/src/main/java/org/springframework/restdocs/cli/CurlRequestSnippet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2022 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -132,7 +132,7 @@ private void writeHttpMethod(OperationRequest request, StringBuilder builder) {
 	}
 
 	private void writeHeaders(CliOperationRequest request, List<String> lines) {
-		for (Entry<String, List<String>> entry : request.getHeaders().entrySet()) {
+		for (Entry<String, List<String>> entry : request.getHeaders().headerSet()) {
 			for (String header : entry.getValue()) {
 				if (StringUtils.hasText(request.getContentAsString()) && HttpHeaders.CONTENT_TYPE.equals(entry.getKey())
 						&& MediaType.APPLICATION_FORM_URLENCODED.equals(request.getHeaders().getContentType())) {

spring-restdocs-core/src/main/java/org/springframework/restdocs/cli/HttpieRequestSnippet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -160,7 +160,7 @@ private void writeFormDataIfNecessary(OperationRequest request, List<String> lin
 
 	private void writeHeaders(OperationRequest request, List<String> lines) {
 		HttpHeaders headers = request.getHeaders();
-		for (Entry<String, List<String>> entry : headers.entrySet()) {
+		for (Entry<String, List<String>> entry : headers.headerSet()) {
 			if (entry.getKey().equals(HttpHeaders.CONTENT_TYPE)
 					&& headers.getContentType().isCompatibleWith(MediaType.APPLICATION_FORM_URLENCODED)) {
 				continue;

spring-restdocs-core/src/main/java/org/springframework/restdocs/headers/RequestHeadersSnippet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2019 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -57,7 +57,7 @@ protected RequestHeadersSnippet(List<HeaderDescriptor> descriptors, Map<String,
 
 	@Override
 	protected Set<String> extractActualHeaders(Operation operation) {
-		return operation.getRequest().getHeaders().keySet();
+		return operation.getRequest().getHeaders().headerNames();
 	}
 
 	/**

spring-restdocs-core/src/main/java/org/springframework/restdocs/headers/ResponseHeadersSnippet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2019 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -57,7 +57,7 @@ protected ResponseHeadersSnippet(List<HeaderDescriptor> descriptors, Map<String,
 
 	@Override
 	protected Set<String> extractActualHeaders(Operation operation) {
-		return operation.getResponse().getHeaders().keySet();
+		return operation.getResponse().getHeaders().headerNames();
 	}
 
 	/**

spring-restdocs-core/src/main/java/org/springframework/restdocs/http/HttpRequestSnippet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2024 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -91,7 +91,7 @@ private boolean includeParametersInUri(OperationRequest request) {
 	private List<Map<String, String>> getHeaders(OperationRequest request) {
 		List<Map<String, String>> headers = new ArrayList<>();
 
-		for (Entry<String, List<String>> header : request.getHeaders().entrySet()) {
+		for (Entry<String, List<String>> header : request.getHeaders().headerSet()) {
 			for (String value : header.getValue()) {
 				if (HttpHeaders.CONTENT_TYPE.equals(header.getKey()) && !request.getParts().isEmpty()) {
 					headers.add(header(header.getKey(), String.format("%s; boundary=%s", value, MULTIPART_BOUNDARY)));

spring-restdocs-core/src/main/java/org/springframework/restdocs/http/HttpResponseSnippet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2022 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -73,7 +73,7 @@ private String responseBody(OperationResponse response) {
 
 	private List<Map<String, String>> headers(OperationResponse response) {
 		List<Map<String, String>> headers = new ArrayList<>();
-		for (Entry<String, List<String>> header : response.getHeaders().entrySet()) {
+		for (Entry<String, List<String>> header : response.getHeaders().headerSet()) {
 			List<String> values = header.getValue();
 			for (String value : values) {
 				headers.add(header(header.getKey(), value));

spring-restdocs-core/src/main/java/org/springframework/restdocs/operation/preprocess/HeadersModifyingOperationPreprocessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -210,7 +210,7 @@ private RemoveHeadersByNamePatternModification(Pattern namePattern) {
 
 		@Override
 		public void applyTo(HttpHeaders headers) {
-			headers.keySet().removeIf((name) -> this.namePattern.matcher(name).matches());
+			headers.headerNames().removeIf((name) -> this.namePattern.matcher(name).matches());
 		}
 
 	}

spring-restdocs-core/src/main/java/org/springframework/restdocs/operation/preprocess/UriModifyingOperationPreprocessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -147,7 +147,7 @@ public OperationResponse preprocess(OperationResponse response) {
 
 	private HttpHeaders modify(HttpHeaders headers) {
 		HttpHeaders modified = new HttpHeaders();
-		for (Entry<String, List<String>> header : headers.entrySet()) {
+		for (Entry<String, List<String>> header : headers.headerSet()) {
 			for (String value : header.getValue()) {
 				modified.add(header.getKey(), this.contentModifier.modify(value));
 			}

spring-restdocs-core/src/test/java/org/springframework/restdocs/config/RestDocumentationConfigurerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -210,7 +210,7 @@ public void customDefaultOperationRequestPreprocessor() {
 		headers.add("Foo", "value");
 		OperationRequest request = new OperationRequestFactory().create(URI.create("http://localhost:8080"),
 				HttpMethod.GET, null, headers, null, Collections.emptyList());
-		assertThat(preprocessor.preprocess(request).getHeaders()).doesNotContainKey("Foo");
+		assertThat(preprocessor.preprocess(request).getHeaders().headerNames()).doesNotContain("Foo");
 	}
 
 	@Test
@@ -224,7 +224,7 @@ public void customDefaultOperationResponsePreprocessor() {
 		HttpHeaders headers = new HttpHeaders();
 		headers.add("Foo", "value");
 		OperationResponse response = new OperationResponseFactory().create(HttpStatus.OK, headers, null);
-		assertThat(preprocessor.preprocess(response).getHeaders()).doesNotContainKey("Foo");
+		assertThat(preprocessor.preprocess(response).getHeaders().headerNames()).doesNotContain("Foo");
 	}
 
 	private RestDocumentationContext createContext() {

spring-restdocs-core/src/test/java/org/springframework/restdocs/operation/preprocess/HeadersModifyingOperationPreprocessorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -33,6 +33,7 @@
 import org.springframework.restdocs.operation.OperationResponseFactory;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.entry;
 
 /**
  * Tests for {@link HeadersModifyingOperationPreprocessor}.
@@ -47,81 +48,91 @@ public class HeadersModifyingOperationPreprocessorTests {
 	@Test
 	public void addNewHeader() {
 		this.preprocessor.add("a", "alpha");
-		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders()).containsEntry("a",
-				Arrays.asList("alpha"));
-		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders()).containsEntry("a",
-				Arrays.asList("alpha"));
+		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders().get("a"))
+			.isEqualTo(Arrays.asList("alpha"));
+		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders().get("a"))
+			.isEqualTo(Arrays.asList("alpha"));
 	}
 
 	@Test
 	public void addValueToExistingHeader() {
 		this.preprocessor.add("a", "alpha");
-		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple"))).getHeaders())
-			.containsEntry("a", Arrays.asList("apple", "alpha"));
-		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple"))).getHeaders())
-			.containsEntry("a", Arrays.asList("apple", "alpha"));
+		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerSet()).contains(entry("a", Arrays.asList("apple", "alpha")));
+		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerSet()).contains(entry("a", Arrays.asList("apple", "alpha")));
 	}
 
 	@Test
 	public void setNewHeader() {
 		this.preprocessor.set("a", "alpha", "avocado");
-		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders()).containsEntry("a",
-				Arrays.asList("alpha", "avocado"));
-		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders()).containsEntry("a",
-				Arrays.asList("alpha", "avocado"));
+		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders().headerSet())
+			.contains(entry("a", Arrays.asList("alpha", "avocado")));
+		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders().headerSet())
+			.contains(entry("a", Arrays.asList("alpha", "avocado")));
 	}
 
 	@Test
 	public void setExistingHeader() {
 		this.preprocessor.set("a", "alpha", "avocado");
-		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple"))).getHeaders())
-			.containsEntry("a", Arrays.asList("alpha", "avocado"));
-		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple"))).getHeaders())
-			.containsEntry("a", Arrays.asList("alpha", "avocado"));
+		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerSet()).contains(entry("a", Arrays.asList("alpha", "avocado")));
+		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerSet()).contains(entry("a", Arrays.asList("alpha", "avocado")));
 	}
 
 	@Test
 	public void removeNonExistentHeader() {
 		this.preprocessor.remove("a");
-		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders()).doesNotContainKey("a");
-		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders()).doesNotContainKey("a");
+		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders().headerNames()).doesNotContain("a");
+		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders().headerNames()).doesNotContain("a");
 	}
 
 	@Test
 	public void removeHeader() {
 		this.preprocessor.remove("a");
-		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple"))).getHeaders())
-			.doesNotContainKey("a");
-		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple"))).getHeaders())
-			.doesNotContainKey("a");
+		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerNames()).doesNotContain("a");
+		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerNames()).doesNotContain("a");
 	}
 
 	@Test
 	public void removeHeaderValueForNonExistentHeader() {
 		this.preprocessor.remove("a", "apple");
-		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders()).doesNotContainKey("a");
-		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders()).doesNotContainKey("a");
+		assertThat(this.preprocessor.preprocess(createRequest()).getHeaders().headerNames()).doesNotContain("a");
+		assertThat(this.preprocessor.preprocess(createResponse()).getHeaders().headerNames()).doesNotContain("a");
 	}
 
 	@Test
 	public void removeHeaderValueWithMultipleValues() {
 		this.preprocessor.remove("a", "apple");
 		assertThat(
 				this.preprocessor.preprocess(createRequest((headers) -> headers.addAll("a", List.of("apple", "alpha"))))
-					.getHeaders())
-			.containsEntry("a", Arrays.asList("alpha"));
+					.getHeaders()
+					.headerSet())
+			.contains(entry("a", Arrays.asList("alpha")));
 		assertThat(this.preprocessor
 			.preprocess(createResponse((headers) -> headers.addAll("a", List.of("apple", "alpha"))))
-			.getHeaders()).containsEntry("a", Arrays.asList("alpha"));
+			.getHeaders()
+			.headerSet()).contains(entry("a", Arrays.asList("alpha")));
 	}
 
 	@Test
 	public void removeHeaderValueWithSingleValueRemovesEntryEntirely() {
 		this.preprocessor.remove("a", "apple");
-		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple"))).getHeaders())
-			.doesNotContainKey("a");
-		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple"))).getHeaders())
-			.doesNotContainKey("a");
+		assertThat(this.preprocessor.preprocess(createRequest((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerNames()).doesNotContain("a");
+		assertThat(this.preprocessor.preprocess(createResponse((headers) -> headers.add("a", "apple")))
+			.getHeaders()
+			.headerNames()).doesNotContain("a");
 	}
 
 	@Test
@@ -133,10 +144,10 @@ public void removeHeadersByNamePattern() {
 			headers.add("bravo", "bravo");
 		};
 		this.preprocessor.removeMatching("^a.*");
-		assertThat(this.preprocessor.preprocess(createRequest(headersCustomizer)).getHeaders()).containsOnlyKeys("Host",
-				"bravo");
-		assertThat(this.preprocessor.preprocess(createResponse(headersCustomizer)).getHeaders())
-			.containsOnlyKeys("bravo");
+		assertThat(this.preprocessor.preprocess(createRequest(headersCustomizer)).getHeaders().headerNames())
+			.containsOnly("Host", "bravo");
+		assertThat(this.preprocessor.preprocess(createResponse(headersCustomizer)).getHeaders().headerNames())
+			.containsOnly("bravo");
 	}
 
 	private OperationRequest createRequest() {

spring-restdocs-mockmvc/build.gradle

@@ -22,10 +22,3 @@ dependencies {
 	testImplementation("org.hamcrest:hamcrest-library")
 	testImplementation("org.mockito:mockito-core")
 }
-
-compatibilityTest {
-	dependency("Spring Framework") { springFramework ->
-		springFramework.groupId = "org.springframework"
-		springFramework.versions = ["6.0.+", "6.2.+"]
-	}
-}

spring-restdocs-mockmvc/src/main/java/org/springframework/restdocs/mockmvc/MockMvcResponseConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2022 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -68,7 +68,7 @@ private HttpHeaders extractHeaders(MockHttpServletResponse response) {
 			}
 		}
 
-		if (response.getCookies() != null && !headers.containsKey(HttpHeaders.SET_COOKIE)) {
+		if (response.getCookies() != null && !headers.containsHeader(HttpHeaders.SET_COOKIE)) {
 			for (Cookie cookie : response.getCookies()) {
 				headers.add(HttpHeaders.SET_COOKIE, generateSetCookieHeader(cookie));
 			}

spring-restdocs-mockmvc/src/test/java/org/springframework/restdocs/mockmvc/MockMvcRequestConverterTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2023 the original author or authors.
+ * Copyright 2014-2025 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.
@@ -37,6 +37,7 @@
 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.entry;
 import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.mock;
 
@@ -78,8 +79,8 @@ public void requestWithHeaders() {
 				MockMvcRequestBuilders.get("/foo").header("a", "alpha", "apple").header("b", "bravo"));
 		assertThat(request.getUri()).isEqualTo(URI.create("http://localhost/foo"));
 		assertThat(request.getMethod()).isEqualTo(HttpMethod.GET);
-		assertThat(request.getHeaders()).containsEntry("a", Arrays.asList("alpha", "apple"));
-		assertThat(request.getHeaders()).containsEntry("b", Arrays.asList("bravo"));
+		assertThat(request.getHeaders().headerSet()).contains(entry("a", Arrays.asList("alpha", "apple")),
+				entry("b", Arrays.asList("bravo")));
 	}
 
 	@Test