Update spring.io metadata strategy to use the new API

Prior to this commit, the Spring Boot metadata reader would use a legacy
API endpoint on spring.io to fetch the Spring Boot versions.
The current website is about to be retired for a different
infrastructure and we should take this opportunity to update the
endpoint we're using.

This commit updates the metadata reader strategy to now use the
`https://spring.io/api/projects/spring-boot/releases` endpoint to fetch
the relevant information. The JSON format itself changed slightly and
this commit adapts to the new format as well.

Closes gh-1369

initializr-docs/src/main/asciidoc/configuration-guide.adoc

@@ -389,7 +389,7 @@ to redeploy the application every time. Implementing your own
 `InitializrMetadataUpdateStrategy` bean allows you to update the metadata at runtime.
 
 If you look at https://spring.io/projects/spring-boot[the project home page for Spring
-Boot], the latest versions are displayed. `SaganInitializrMetadataUpdateStrategy` is an
+Boot], the latest versions are displayed. `SpringIoInitializrMetadataUpdateStrategy` is an
 implementation of that strategy that fetches the latest Spring Boot versions and update
 the metadata to make sure a running instance using those conventions always get the latest
 available versions.
@@ -399,7 +399,7 @@ scenes, you can define a `RestTemplateCustomizer` bean in your configuration. Fo
 details, {spring-boot-reference}/#boot-features-restclient-customization[check the
 documentation].
 
-NOTE: If you opt-in for `SaganInitializrMetadataUpdateStrategy`, you have to
+NOTE: If you opt-in for `SpringIoInitializrMetadataUpdateStrategy`, you have to
 <<create-instance-advanced-config-caching,configure caching>> to avoid requesting that
 service too often.
 
@@ -1153,7 +1153,7 @@ automatically:
 [[create-instance-advanced-config-caching]]
 === Caching configuration
 If you use the service, you'll notice that the logs have lots of entries with the message
-`Fetching boot metadata from https://spring.io/project_metadata/spring-boot`. To avoid
+`Fetching boot metadata from https://spring.io/api/projects/spring-boot/releases`. To avoid
 checking for the latest Spring Boot versions too often, you should enable caching on your
 service. Spring Initializr has some auto-configuration to apply the proper caches if you
 are willing to use a JCache (JSR-107) implementation.

initializr-metadata/src/main/java/io/spring/initializr/metadata/InitializrConfiguration.java

@@ -179,7 +179,7 @@ public class InitializrConfiguration {
 		/**
 		 * The metadata url of the Spring Boot project.
 		 */
-		private String springBootMetadataUrl = "https://spring.io/project_metadata/spring-boot";
+		private String springBootMetadataUrl = "https://spring.io/api/projects/spring-boot/releases";
 
 		/**
 		 * Tracking code for Google Analytics. Only enabled if a value is explicitly

initializr-service-sample/README.adoc

@@ -46,12 +46,12 @@ Finally, you can configure your IDE to point to another service instance.
 There are two main customizations to the sample.
 
 === Metadata Update Strategy
-First, `ServiceApplication` has a dedicated strategy to update the metadata with the available Spring Boot versions from Sagan (`spring.io`).
+First, `ServiceApplication` has a dedicated strategy to update the metadata with the available Spring Boot versions from `https://spring.io`.
 When you issue your first request, you should see something like the following:
 
 [indent=0]
 ----
-Fetching Spring Boot metadata from https://spring.io/project_metadata/spring-boot
+Fetching Spring Boot metadata from https://spring.io/api/projects/spring-boot/releases
 ----
 
 On further request, you won't see this log entry as the content is cached.

initializr-service-sample/src/main/java/sample/service/ServiceApplication.java

@@ -17,7 +17,7 @@
 package sample.service;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import io.spring.initializr.web.support.SaganInitializrMetadataUpdateStrategy;
+import io.spring.initializr.web.support.SpringIoInitializrMetadataUpdateStrategy;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
@@ -40,11 +40,11 @@ public class ServiceApplication {
 		SpringApplication.run(ServiceApplication.class, args);
 	}
 
-	// This bean opt-in for fetching available Spring Boot versions from Sagan (spring.io)
+	// This bean opt-in for fetching available Spring Boot versions from https://spring.io
 	@Bean
-	SaganInitializrMetadataUpdateStrategy saganInitializrMetadataUpdateStrategy(RestTemplateBuilder restTemplateBuilder,
+	SpringIoInitializrMetadataUpdateStrategy springIoInitializrMetadataUpdateStrategy(
-			ObjectMapper objectMapper) {
+			RestTemplateBuilder restTemplateBuilder, ObjectMapper objectMapper) {
-		return new SaganInitializrMetadataUpdateStrategy(restTemplateBuilder.build(), objectMapper);
+		return new SpringIoInitializrMetadataUpdateStrategy(restTemplateBuilder.build(), objectMapper);
 	}
 
 }

initializr-web/src/main/java/io/spring/initializr/web/support/SpringBootMetadataReader.java

@@ -59,7 +59,7 @@ class SpringBootMetadataReader {
 	 * @return the versions
 	 */
 	List<DefaultMetadataElement> getBootVersions() {
-		ArrayNode releases = (ArrayNode) this.content.get("projectReleases");
+		ArrayNode releases = (ArrayNode) this.content.get("_embedded").get("releases");
 		List<DefaultMetadataElement> list = new ArrayList<>();
 		for (JsonNode node : releases) {
 			DefaultMetadataElement versionMetadata = parseVersionMetadata(node);

initializr-web/src/main/java/io/spring/initializr/web/support/SpringIoInitializrMetadataUpdateStrategy.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2023 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.
@@ -35,15 +35,15 @@ import org.springframework.web.client.RestTemplate;
  * @author Stephane Nicoll
  * @see Env#getSpringBootMetadataUrl()
  */
-public class SaganInitializrMetadataUpdateStrategy implements InitializrMetadataUpdateStrategy {
+public class SpringIoInitializrMetadataUpdateStrategy implements InitializrMetadataUpdateStrategy {
 
-	private static final Log logger = LogFactory.getLog(SaganInitializrMetadataUpdateStrategy.class);
+	private static final Log logger = LogFactory.getLog(SpringIoInitializrMetadataUpdateStrategy.class);
 
 	private final RestTemplate restTemplate;
 
 	private final ObjectMapper objectMapper;
 
-	public SaganInitializrMetadataUpdateStrategy(RestTemplate restTemplate, ObjectMapper objectMapper) {
+	public SpringIoInitializrMetadataUpdateStrategy(RestTemplate restTemplate, ObjectMapper objectMapper) {
 		this.restTemplate = restTemplate;
 		this.objectMapper = objectMapper;
 	}

initializr-web/src/test/java/io/spring/initializr/web/support/SpringBootMetadataReaderTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2023 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.
@@ -52,28 +52,30 @@ class SpringBootMetadataReaderTests {
 
 	@Test
 	void readAvailableVersions() throws IOException {
-		this.server.expect(requestTo("https://spring.io/project_metadata/spring-boot")).andRespond(
+		this.server.expect(requestTo("https://spring.io/api/projects/spring-boot/releases")).andRespond(
-				withSuccess(new ClassPathResource("metadata/sagan/spring-boot.json"), MediaType.APPLICATION_JSON));
+				withSuccess(new ClassPathResource("metadata/springio/spring-boot.json"), MediaType.APPLICATION_JSON));
 		List<DefaultMetadataElement> versions = new SpringBootMetadataReader(this.objectMapper, this.restTemplate,
 				this.metadata.getConfiguration().getEnv().getSpringBootMetadataUrl()).getBootVersions();
-		assertThat(versions).hasSize(5);
+		assertThat(versions).hasSize(7);
-		assertSpringBootVersion(versions.get(0), "2.5.0-M1", "2.5.0 (M1)", false);
+		assertSpringBootVersion(versions.get(0), "3.0.2-SNAPSHOT", "3.0.2 (SNAPSHOT)", false);
-		assertSpringBootVersion(versions.get(1), "2.4.1-SNAPSHOT", "2.4.1 (SNAPSHOT)", false);
+		assertSpringBootVersion(versions.get(1), "3.0.1", "3.0.1", true);
-		assertSpringBootVersion(versions.get(2), "2.4.0", "2.4.0", true);
+		assertSpringBootVersion(versions.get(2), "2.7.8-SNAPSHOT", "2.7.8 (SNAPSHOT)", false);
-		assertSpringBootVersion(versions.get(3), "2.3.8.BUILD-SNAPSHOT", "2.3.8 (SNAPSHOT)", false);
+		assertSpringBootVersion(versions.get(3), "2.7.7", "2.7.7", false);
-		assertSpringBootVersion(versions.get(4), "2.3.7.RELEASE", "2.3.7", false);
+		assertSpringBootVersion(versions.get(4), "2.6.14", "2.6.14", false);
+		assertSpringBootVersion(versions.get(5), "2.5.14", "2.5.14", false);
+		assertSpringBootVersion(versions.get(6), "2.4.13", "2.4.13", false);
 		this.server.verify();
 	}
 
 	@Test
 	void readAvailableVersionsWithInvalidVersion() throws IOException {
-		this.server.expect(requestTo("https://spring.io/project_metadata/spring-boot")).andRespond(withSuccess(
+		this.server.expect(requestTo("https://spring.io/api/projects/spring-boot/releases"))
-				new ClassPathResource("metadata/sagan/spring-boot-invalid-version.json"), MediaType.APPLICATION_JSON));
+				.andRespond(withSuccess(new ClassPathResource("metadata/springio/spring-boot-invalid-version.json"),
+						MediaType.APPLICATION_JSON));
 		List<DefaultMetadataElement> versions = new SpringBootMetadataReader(this.objectMapper, this.restTemplate,
 				this.metadata.getConfiguration().getEnv().getSpringBootMetadataUrl()).getBootVersions();
-		assertThat(versions).hasSize(2);
+		assertThat(versions).hasSize(1);
-		assertSpringBootVersion(versions.get(0), "2.5.0-M1", "2.5.0 (M1)", false);
+		assertSpringBootVersion(versions.get(0), "3.0.1", "3.0.1", true);
-		assertSpringBootVersion(versions.get(1), "2.4.0", "2.4.0", true);
 		this.server.verify();
 	}
 

initializr-web/src/test/java/io/spring/initializr/web/support/SpringIoInitializrMetadataUpdateStrategyTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2023 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.
@@ -39,11 +39,11 @@ import static org.springframework.test.web.client.match.MockRestRequestMatchers.
 import static org.springframework.test.web.client.response.MockRestResponseCreators.withStatus;
 
 /**
- * Tests for {@link SaganInitializrMetadataUpdateStrategy}.
+ * Tests for {@link SpringIoInitializrMetadataUpdateStrategy}.
  *
  * @author Stephane Nicoll
  */
-class SaganInitializrMetadataUpdateStrategyTests {
+class SpringIoInitializrMetadataUpdateStrategyTests {
 
 	private static final ObjectMapper objectMapper = new ObjectMapper();
 
@@ -62,19 +62,22 @@ class SaganInitializrMetadataUpdateStrategyTests {
 		InitializrMetadata metadata = new InitializrMetadataTestBuilder().addBootVersion("0.0.9.RELEASE", true)
 				.addBootVersion("0.0.8.RELEASE", false).build();
 		assertThat(metadata.getBootVersions().getDefault().getId()).isEqualTo("0.0.9.RELEASE");
-		SaganInitializrMetadataUpdateStrategy provider = new SaganInitializrMetadataUpdateStrategy(this.restTemplate,
+		SpringIoInitializrMetadataUpdateStrategy provider = new SpringIoInitializrMetadataUpdateStrategy(
-				objectMapper);
+				this.restTemplate, objectMapper);
-		expectJson(metadata.getConfiguration().getEnv().getSpringBootMetadataUrl(), "metadata/sagan/spring-boot.json");
+		expectJson(metadata.getConfiguration().getEnv().getSpringBootMetadataUrl(),
+				"metadata/springio/spring-boot.json");
 
 		InitializrMetadata updatedMetadata = provider.update(metadata);
 		assertThat(updatedMetadata.getBootVersions()).isNotNull();
 		List<DefaultMetadataElement> updatedBootVersions = updatedMetadata.getBootVersions().getContent();
-		assertThat(updatedBootVersions).hasSize(5);
+		assertThat(updatedBootVersions).hasSize(7);
-		assertBootVersion(updatedBootVersions.get(0), "2.5.0 (M1)", false);
+		assertBootVersion(updatedBootVersions.get(0), "3.0.2 (SNAPSHOT)", false);
-		assertBootVersion(updatedBootVersions.get(1), "2.4.1 (SNAPSHOT)", false);
+		assertBootVersion(updatedBootVersions.get(1), "3.0.1", true);
-		assertBootVersion(updatedBootVersions.get(2), "2.4.0", true);
+		assertBootVersion(updatedBootVersions.get(2), "2.7.8 (SNAPSHOT)", false);
-		assertBootVersion(updatedBootVersions.get(3), "2.3.8 (SNAPSHOT)", false);
+		assertBootVersion(updatedBootVersions.get(3), "2.7.7", false);
-		assertBootVersion(updatedBootVersions.get(4), "2.3.7", false);
+		assertBootVersion(updatedBootVersions.get(4), "2.6.14", false);
+		assertBootVersion(updatedBootVersions.get(5), "2.5.14", false);
+		assertBootVersion(updatedBootVersions.get(6), "2.4.13", false);
 	}
 
 	@Test
@@ -82,20 +85,22 @@ class SaganInitializrMetadataUpdateStrategyTests {
 		InitializrMetadata metadata = new InitializrMetadataTestBuilder().addBootVersion("0.0.9.RELEASE", true)
 				.addBootVersion("0.0.8.RELEASE", false).build();
 		assertThat(metadata.getBootVersions().getDefault().getId()).isEqualTo("0.0.9.RELEASE");
-		SaganInitializrMetadataUpdateStrategy provider = new SaganInitializrMetadataUpdateStrategy(this.restTemplate,
+		SpringIoInitializrMetadataUpdateStrategy provider = new SpringIoInitializrMetadataUpdateStrategy(
-				objectMapper);
+				this.restTemplate, objectMapper);
 		expectJson(metadata.getConfiguration().getEnv().getSpringBootMetadataUrl(),
-				"metadata/sagan/spring-boot-no-default.json");
+				"metadata/springio/spring-boot-no-default.json");
 
 		InitializrMetadata updatedMetadata = provider.update(metadata);
 		assertThat(updatedMetadata.getBootVersions()).isNotNull();
 		List<DefaultMetadataElement> updatedBootVersions = updatedMetadata.getBootVersions().getContent();
-		assertThat(updatedBootVersions).hasSize(5);
+		assertThat(updatedBootVersions).hasSize(7);
-		assertBootVersion(updatedBootVersions.get(0), "2.5.0 (M1)", true);
+		assertBootVersion(updatedBootVersions.get(0), "3.0.2 (SNAPSHOT)", true);
-		assertBootVersion(updatedBootVersions.get(1), "2.4.1 (SNAPSHOT)", false);
+		assertBootVersion(updatedBootVersions.get(1), "3.0.1", false);
-		assertBootVersion(updatedBootVersions.get(2), "2.4.0", false);
+		assertBootVersion(updatedBootVersions.get(2), "2.7.8 (SNAPSHOT)", false);
-		assertBootVersion(updatedBootVersions.get(3), "2.3.8 (SNAPSHOT)", false);
+		assertBootVersion(updatedBootVersions.get(3), "2.7.7", false);
-		assertBootVersion(updatedBootVersions.get(4), "2.3.7", false);
+		assertBootVersion(updatedBootVersions.get(4), "2.6.14", false);
+		assertBootVersion(updatedBootVersions.get(5), "2.5.14", false);
+		assertBootVersion(updatedBootVersions.get(6), "2.4.13", false);
 	}
 
 	private static void assertBootVersion(DefaultMetadataElement actual, String name, boolean defaultVersion) {

initializr-web/src/test/resources/metadata/config/test-default.json

@@ -137,7 +137,7 @@
         "version": "1.0.0.RELEASE"
       }
     },
-    "springBootMetadataUrl": "https://spring.io/project_metadata/spring-boot"
+    "springBootMetadataUrl": "https://spring.io/api/projects/spring-boot/releases"
   }},
   "dependencies": {
     "content": [

initializr-web/src/test/resources/metadata/sagan/spring-boot-invalid-version.json

@@ -1,66 +0,0 @@
-{
-  "id": "spring-boot",
-  "name": "Spring Boot",
-  "repoUrl": "https://github.com/spring-projects/spring-boot",
-  "siteUrl": "https://projects.spring.io/spring-boot",
-  "category": "active",
-  "stackOverflowTags": "spring-boot",
-  "projectReleases": [
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.0-M1/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.0-M1/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-milestones",
-        "name": "Spring Milestones",
-        "url": "https://repo.spring.io/libs-milestone",
-        "snapshotsEnabled": false
-      },
-      "preRelease": true,
-      "generalAvailability": false,
-      "versionDisplayName": "2.5.0-M1",
-      "current": false,
-      "snapshot": false,
-      "version": "2.5.0-M1"
-    },
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.1-SNAPSHOT/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.1-SNAPSHOT/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-snapshots",
-        "name": "Spring Snapshots",
-        "url": "https://repo.spring.io/libs-snapshot",
-        "snapshotsEnabled": true
-      },
-      "preRelease": false,
-      "generalAvailability": false,
-      "versionDisplayName": "2.4.1",
-      "current": false,
-      "snapshot": true,
-      "version": "Not a valid version"
-    },
-    {
-      "releaseStatus": "GENERAL_AVAILABILITY",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.0/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.0/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": null,
-      "preRelease": false,
-      "generalAvailability": true,
-      "versionDisplayName": "2.4.0",
-      "current": true,
-      "snapshot": false,
-      "version": "2.4.0"
-    }
-  ],
-  "aggregator": false,
-  "stackOverflowTagList": [
-    "spring-boot"
-  ]
-}

initializr-web/src/test/resources/metadata/sagan/spring-boot-no-default.json

@@ -1,99 +0,0 @@
-{
-  "id": "spring-boot",
-  "name": "Spring Boot",
-  "repoUrl": "https://github.com/spring-projects/spring-boot",
-  "siteUrl": "https://projects.spring.io/spring-boot",
-  "category": "active",
-  "stackOverflowTags": "spring-boot",
-  "projectReleases": [
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.0-M1/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.0-M1/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-milestones",
-        "name": "Spring Milestones",
-        "url": "https://repo.spring.io/libs-milestone",
-        "snapshotsEnabled": false
-      },
-      "preRelease": true,
-      "generalAvailability": false,
-      "versionDisplayName": "2.5.0-M1",
-      "current": false,
-      "snapshot": false,
-      "version": "2.5.0-M1"
-    },
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.1-SNAPSHOT/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.1-SNAPSHOT/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-snapshots",
-        "name": "Spring Snapshots",
-        "url": "https://repo.spring.io/libs-snapshot",
-        "snapshotsEnabled": true
-      },
-      "preRelease": false,
-      "generalAvailability": false,
-      "versionDisplayName": "2.4.1",
-      "current": false,
-      "snapshot": true,
-      "version": "2.4.1-SNAPSHOT"
-    },
-    {
-      "releaseStatus": "GENERAL_AVAILABILITY",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.0/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.0/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": null,
-      "preRelease": false,
-      "generalAvailability": true,
-      "versionDisplayName": "2.4.0",
-      "current": false,
-      "snapshot": false,
-      "version": "2.4.0"
-    },
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.3.8.BUILD-SNAPSHOT/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.3.8.BUILD-SNAPSHOT/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-snapshots",
-        "name": "Spring Snapshots",
-        "url": "https://repo.spring.io/libs-snapshot",
-        "snapshotsEnabled": true
-      },
-      "preRelease": false,
-      "generalAvailability": false,
-      "versionDisplayName": "2.3.8",
-      "current": false,
-      "snapshot": true,
-      "version": "2.3.8.BUILD-SNAPSHOT"
-    },
-    {
-      "releaseStatus": "GENERAL_AVAILABILITY",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/current/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": null,
-      "preRelease": false,
-      "generalAvailability": true,
-      "versionDisplayName": "2.3.7",
-      "current": false,
-      "snapshot": false,
-      "version": "2.3.7.RELEASE"
-    }
-  ],
-  "aggregator": false,
-  "stackOverflowTagList": [
-    "spring-boot"
-  ]
-}

initializr-web/src/test/resources/metadata/sagan/spring-boot.json

@@ -1,99 +0,0 @@
-{
-  "id": "spring-boot",
-  "name": "Spring Boot",
-  "repoUrl": "https://github.com/spring-projects/spring-boot",
-  "siteUrl": "https://projects.spring.io/spring-boot",
-  "category": "active",
-  "stackOverflowTags": "spring-boot",
-  "projectReleases": [
-    {
-      "releaseStatus": "GENERAL_AVAILABILITY",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.0/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.0/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": null,
-      "preRelease": false,
-      "generalAvailability": true,
-      "versionDisplayName": "2.4.0",
-      "current": true,
-      "snapshot": false,
-      "version": "2.4.0"
-    },
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.0-M1/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.0-M1/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-milestones",
-        "name": "Spring Milestones",
-        "url": "https://repo.spring.io/libs-milestone",
-        "snapshotsEnabled": false
-      },
-      "preRelease": true,
-      "generalAvailability": false,
-      "versionDisplayName": "2.5.0-M1",
-      "current": false,
-      "snapshot": false,
-      "version": "2.5.0-M1"
-    },
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.1-SNAPSHOT/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.1-SNAPSHOT/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-snapshots",
-        "name": "Spring Snapshots",
-        "url": "https://repo.spring.io/libs-snapshot",
-        "snapshotsEnabled": true
-      },
-      "preRelease": false,
-      "generalAvailability": false,
-      "versionDisplayName": "2.4.1",
-      "current": false,
-      "snapshot": true,
-      "version": "2.4.1-SNAPSHOT"
-    },
-    {
-      "releaseStatus": "SNAPSHOT",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/2.3.8.BUILD-SNAPSHOT/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.3.8.BUILD-SNAPSHOT/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": {
-        "id": "spring-snapshots",
-        "name": "Spring Snapshots",
-        "url": "https://repo.spring.io/libs-snapshot",
-        "snapshotsEnabled": true
-      },
-      "preRelease": false,
-      "generalAvailability": false,
-      "versionDisplayName": "2.3.8",
-      "current": false,
-      "snapshot": true,
-      "version": "2.3.8.BUILD-SNAPSHOT"
-    },
-    {
-      "releaseStatus": "GENERAL_AVAILABILITY",
-      "refDocUrl": "https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/",
-      "apiDocUrl": "https://docs.spring.io/spring-boot/docs/current/api/",
-      "groupId": "org.springframework.boot",
-      "artifactId": "spring-boot",
-      "repository": null,
-      "preRelease": false,
-      "generalAvailability": true,
-      "versionDisplayName": "2.3.7",
-      "current": false,
-      "snapshot": false,
-      "version": "2.3.7.RELEASE"
-    }
-  ],
-  "aggregator": false,
-  "stackOverflowTagList": [
-    "spring-boot"
-  ]
-}

initializr-web/src/test/resources/metadata/springio/spring-boot-invalid-version.json

@@ -0,0 +1,44 @@
+{
+  "_embedded": {
+    "releases": [
+      {
+        "version": "invalid version",
+        "status": "SNAPSHOT",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/3.0.2-SNAPSHOT/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/3.0.2-SNAPSHOT/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/3.0.2-SNAPSHOT"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-snapshots"
+          }
+        }
+      },
+      {
+        "version": "3.0.1",
+        "status": "GENERAL_AVAILABILITY",
+        "current": true,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/current/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/current/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/3.0.1"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      }
+    ]
+  },
+  "_links": {
+    "current": {
+      "href": "https://spring.io/api/projects/spring-boot/releases/current"
+    },
+    "project": {
+      "href": "https://spring.io/api/projects/spring-boot"
+    }
+  }
+}

initializr-web/src/test/resources/metadata/springio/spring-boot-no-default.json

@@ -0,0 +1,119 @@
+{
+  "_embedded": {
+    "releases": [
+      {
+        "version": "3.0.2-SNAPSHOT",
+        "status": "SNAPSHOT",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/3.0.2-SNAPSHOT/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/3.0.2-SNAPSHOT/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/3.0.2-SNAPSHOT"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-snapshots"
+          }
+        }
+      },
+      {
+        "version": "3.0.1",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/current/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/current/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/3.0.1"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.7.8-SNAPSHOT",
+        "status": "SNAPSHOT",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.8-SNAPSHOT/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.8-SNAPSHOT/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.7.8-SNAPSHOT"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-snapshots"
+          }
+        }
+      },
+      {
+        "version": "2.7.7",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.7/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.7/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.7.7"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.6.14",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.6.14/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.6.14/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.6.14"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.5.14",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.14/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.14/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.5.14"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.4.13",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.13/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.13/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.4.13"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      }
+    ]
+  },
+  "_links": {
+    "current": {
+      "href": "https://spring.io/api/projects/spring-boot/releases/current"
+    },
+    "project": {
+      "href": "https://spring.io/api/projects/spring-boot"
+    }
+  }
+}

initializr-web/src/test/resources/metadata/springio/spring-boot.json

@@ -0,0 +1,119 @@
+{
+  "_embedded": {
+    "releases": [
+      {
+        "version": "3.0.2-SNAPSHOT",
+        "status": "SNAPSHOT",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/3.0.2-SNAPSHOT/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/3.0.2-SNAPSHOT/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/3.0.2-SNAPSHOT"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-snapshots"
+          }
+        }
+      },
+      {
+        "version": "3.0.1",
+        "status": "GENERAL_AVAILABILITY",
+        "current": true,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/current/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/current/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/3.0.1"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.7.8-SNAPSHOT",
+        "status": "SNAPSHOT",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.8-SNAPSHOT/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.8-SNAPSHOT/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.7.8-SNAPSHOT"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-snapshots"
+          }
+        }
+      },
+      {
+        "version": "2.7.7",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.7/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.7.7/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.7.7"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.6.14",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.6.14/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.6.14/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.6.14"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.5.14",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.14/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.5.14/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.5.14"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      },
+      {
+        "version": "2.4.13",
+        "status": "GENERAL_AVAILABILITY",
+        "current": false,
+        "referenceDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.13/reference/html/",
+        "apiDocUrl": "https://docs.spring.io/spring-boot/docs/2.4.13/api/",
+        "_links": {
+          "self": {
+            "href": "https://spring.io/api/projects/spring-boot/releases/2.4.13"
+          },
+          "repository": {
+            "href": "https://spring.io/api/repositories/spring-releases"
+          }
+        }
+      }
+    ]
+  },
+  "_links": {
+    "current": {
+      "href": "https://spring.io/api/projects/spring-boot/releases/current"
+    },
+    "project": {
+      "href": "https://spring.io/api/projects/spring-boot"
+    }
+  }
+}