Rely on configuration properties annotation processor

This commit switches from manual metadata to using the configuration
properties annotation processor like other modules do. This reduces
the amount of manual metadata, document missing properties and prevent
inconsistencies going forward.

Closes gh-46584

Author: snicoll

spring-boot-project/spring-boot-test-autoconfigure/build.gradle

@@ -16,6 +16,7 @@
 
 plugins {
 	id "java-library"
+	id "org.springframework.boot.configuration-properties"
 	id "org.springframework.boot.deployed"
 	id "org.springframework.boot.docker-test"
 	id "org.springframework.boot.optional-dependencies"
@@ -146,16 +147,6 @@ dependencies {
 	testImplementation("org.thymeleaf:thymeleaf")
 }
 
-configurations {
-	configurationPropertiesMetadata
-}
-
-artifacts {
-	configurationPropertiesMetadata new File(sourceSets.main.output.resourcesDir, "META-INF/spring-configuration-metadata.json"), { artifact ->
-		artifact.builtBy sourceSets.main.processResourcesTaskName
-	}
-}
-
 test {
 	include "**/*Tests.class"
 }

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/servlet/SpringBootMockMvcBuilderCustomizer.java

@@ -59,10 +59,19 @@ public class SpringBootMockMvcBuilderCustomizer implements MockMvcBuilderCustomi
 
 	private final WebApplicationContext context;
 
+	/**
+	 * Whether to add servlet filters.
+	 */
 	private boolean addFilters = true;
 
+	/**
+	 * MVC Print option.
+	 */
 	private MockMvcPrint print = MockMvcPrint.DEFAULT;
 
+	/**
+	 * Whether to only print failed exchanges.
+	 */
 	private boolean printOnlyOnFailure = true;
 
 	/**

spring-boot-project/spring-boot-test-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -0,0 +1,16 @@
+{
+  "properties": [
+    {
+      "name": "spring.test.database.replace",
+      "type": "org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase$Replace",
+      "description": "Type of existing DataSource to replace.",
+      "defaultValue": "any"
+    },
+    {
+      "name": "spring.test.observability.auto-configure",
+      "type": "java.lang.Boolean",
+      "description": "Whether observability should be auto-configured in tests.",
+      "defaultValue": false
+    }
+  ]
+}