Move spring-boot-properties-migrator into spring-boot-tools

Closes gh-32491

settings.gradle

@@ -62,6 +62,7 @@ include "spring-boot-project:spring-boot-tools:spring-boot-jarmode-layertools"
 include "spring-boot-project:spring-boot-tools:spring-boot-loader"
 include "spring-boot-project:spring-boot-tools:spring-boot-loader-tools"
 include "spring-boot-project:spring-boot-tools:spring-boot-maven-plugin"
+include "spring-boot-project:spring-boot-tools:spring-boot-properties-migrator"
 include "spring-boot-project:spring-boot-tools:spring-boot-test-support"
 include "spring-boot-project:spring-boot"
 include "spring-boot-project:spring-boot-autoconfigure"
@@ -70,7 +71,6 @@ include "spring-boot-project:spring-boot-actuator-autoconfigure"
 include "spring-boot-project:spring-boot-cli"
 include "spring-boot-project:spring-boot-devtools"
 include "spring-boot-project:spring-boot-docs"
-include "spring-boot-project:spring-boot-properties-migrator"
 include "spring-boot-project:spring-boot-test"
 include "spring-boot-project:spring-boot-test-autoconfigure"
 include "spring-boot-tests:spring-boot-integration-tests:spring-boot-configuration-processor-tests"

spring-boot-project/spring-boot-tools/spring-boot-properties-migrator/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-	id "java-library"
+	id "java"
 	id "org.springframework.boot.conventions"
 	id "org.springframework.boot.deployed"
 }
@@ -7,11 +7,16 @@ plugins {
 description = "Spring Boot Properties Migrator"
 
 dependencies {
-	api(project(":spring-boot-project:spring-boot"))
-	api(project(":spring-boot-project:spring-boot-tools:spring-boot-configuration-metadata"))
+	implementation(project(":spring-boot-project:spring-boot"))
+	implementation(project(":spring-boot-project:spring-boot-tools:spring-boot-configuration-metadata"))
 
 	testImplementation(project(":spring-boot-project:spring-boot-test"))
 	testImplementation("org.junit.jupiter:junit-jupiter")
 	testImplementation("org.assertj:assertj-core")
 	testImplementation("org.springframework:spring-test")
 }
+
+tasks.named("javadoc").configure {
+	// No public or protected classes
+	enabled = false
+}

spring-boot-project/spring-boot-tools/spring-boot-properties-migrator/src/main/java/org/springframework/boot/context/properties/migrator/PropertiesMigrationListener.java

@@ -36,12 +36,11 @@ import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
 /**
  * An {@link ApplicationListener} that inspects the {@link ConfigurableEnvironment
  * environment} for configuration keys that need to be migrated. Automatically renames the
- * keys that have a matching replacement and log a report of what was discovered.
+ * keys that have a matching replacement and logs a report of what was discovered.
  *
  * @author Stephane Nicoll
- * @since 2.0.0
  */
-public class PropertiesMigrationListener implements ApplicationListener<SpringApplicationEvent> {
+class PropertiesMigrationListener implements ApplicationListener<SpringApplicationEvent> {
 
 	private static final Log logger = LogFactory.getLog(PropertiesMigrationListener.class);