AutoConfiguration for Flyway's JavaMigration

fixes gh-15446

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration.java

@@ -20,6 +20,7 @@
 import org.flywaydb.core.api.MigrationVersion;
 import org.flywaydb.core.api.callback.Callback;
 import org.flywaydb.core.api.configuration.FluentConfiguration;
+import org.flywaydb.core.api.migration.JavaMigration;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -103,6 +104,7 @@ public Flyway flyway(FlywayProperties properties, DataSourceProperties dataSourc
 				ResourceLoader resourceLoader, ObjectProvider<DataSource> dataSource,
 				@FlywayDataSource ObjectProvider<DataSource> flywayDataSource,
 				ObjectProvider<FlywayConfigurationCustomizer> fluentConfigurationCustomizers,
+				ObjectProvider<JavaMigration> javaMigrations,
 				ObjectProvider<Callback> callbacks) {
 			FluentConfiguration configuration = new FluentConfiguration(resourceLoader.getClassLoader());
 			DataSource dataSourceToMigrate = configureDataSource(configuration, properties, dataSourceProperties,
@@ -113,6 +115,8 @@ public Flyway flyway(FlywayProperties properties, DataSourceProperties dataSourc
 			configureCallbacks(configuration, orderedCallbacks);
 			fluentConfigurationCustomizers.orderedStream().forEach((customizer) -> customizer.customize(configuration));
 			configureFlywayCallbacks(configuration, orderedCallbacks);
+			JavaMigration[] migrations = javaMigrations.stream().toArray(JavaMigration[]::new);
+			configuration.javaMigrations(migrations);
 			return configuration.load();
 		}
 

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/flyway/FlywayAutoConfigurationTests.java

@@ -263,6 +263,15 @@ void customFlywayMigrationStrategy() {
 				});
 	}
 
+	@Test
+	public void flywayJavaMigrations() {
+		this.contextRunner.withUserConfiguration(EmbeddedDataSourceConfiguration.class,
+				FlywayJavaMigrationsConfiguration.class).run((context) -> {
+			Flyway flyway = context.getBean(Flyway.class);
+			assertThat(flyway.getConfiguration().getJavaMigrations().length).isEqualTo(2);
+		});
+	}
+
 	@Test
 	void customFlywayMigrationInitializer() {
 		this.contextRunner
@@ -456,6 +465,78 @@ DataSource flywayDataSource() {
 
 	}
 
+	@Configuration
+	protected static class FlywayJavaMigrationsConfiguration {
+
+		@Component
+		private static class Migration1 implements JavaMigration {
+
+			@Override
+			public MigrationVersion getVersion() {
+				return MigrationVersion.fromVersion("2");
+			}
+
+			@Override
+			public String getDescription() {
+				return "M1";
+			}
+
+			@Override
+			public Integer getChecksum() {
+				return 1;
+			}
+
+			@Override
+			public boolean isUndo() {
+				return false;
+			}
+
+			@Override
+			public boolean canExecuteInTransaction() {
+				return true;
+			}
+
+			@Override
+			public void migrate(org.flywaydb.core.api.migration.Context context) throws Exception {
+
+			}
+		}
+
+		@Component
+		private static class Migration2 implements JavaMigration {
+
+			@Override
+			public MigrationVersion getVersion() {
+				return MigrationVersion.fromVersion("3");
+			}
+
+			@Override
+			public String getDescription() {
+				return "M2";
+			}
+
+			@Override
+			public Integer getChecksum() {
+				return 2;
+			}
+
+			@Override
+			public boolean isUndo() {
+				return false;
+			}
+
+			@Override
+			public boolean canExecuteInTransaction() {
+				return false;
+			}
+
+			@Override
+			public void migrate(org.flywaydb.core.api.migration.Context context) throws Exception {
+
+			}
+		}
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class ResourceLoaderConfiguration {