Fix use of deprecated methods

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

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.autoconfigure.flyway;
 
+import java.sql.DatabaseMetaData;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
@@ -408,7 +409,7 @@ public class FlywayAutoConfiguration {
 
 		private DatabaseDriver getDatabaseDriver() {
 			try {
-				String url = JdbcUtils.extractDatabaseMetaData(this.dataSource, "getURL");
+				String url = JdbcUtils.extractDatabaseMetaData(this.dataSource, DatabaseMetaData::getURL);
 				return DatabaseDriver.fromJdbcUrl(url);
 			}
 			catch (MetaDataAccessException ex) {

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jooq/SqlDialectLookup.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -16,6 +16,8 @@
 
 package org.springframework.boot.autoconfigure.jooq;
 
+import java.sql.DatabaseMetaData;
+
 import javax.sql.DataSource;
 
 import org.apache.commons.logging.Log;
@@ -49,7 +51,7 @@ final class SqlDialectLookup {
 			return SQLDialect.DEFAULT;
 		}
 		try {
-			String url = JdbcUtils.extractDatabaseMetaData(dataSource, "getURL");
+			String url = JdbcUtils.extractDatabaseMetaData(dataSource, DatabaseMetaData::getURL);
 			SQLDialect sqlDialect = JDBCUtils.dialect(url);
 			if (sqlDialect != null) {
 				return sqlDialect;

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/orm/jpa/DatabaseLookup.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -16,6 +16,7 @@
 
 package org.springframework.boot.autoconfigure.orm.jpa;
 
+import java.sql.DatabaseMetaData;
 import java.util.Collections;
 import java.util.EnumMap;
 import java.util.Map;
@@ -70,7 +71,7 @@ final class DatabaseLookup {
 			return Database.DEFAULT;
 		}
 		try {
-			String url = JdbcUtils.extractDatabaseMetaData(dataSource, "getURL");
+			String url = JdbcUtils.extractDatabaseMetaData(dataSource, DatabaseMetaData::getURL);
 			DatabaseDriver driver = DatabaseDriver.fromJdbcUrl(url);
 			Database database = LOOKUP.get(driver);
 			if (database != null) {

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/reactive/WebFluxAutoConfigurationTests.java

@@ -407,8 +407,8 @@ class WebFluxAutoConfigurationTests {
 			assertThat(handlerMap).hasSize(2);
 			for (Object handler : handlerMap.values()) {
 				if (handler instanceof ResourceWebHandler) {
-					assertThat(((ResourceWebHandler) handler).getCacheControl())
-							.isEqualToComparingFieldByField(CacheControl.maxAge(5, TimeUnit.SECONDS));
+					assertThat(((ResourceWebHandler) handler).getCacheControl()).usingRecursiveComparison()
+							.isEqualTo(CacheControl.maxAge(5, TimeUnit.SECONDS));
 				}
 			}
 		});
@@ -424,8 +424,8 @@ class WebFluxAutoConfigurationTests {
 					assertThat(handlerMap).hasSize(2);
 					for (Object handler : handlerMap.values()) {
 						if (handler instanceof ResourceWebHandler) {
-							assertThat(((ResourceWebHandler) handler).getCacheControl()).isEqualToComparingFieldByField(
-									CacheControl.maxAge(5, TimeUnit.SECONDS).proxyRevalidate());
+							assertThat(((ResourceWebHandler) handler).getCacheControl()).usingRecursiveComparison()
+									.isEqualTo(CacheControl.maxAge(5, TimeUnit.SECONDS).proxyRevalidate());
 						}
 					}
 				});

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

@@ -918,8 +918,8 @@ class WebMvcAutoConfigurationTests {
 		for (Object handler : handlerMap.keySet()) {
 			if (handler instanceof ResourceHttpRequestHandler) {
 				assertThat(((ResourceHttpRequestHandler) handler).getCacheSeconds()).isEqualTo(-1);
-				assertThat(((ResourceHttpRequestHandler) handler).getCacheControl())
-						.isEqualToComparingFieldByField(CacheControl.maxAge(5, TimeUnit.SECONDS).proxyRevalidate());
+				assertThat(((ResourceHttpRequestHandler) handler).getCacheControl()).usingRecursiveComparison()
+						.isEqualTo(CacheControl.maxAge(5, TimeUnit.SECONDS).proxyRevalidate());
 			}
 		}
 	}

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jdbc/AbstractDataSourceInitializer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 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.
@@ -16,6 +16,8 @@
 
 package org.springframework.boot.jdbc;
 
+import java.sql.DatabaseMetaData;
+
 import javax.annotation.PostConstruct;
 import javax.sql.DataSource;
 
@@ -87,7 +89,7 @@ public abstract class AbstractDataSourceInitializer {
 	protected String getDatabaseName() {
 		try {
 			String productName = JdbcUtils.commonDatabaseName(
-					JdbcUtils.extractDatabaseMetaData(this.dataSource, "getDatabaseProductName").toString());
+					JdbcUtils.extractDatabaseMetaData(this.dataSource, DatabaseMetaData::getDatabaseProductName));
 			DatabaseDriver databaseDriver = DatabaseDriver.fromProductName(productName);
 			if (databaseDriver == DatabaseDriver.UNKNOWN) {
 				throw new IllegalStateException("Unable to detect database type");