Polishing

spring-core/src/main/java/org/springframework/core/env/AbstractEnvironment.java

@@ -48,6 +48,7 @@ import org.springframework.util.StringUtils;
  *
  * @author Chris Beams
  * @author Juergen Hoeller
+ * @author Phillip Webb
  * @since 3.1
  * @see ConfigurableEnvironment
  * @see StandardEnvironment
@@ -129,6 +130,7 @@ public abstract class AbstractEnvironment implements ConfigurableEnvironment {
 	 * {@link #customizePropertySources(MutablePropertySources)} during
 	 * construction to allow subclasses to contribute or manipulate
 	 * {@link PropertySource} instances as appropriate.
+	 * @param propertySources property sources to use
 	 * @since 5.3.4
 	 * @see #customizePropertySources(MutablePropertySources)
 	 */
@@ -138,6 +140,7 @@ public abstract class AbstractEnvironment implements ConfigurableEnvironment {
 		customizePropertySources(propertySources);
 	}
 
+
 	/**
 	 * Factory method used to create the {@link ConfigurablePropertyResolver}
 	 * instance used by the Environment.

spring-core/src/main/java/org/springframework/core/env/StandardEnvironment.java

@@ -46,6 +46,7 @@ package org.springframework.core.env;
  * variable names.
  *
  * @author Chris Beams
+ * @author Phillip Webb
  * @since 3.1
  * @see ConfigurableEnvironment
  * @see SystemEnvironmentPropertySource
@@ -61,13 +62,15 @@ public class StandardEnvironment extends AbstractEnvironment {
 
 
 	/**
-	 * Create a new {@code StandardEnvironment} instance.
+	 * Create a new {@code StandardEnvironment} instance with a default
+	 * {@link MutablePropertySources} instance.
 	 */
 	public StandardEnvironment() {
 	}
 
 	/**
-	 * Create a new {@code StandardEnvironment} instance with a specific {@link MutablePropertySources} instance.
+	 * Create a new {@code StandardEnvironment} instance with a specific
+	 * {@link MutablePropertySources} instance.
 	 * @param propertySources property sources to use
 	 * @since 5.3.4
 	 */

spring-jcl/src/main/java/org/apache/commons/logging/LogAdapter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -278,7 +278,7 @@ final class LogAdapter {
 
 		protected final String name;
 
-		protected transient T logger;
+		protected final transient T logger;
 
 		public Slf4jLog(T logger) {
 			this.name = logger.getName();
@@ -500,9 +500,9 @@ final class LogAdapter {
 	@SuppressWarnings("serial")
 	private static class JavaUtilLog implements Log, Serializable {
 
-		private String name;
+		private final String name;
 
-		private transient java.util.logging.Logger logger;
+		private final transient java.util.logging.Logger logger;
 
 		public JavaUtilLog(String name) {
 			this.name = name;