diff --git a/spring-beans/src/main/java/org/springframework/beans/CachedIntrospectionResults.java b/spring-beans/src/main/java/org/springframework/beans/CachedIntrospectionResults.java
index 467bea4d38..0407481690 100644
--- a/spring-beans/src/main/java/org/springframework/beans/CachedIntrospectionResults.java
+++ b/spring-beans/src/main/java/org/springframework/beans/CachedIntrospectionResults.java
@@ -78,7 +78,7 @@ public class CachedIntrospectionResults {
 	 * mode when calling the JavaBeans {@link Introspector}: "spring.beaninfo.ignore", with a
 	 * value of "true" skipping the search for {@code BeanInfo} classes (typically for scenarios
 	 * where no such classes are being defined for beans in the application in the first place).
-	 * <p>Default is "false", considering all {@code BeanInfo} metadata classes, like for
+	 * <p>The default is "false", considering all {@code BeanInfo} metadata classes, like for
 	 * standard {@link Introspector#getBeanInfo(Class)} calls. Consider switching this flag to
 	 * "true" if you experience repeated ClassLoader access for non-existing {@code BeanInfo}
 	 * classes, in case such access is expensive on startup or on lazy loading.
diff --git a/spring-core/src/main/java/org/springframework/core/env/ReadOnlySystemAttributesMap.java b/spring-core/src/main/java/org/springframework/core/env/ReadOnlySystemAttributesMap.java
index 427ac70a07..c1af754dc0 100644
--- a/spring-core/src/main/java/org/springframework/core/env/ReadOnlySystemAttributesMap.java
+++ b/spring-core/src/main/java/org/springframework/core/env/ReadOnlySystemAttributesMap.java
@@ -41,7 +41,7 @@ abstract class ReadOnlySystemAttributesMap implements Map<String, String> {
 
 	@Override
 	public boolean containsKey(Object key) {
-		return get(key) != null;
+		return (get(key) != null);
 	}
 
 	/**
@@ -51,9 +51,7 @@ abstract class ReadOnlySystemAttributesMap implements Map<String, String> {
 	@Override
 	public String get(Object key) {
 		Assert.isInstanceOf(String.class, key,
-			String.format("expected key [%s] to be of type String, got %s",
-					key, key.getClass().getName()));
-
+			String.format("expected key [%s] to be of type String, got %s", key, key.getClass().getName()));
 		return this.getSystemAttribute((String) key);
 	}
 
@@ -64,11 +62,11 @@ abstract class ReadOnlySystemAttributesMap implements Map<String, String> {
 
 	/**
 	 * Template method that returns the underlying system attribute.
-	 *
 	 * <p>Implementations typically call {@link System#getProperty(String)} or {@link System#getenv(String)} here.
 	 */
 	protected abstract String getSystemAttribute(String attributeName);
 
+
 	// Unsupported
 
 	@Override
@@ -102,7 +100,7 @@ abstract class ReadOnlySystemAttributesMap implements Map<String, String> {
 	}
 
 	@Override
-	public void putAll(Map<? extends String, ? extends String> m) {
+	public void putAll(Map<? extends String, ? extends String> map) {
 		throw new UnsupportedOperationException();
 	}