Spring/spring-framework
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Polishing

Browse Source
This commit is contained in:
Juergen Hoeller
2024-05-14 13:03:35 +02:00
parent e81c788274
commit ee3e1591de
10 changed files with 36 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
spring-core/src/main/java/org/springframework/util/MultiValueMapAdapter.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2023 the original author or authors.
* Copyright 2002-2024 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.
@@ -59,7 +59,7 @@ public class MultiValueMapAdapter<K, V> implements MultiValueMap<K, V>, Serializ
@Nullable
public V getFirst(K key) {
List<V> values = this.targetMap.get(key);
return (values != null && !values.isEmpty() ? values.get(0) : null);
return (!CollectionUtils.isEmpty(values) ? values.get(0) : null);
}
@Override
@@ -95,7 +95,7 @@ public class MultiValueMapAdapter<K, V> implements MultiValueMap<K, V>, Serializ
public Map<K, V> toSingleValueMap() {
Map<K, V> singleValueMap = CollectionUtils.newLinkedHashMap(this.targetMap.size());
this.targetMap.forEach((key, values) -> {
if (values != null && !values.isEmpty()) {
if (!CollectionUtils.isEmpty(values)) {
singleValueMap.put(key, values.get(0));
}
});

11
spring-core/src/main/java/org/springframework/util/StringUtils.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2023 the original author or authors.
* Copyright 2002-2024 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.
@@ -123,7 +123,7 @@ public abstract class StringUtils {
* @see #hasText(CharSequence)
*/
public static boolean hasLength(@Nullable CharSequence str) {
return (str != null && str.length() > 0);
return (str != null && !str.isEmpty()); // as of JDK 15
}
/**
@@ -791,6 +791,7 @@ public abstract class StringUtils {
* and {@code "0"} through {@code "9"} stay the same.</li>
* <li>Special characters {@code "-"}, {@code "_"}, {@code "."}, and {@code "*"} stay the same.</li>
* <li>A sequence "{@code %<i>xy</i>}" is interpreted as a hexadecimal representation of the character.</li>
* <li>For all other characters (including those already decoded), the output is undefined.</li>
* </ul>
* @param source the encoded String
* @param charset the character set
@@ -839,7 +840,7 @@ public abstract class StringUtils {
* the {@link Locale#toString} format as well as BCP 47 language tags as
* specified by {@link Locale#forLanguageTag}.
* @param localeValue the locale value: following either {@code Locale's}
* {@code toString()} format ("en", "en_UK", etc), also accepting spaces as
* {@code toString()} format ("en", "en_UK", etc.), also accepting spaces as
* separators (as an alternative to underscores), or BCP 47 (e.g. "en-UK")
* @return a corresponding {@code Locale} instance, or {@code null} if none
* @throws IllegalArgumentException in case of an invalid locale specification
@@ -868,7 +869,7 @@ public abstract class StringUtils {
* <p><b>Note: This delegate does not accept the BCP 47 language tag format.
* Please use {@link #parseLocale} for lenient parsing of both formats.</b>
* @param localeString the locale {@code String}: following {@code Locale's}
* {@code toString()} format ("en", "en_UK", etc), also accepting spaces as
* {@code toString()} format ("en", "en_UK", etc.), also accepting spaces as
* separators (as an alternative to underscores)
* @return a corresponding {@code Locale} instance, or {@code null} if none
* @throws IllegalArgumentException in case of an invalid locale specification
@@ -876,7 +877,7 @@ public abstract class StringUtils {
@SuppressWarnings("deprecation") // for Locale constructors on JDK 19
@Nullable
public static Locale parseLocaleString(String localeString) {
if (localeString.equals("")) {
if (localeString.isEmpty()) {
return null;
}