LocaleEditor supports BCP 47 language tags as well

Closes gh-33348

spring-beans/src/main/java/org/springframework/beans/propertyeditors/LocaleEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 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.
@@ -30,13 +30,13 @@ import org.springframework.util.StringUtils;
  * @author Juergen Hoeller
  * @since 26.05.2003
  * @see java.util.Locale
- * @see org.springframework.util.StringUtils#parseLocaleString
+ * @see org.springframework.util.StringUtils#parseLocale
  */
 public class LocaleEditor extends PropertyEditorSupport {
 
 	@Override
 	public void setAsText(String text) {
-		setValue(StringUtils.parseLocaleString(text));
+		setValue(StringUtils.parseLocale(text));
 	}
 
 	@Override

spring-beans/src/test/java/org/springframework/beans/propertyeditors/CustomEditorTests.java

@@ -648,6 +648,10 @@ class CustomEditorTests {
 		assertThat(localeEditor.getValue()).isEqualTo(Locale.CANADA);
 		assertThat(localeEditor.getAsText()).isEqualTo("en_CA");
 
+		localeEditor = new LocaleEditor();
+		localeEditor.setAsText("zh-Hans");
+		assertThat(localeEditor.getValue()).isEqualTo(Locale.forLanguageTag("zh-Hans"));
+
 		localeEditor = new LocaleEditor();
 		assertThat(localeEditor.getAsText()).isEmpty();
 	}