8356977: UTF-8 cleanups

Reviewed-by: naoto, prr

src/java.base/share/classes/java/util/Locale.java

@@ -385,10 +385,10 @@ import sun.util.locale.provider.TimeZoneNameUtility;
  * {@snippet lang = java:
  *     var number = 1000;
  *     NumberFormat.getCurrencyInstance(Locale.US).format(number); // returns "$1,000.00"
- *     NumberFormat.getCurrencyInstance(Locale.JAPAN).format(number); // returns "\u00A51,000""
+ *     NumberFormat.getCurrencyInstance(Locale.JAPAN).format(number); // returns "¥1,000""
  *     var date = LocalDate.of(2024, 1, 1);
  *     DateTimeFormatter.ofLocalizedDate(FormatStyle.LONG).localizedBy(Locale.US).format(date); // returns "January 1, 2024"
- *     DateTimeFormatter.ofLocalizedDate(FormatStyle.LONG).localizedBy(Locale.JAPAN).format(date); // returns "2024\u5e741\u67081\u65e5"
+ *     DateTimeFormatter.ofLocalizedDate(FormatStyle.LONG).localizedBy(Locale.JAPAN).format(date); // returns "2024年1月1日"
  * }
  *
  * <h2><a id="LocaleMatching">Locale Matching</a></h2>

src/java.base/share/classes/java/util/LocaleISOData.java

@@ -239,7 +239,7 @@ class LocaleISOData {
         + "AT" + "AUT"  // Austria, Republic of
         + "AU" + "AUS"  // Australia, Commonwealth of
         + "AW" + "ABW"  // Aruba
-        + "AX" + "ALA"  // \u00c5land Islands
+        + "AX" + "ALA"  // Åland Islands
         + "AZ" + "AZE"  // Azerbaijan, Republic of
         + "BA" + "BIH"  // Bosnia and Herzegovina
         + "BB" + "BRB"  // Barbados

src/java.base/share/classes/java/util/PropertyResourceBundle.java

@@ -81,7 +81,7 @@ import sun.util.ResourceBundleEnumeration;
  * Keys are case-sensitive.
  * {@snippet lang=properties :
  *     # MessageFormat pattern
- *     s1=Die Platte \"{1}\" enth\u00E4lt {0}.
+ *     s1=Die Platte \"{1}\" enthält {0}.
  *     # location of {0} in pattern
  *     s2=1
  *     # sample disk name
@@ -93,7 +93,7 @@ import sun.util.ResourceBundleEnumeration;
  *     # third ChoiceFormat choice
  *     s6={0,number} Dateien
  *     # sample date
- *     s7=3. M\u00E4rz 1996
+ *     s7=3. März 1996
  * }
  *
  * @apiNote

src/java.base/share/classes/sun/security/util/DomainName.java

@@ -61,7 +61,7 @@ import sun.security.ssl.SSLLogger;
  *      co.uk
  *      k12.ak.us
  *      com.tw
- *      \u7db2\u8def.tw
+ *      網路.tw
  *
  * Public suffixes effectively denote registration authorities.
  *

src/java.desktop/share/classes/javax/swing/Action.java

@@ -263,7 +263,7 @@ public interface Action extends ActionListener {
      * commonly used to specify a mnemonic.  For example:
      * <code>myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.VK_A)</code>
      * sets the mnemonic of <code>myAction</code> to 'a', while
-     * <code>myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.getExtendedKeyCodeForChar('\u0444'))</code>
+     * <code>myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.getExtendedKeyCodeForChar('ф'))</code>
      * sets the mnemonic of <code>myAction</code> to Cyrillic letter "Ef".
      *
      * @since 1.3

test/jdk/java/awt/event/KeyEvent/KeyTyped/EscapeKeyTyped.java

@@ -87,7 +87,7 @@ public class EscapeKeyTyped {
             public void keyPressed(KeyEvent e) {
                 printKey(e);
                 int keychar = e.getKeyChar();
-                if (keychar == 27) { // Escape character is 27 or \u0021
+                if (keychar == 27) { // Escape character is 27 or \u001b
                     escapeKeyTypedReceived = true;
                 }
             }

test/jdk/java/awt/print/RemotePrinterStatusRefresh/RemotePrinterStatusRefresh.java

@@ -185,7 +185,7 @@ public class RemotePrinterStatusRefresh extends WindowAdapter {
                     + "Step 3: Compare the list of printers in \"Before\" and "
                     +          "\"After\" lists.\n"
                     + "              Added printers are highlighted with "
-                    +               "green color, removed ones \u2014 with "
+                    +               "green color, removed ones with "
                     +               "red color.\n"
                     + "Step 4: Click Pass if the list of printers is correctly "
                     +          "updated.\n"

test/jdk/java/nio/file/Path/UriImportExport.java

@@ -128,7 +128,7 @@ public class UriImportExport {
             testUri("file:///foo/bar/doesnotexist");
             testUri("file:/foo/bar/doesnotexist");
 
-            // file:///foo/bar/\u0440\u0443\u0441\u0441\u043A\u0438\u0439 (Russian)
+            // file:///foo/bar/русский (Russian)
             testUri("file:///foo/bar/%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9");
 
             // invalid

test/jdk/java/util/Currency/ValidateISO4217.java

@@ -131,7 +131,7 @@ public class ValidateISO4217 {
              */
             {"GS", "GBP", "826", "2"},      // South Georgia And The South Sandwich Islands
             /* Not defined in ISO 4217 list, but defined in .properties file. */
-            {"AX", "EUR", "978", "2"},      // \u00c5LAND ISLANDS
+            {"AX", "EUR", "978", "2"},      // ÅLAND ISLANDS
             {"PS", "ILS", "376", "2"},      // Palestinian Territory, Occupied
             /* Not defined in ISO 4217 list, but added in ISO 3166 country code list */
             {"JE", "GBP", "826", "2"},      // Jersey

test/jdk/java/util/Locale/LocaleProvidersFormat.java

@@ -85,7 +85,7 @@ public class LocaleProvidersFormat {
 
     /*
      * 8027289: Ensure if underlying system format locale is zh_CN, the Window's currency
-     * symbol under HOST provider is \u00A5, the yen (yuan) sign.
+     * symbol under HOST provider is ¥, the yen (yuan) sign.
      */
     @Test
     @EnabledOnOs(WINDOWS)

test/jdk/tools/jpackage/helpers/jdk/jpackage/test/FileAssociations.java

@@ -135,7 +135,7 @@ public final class FileAssociations {
 
             // To test unicode arguments on Windows manually:
             // 1. add the following argument ("Hello" in Bulgarian) to the
-            //    additionalArgs list: "\u0417\u0434\u0440\u0430\u0432\u0435\u0439\u0442\u0435"
+            //    additionalArgs list: "Здравейте"
             // 2. in Control Panel -> Region -> Administrative -> Language for non-Unicode programs
             //    change the system locale to "Bulgarian (Bulgaria)"
             // 3. reboot Windows and re-run the test

test/langtools/jdk/javadoc/doclet/testRelativeLinks/pkg/C.java

@@ -33,7 +33,7 @@ package pkg;
 public class C {
 
     /**
-     * Here is a relative link in a field:\u0130
+     * Here is a relative link in a field:
      * <a href="relative-field-link.html">relative field link</a>.
      */
     public C field = null;

test/langtools/tools/javac/api/guide/Test.java

@@ -25,7 +25,7 @@
  * @test
  * @bug     6427274 6347778 6469079
  * @summary Various bugs fixed while writing Compiler API Guide
- * @author  Peter von der Ah\u0081
+ * @author  Peter von der Ahé
  * @library ../lib
  * @modules java.compiler
  *          jdk.compiler