8356978: Convert unicode sequences in Java source code to UTF-8

Co-authored-by: Alexey Ivanov <aivanov@openjdk.org>
Reviewed-by: naoto, prr, joehw

src/demo/share/jfc/Stylepad/HelloWorld.java

@@ -187,22 +187,18 @@ public class HelloWorld {
             new Run("none", "Hello from Cupertino")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u53F0\u5317\u554F\u5019\u60A8\u0021")
+            new Run("none", "台北問候您!")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u0391\u03B8\u03B7\u03BD\u03B1\u03B9\u0020" // Greek
-            + "\u03B1\u03C3\u03C0\u03B1\u03B6\u03BF\u03BD"
-            + "\u03C4\u03B1\u03B9\u0020\u03C5\u03BC\u03B1"
-            + "\u03C2\u0021")
+            new Run("none", "Αθηναι ασπαζονται υμας!") // Greek
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u6771\u4eac\u304b\u3089\u4eca\u65e5\u306f")
+            new Run("none", "東京から今日は")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u05e9\u05dc\u05d5\u05dd \u05de\u05d9\u05e8\u05d5"
-            + "\u05e9\u05dc\u05d9\u05dd")
+            new Run("none", "שלום מירושלים")
         }),
         new Paragraph("title", new Run[] {
-            new Run("none", "\u0633\u0644\u0627\u0645")
+            new Run("none", "سلام")
         }), };
 }

src/java.base/share/classes/sun/text/resources/JavaTimeSupplementary.java

@@ -232,8 +232,8 @@ public class JavaTimeSupplementary extends OpenListResourceBundle {
                     "Sha.",
                     "Ram.",
                     "Shaw.",
-                    "Dhu\u02bbl-Q.",
-                    "Dhu\u02bbl-H.",
+                    "Dhuʻl-Q.",
+                    "Dhuʻl-H.",
                     "",
                 }
             },
@@ -241,16 +241,16 @@ public class JavaTimeSupplementary extends OpenListResourceBundle {
                 new String[] {
                     "Muharram",
                     "Safar",
-                    "Rabi\u02bb I",
-                    "Rabi\u02bb II",
+                    "Rabiʻ I",
+                    "Rabiʻ II",
                     "Jumada I",
                     "Jumada II",
                     "Rajab",
-                    "Sha\u02bbban",
+                    "Shaʻban",
                     "Ramadan",
                     "Shawwal",
-                    "Dhu\u02bbl-Qi\u02bbdah",
-                    "Dhu\u02bbl-Hijjah",
+                    "Dhuʻl-Qiʻdah",
+                    "Dhuʻl-Hijjah",
                     "",
                 }
             },

src/jdk.localedata/share/classes/sun/text/resources/ext/FormatData_ja.java

@@ -87,7 +87,7 @@ public class FormatData_ja extends ParallelListResourceBundle {
         return new Object[][] {
             { "japanese.FirstYear",
                 new String[] {  // first year name
-                    "\u5143",   // "Gan"-nen
+                    "元",       // "Gan"-nen
                 }
             },
         };