update with new test cases

Author: xuemingshen-oracle

src/java.base/share/classes/java/lang/StringLatin1.java

@@ -275,7 +275,7 @@ private static int compareToFC0_UTF16(byte[] value, int off, int last, byte[] ot
         if (k1 < last || f1 != 0) {
             return 1;
         }
-        if (k2 < olast || f1 != 0) {
+        if (k2 < olast || f2 != 0) {
             return -1;
         }
         return 0;

src/java.base/share/classes/jdk/internal/lang/CaseFolding.java.template

@@ -50,7 +50,7 @@ public final class CaseFolding {
     */
     public static boolean isDefined(int cp) {
          return getDefined(cp) != -1;
-     }
+    }
 
    /**
     * Returns the case-folded form of the specified code point according
@@ -132,12 +132,11 @@ public final class CaseFolding {
     *           additionalClosingCharacters.contains(Character.toUpperCase(ch))
     * }</pre>
     *
-    * <p>
-    * @spec https://www.unicode.org/reports/tr18/#Simple_Loose_Matches
     * @param start the starting code point of the character range
     * @param end the ending code point of the character range
     * @return a {@code int[]} containing the all simple case equivalents of characters in the range, excluding
     *         those already in the range
+    * @spec https://www.unicode.org/reports/tr18/#Simple_Loose_Matches
     */
     public static int[] getClassRangeClosingCharacters(int start, int end) {
         int[] expanded = new int[expanded_case_cps.length];

test/jdk/java/lang/String/UnicodeCaseFoldingTest.java

@@ -251,7 +251,9 @@ static Stream<Arguments> caseFoldOrderingProvider() {
                 Arguments.of("\u03C2", "\u03C3", 0), // ς vs σ
                 Arguments.of("\uD835\uDD23", "R", 1), // 𝔯 (fraktur r) vs R
                 Arguments.of("\uFF26", "E", 1), // Ｆ (full-width F) vs E
-                Arguments.of("\u00C9clair", "Eclair", 1) // Éclair vs Eclair
+                Arguments.of("\u00C9clair", "Eclair", 1), // Éclair vs Eclair
+                Arguments.of("\u03bc\u00df", "\u00b5s", 1),
+                Arguments.of("\u00b5s", "\u03bc\u00df", -1)
         );
     }