From cdca28ddbc00ab2bdf25dd10ee59f0c9ff5aaf64 Mon Sep 17 00:00:00 2001
From: Stephen Colebourne <scolebourne@joda.org>
Date: Mon, 19 Aug 2024 21:23:13 +0100
Subject: [PATCH] Handle currency data on Java 21 (#138)

* Adjust code so the symbol for currency XXX remains as XXX
---
 src/main/java/org/joda/money/CurrencyUnit.java     | 8 ++++++++
 src/test/java/org/joda/money/TestCurrencyUnit.java | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/src/main/java/org/joda/money/CurrencyUnit.java b/src/main/java/org/joda/money/CurrencyUnit.java
index 263e930..a9cc6a2 100644
--- a/src/main/java/org/joda/money/CurrencyUnit.java
+++ b/src/main/java/org/joda/money/CurrencyUnit.java
@@ -577,6 +577,10 @@ public boolean isPseudoCurrency() {
      * @return the JDK currency instance, never null
      */
     public String getSymbol() {
+        // Java 21 currency data uses a symbol, we want to retain this as XXX
+        if ("XXX".equals(code)) {
+            return code;
+        }
         try {
             return Currency.getInstance(code).getSymbol();
         } catch (IllegalArgumentException ex) {
@@ -597,6 +601,10 @@ public String getSymbol() {
      */
     public String getSymbol(Locale locale) {
         MoneyUtils.checkNotNull(locale, "Locale must not be null");
+        // Java 21 currency data uses a symbol, we want to retain this as XXX
+        if ("XXX".equals(code)) {
+            return code;
+        }
         try {
             return Currency.getInstance(code).getSymbol(locale);
         } catch (IllegalArgumentException ex) {
diff --git a/src/test/java/org/joda/money/TestCurrencyUnit.java b/src/test/java/org/joda/money/TestCurrencyUnit.java
index 67196e8..1bfa1dc 100644
--- a/src/test/java/org/joda/money/TestCurrencyUnit.java
+++ b/src/test/java/org/joda/money/TestCurrencyUnit.java
@@ -712,6 +712,8 @@ void test_getSymbol_Locale_XXX() {
             Locale.setDefault(Locale.UK);
             CurrencyUnit test = CurrencyUnit.of("XXX");
             assertThat(test.getSymbol(Locale.FRANCE)).isEqualTo("XXX");
+            test = CurrencyUnit.of("XXX");
+            assertThat(test.getSymbol(Locale.US)).isEqualTo("XXX");
         } finally {
             Locale.setDefault(loc);
         }