From 473e05639085a9e97ecbdfbdeff28d3f9027c3e9 Mon Sep 17 00:00:00 2001
From: vincent <xinwei0432@gmail.com>
Date: Sun, 24 Nov 2019 21:00:38 +0800
Subject: [PATCH] Throw an exception on a never null method when result set is
 empty

---
 .../java/javax/money/spi/MonetaryCurrenciesSingletonSpi.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/javax/money/spi/MonetaryCurrenciesSingletonSpi.java b/src/main/java/javax/money/spi/MonetaryCurrenciesSingletonSpi.java
index d5311521c..a52c974c2 100644
--- a/src/main/java/javax/money/spi/MonetaryCurrenciesSingletonSpi.java
+++ b/src/main/java/javax/money/spi/MonetaryCurrenciesSingletonSpi.java
@@ -169,7 +169,7 @@ default Set<CurrencyUnit> getCurrencies(String... providers) {
     default CurrencyUnit getCurrency(CurrencyQuery query) {
         Set<CurrencyUnit> currencies = getCurrencies(query);
         if (currencies.isEmpty()) {
-            return null;
+            throw new MonetaryException("CurrencyUnit not found: " + query);
         }
         if (currencies.size() == 1) {
             return currencies.iterator().next();