JAVAMONEY-160: equal an return false for the same CurrencyUnits

Author: lukasniemeier-zalando

src/main/java/org/javamoney/moneta/BuildableCurrencyUnit.java

@@ -116,9 +116,9 @@ public boolean equals(Object obj) {
         if (obj == this) {
             return true;
         }
-        if (obj instanceof BuildableCurrencyUnit) {
-            BuildableCurrencyUnit other = (BuildableCurrencyUnit) obj;
-            return Objects.equals(currencyCode, other.currencyCode);
+        if (obj instanceof CurrencyUnit) {
+            CurrencyUnit other = (CurrencyUnit) obj;
+            return Objects.equals(getCurrencyCode(), other.getCurrencyCode());
         }
         return false;
     }