Recover from missing bundle.

Author: maisonobe

hipparchus-core/src/main/java/org/hipparchus/exception/Localizable.java

@@ -23,6 +23,7 @@
 
 import java.io.Serializable;
 import java.util.Locale;
+import java.util.MissingResourceException;
 import java.util.ResourceBundle;
 
 /**
@@ -57,15 +58,19 @@ public interface Localizable extends Serializable {
      */
     default String getLocalizedString(final String baseName, final String key, final Locale locale) {
 
-        final ResourceBundle bundle = ResourceBundle.getBundle(baseName, locale, new UTF8Control());
-        if (bundle.getLocale().getLanguage().equals(locale.getLanguage()))
-        {
-            final String translated = bundle.getString(key);
-            if (!(translated.isEmpty() || translated.toLowerCase().contains("missing translation")))
+        try {
+            final ResourceBundle bundle = ResourceBundle.getBundle(baseName, locale, new UTF8Control());
+            if (bundle.getLocale().getLanguage().equals(locale.getLanguage()))
             {
-                // the value of the resource is the translated format
-                return translated;
+                final String translated = bundle.getString(key);
+                if (!(translated.isEmpty() || translated.toLowerCase().contains("missing translation")))
+                {
+                    // the value of the resource is the translated format
+                    return translated;
+                }
             }
+        } catch (MissingResourceException mre) { // NOPMD
+            // do nothing here
         }
 
         // either the locale is not supported or the resource is not translated, or