Improve error message for production panel customization. (#11753)

* Improve error message for production panel customization. * Use a stream instead.
triplea-game · Jul 10, 2023 · 1b08bc2 · 1b08bc2
1 parent fa68931
commit 1b08bc2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/game-app/game-core/src/main/java/games/strategy/triplea/ui/TabbedProductionPanel.java b/game-app/game-core/src/main/java/games/strategy/triplea/ui/TabbedProductionPanel.java
@@ -145,8 +145,12 @@ private void checkLists(final List<Tuple<String, List<Rule>>> ruleLists) {
       }
     }
     if (!rulesCopy.isEmpty()) {
+      final String missing =
+          rulesCopy.stream()
+              .map(rule -> rule.getProductionRule().getName())
+              .collect(Collectors.joining(", "));
       throw new IllegalStateException(
-          "production_tabs: must include all player production rules/units");
+          "production_tabs: must include all player production rules/units; missing: " + missing);
     }
   }