refactor : 방어적 복사 사용

woowacourse · Be-poz · Mar 31, 2023 · Mar 22, 2023 · Mar 22, 2023 · Mar 22, 2023
commit af353d3c1f428e37ed36a5c000d155517dd1b32b
diff --git a/src/main/java/chess/domain/board/score/ColumnPiece.java b/src/main/java/chess/domain/board/score/ColumnPiece.java
@@ -33,7 +33,7 @@ public class ColumnPiece {
     private final List<Piece> pieces;
 
     public ColumnPiece(final List<Piece> pieces) {
-        this.pieces = pieces;
+        this.pieces = List.copyOf(pieces);
     }