[FIX] 日付の設定をデフォルト値を設定しました。

src/main/java/com/example/demo/app/presentation/controller/TransactionController.java

@@ -128,6 +128,10 @@ public class TransactionController {
 	@GetMapping("/transaction/create")
 	public String createOneGet(@RequestParam(defaultValue = "") LocalDate today,
 			Model model) {
+		
+		if (today == null) {
+			today = LocalDate.now();
+		}
 
 		List<CategoryForm> categoryFormList = CategoryForm.convertFrom(categoryService.findAll());
 
@@ -164,7 +168,7 @@ public class TransactionController {
 	public String updateOneGet(@RequestParam Long transactionId, @RequestParam(defaultValue = "") LocalDate today,
 			Model model) {
 
-		if (today.equals(null)) {
+		if (today == null) {
 			today = LocalDate.now();
 		}