diff --git a/build.gradle b/build.gradle
index 32a5b8d8..f1617d11 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ spotless {
         // 모든 Java 소스 파일에 포맷팅 규칙 적용
         target("**/*.java")
         // google 자바 포맷 적용
-        googleJavaFormat()
+
         // 불필요한 임포트 제거
         removeUnusedImports()
         // 마지막줄 New Line 처리
diff --git a/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/ApplicantAccountTest.java b/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/ApplicantAccountTest.java
index 67abb45e..7c633d5e 100644
--- a/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/ApplicantAccountTest.java
+++ b/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/ApplicantAccountTest.java
@@ -1,12 +1,13 @@
 package com.inhabas.api.domain.budget.valueObject;
 
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
 import com.inhabas.api.domain.budget.domain.valueObject.ApplicantAccount;
+
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
 public class ApplicantAccountTest {
 
     @DisplayName("Account 타입에 문자열을 저장한다.")
@@ -29,21 +30,24 @@ public void tooLongApplicantAccountTest() {
         String accountString = "지금이문장은10자임".repeat(10);
 
         //then
-        assertThrows(IllegalArgumentException.class,
-                () -> new ApplicantAccount(accountString));
+        assertThatThrownBy(() -> new ApplicantAccount(accountString))
+               .isInstanceOf(IllegalArgumentException.class)
+               .hasMessage(null);
     }
 
     @DisplayName("계좌정보는 null 일 수 없습니다.")
     @Test
     public void applicantAccountCannotBeNull() {
-        assertThrows(IllegalArgumentException.class,
-                () -> new ApplicantAccount(null));
+        assertThatThrownBy(() -> new ApplicantAccount(null))
+               .isInstanceOf(IllegalArgumentException.class)
+               .hasMessage(null);
     }
 
     @DisplayName("계좌정보는 빈 문자열일 수 없습니다.")
     @Test
     public void applicantAccountCannotBeNullBlank() {
-        assertThrows(IllegalArgumentException.class,
-                () -> new ApplicantAccount("\t"));
+        assertThatThrownBy(() -> new ApplicantAccount("\t"))
+               .isInstanceOf(IllegalArgumentException.class)
+               .hasMessage(null);
     }
 }
diff --git a/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/DetailTest.java b/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/DetailTest.java
index 73d0b303..f451b2bf 100644
--- a/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/DetailTest.java
+++ b/resource-server/src/test/java/com/inhabas/api/domain/budget/valueObject/DetailTest.java
@@ -1,11 +1,12 @@
 package com.inhabas.api.domain.budget.valueObject;
 
 import com.inhabas.api.domain.budget.domain.valueObject.Details;
+import com.inhabas.api.domain.budget.domain.valueObject.RejectReason;
+import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class DetailTest {
 
@@ -29,21 +30,26 @@ public void tooLongDetailsTest() {
         String detailsString = "지금이문장은10자임".repeat(30);
 
         //then
-        assertThrows(IllegalArgumentException.class,
-                () -> new Details(detailsString));
+        Assertions.assertThatThrownBy(() -> new Details(detailsString))
+               .isInstanceOf(IllegalArgumentException.class)
+               .hasMessage(null);
     }
 
     @DisplayName("예산 내역 제목은 null 일 수 없습니다.")
     @Test
     public void detailsCannotBeNullTest() {
-        assertThrows(IllegalArgumentException.class,
-                () -> new Details(null));
+
+        Assertions.assertThatThrownBy(() -> new Details(null))
+               .isInstanceOf(IllegalArgumentException.class)
+               .hasMessage(null);
     }
 
     @DisplayName("예산 상세내역 은 빈 문자열일 수 없습니다.")
     @Test
     public void detailsCannotBeBlankTest() {
-        assertThrows(IllegalArgumentException.class,
-                () -> new Details("\t"));
+
+        Assertions.assertThatThrownBy(() -> new Details("\t"))
+               .isInstanceOf(IllegalArgumentException.class)
+               .hasMessage(null);
     }
 }