common/config/build.gradle.kts

@@ -0,0 +1,11 @@
+plugins {
+    id("org.springframework.boot")
+    kotlin("plugin.spring")
+}
+
+dependencies {
+    implementation("org.springframework.boot:spring-boot-starter-web")
+    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
+
+    testImplementation("io.kotest:kotest-runner-junit5:5.9.1")
+}

common/config/src/main/kotlin/com/sangdol/common/config/JacksonConfig.kt

@@ -1,4 +1,4 @@
-package com.sangdol.roomescape.common.config
+package com.sangdol.common.config
 
 import com.fasterxml.jackson.core.JsonGenerator
 import com.fasterxml.jackson.databind.DeserializationFeature
@@ -23,6 +23,9 @@ class JacksonConfig {
     companion object {
         private val ISO_OFFSET_DATE_TIME_FORMATTER: DateTimeFormatter =
             DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssXXX")
+
+        private val LOCAL_TIME_FORMATTER: DateTimeFormatter =
+            DateTimeFormatter.ofPattern("HH:mm")
     }
 
     @Bean
@@ -43,11 +46,11 @@ class JacksonConfig {
         )
         .addSerializer(
             LocalTime::class.java,
-            LocalTimeSerializer(DateTimeFormatter.ofPattern("HH:mm"))
+            LocalTimeSerializer(LOCAL_TIME_FORMATTER)
         )
         .addDeserializer(
             LocalTime::class.java,
-            LocalTimeDeserializer(DateTimeFormatter.ofPattern("HH:mm"))
+            LocalTimeDeserializer(LOCAL_TIME_FORMATTER)
         ) as JavaTimeModule
 
     private fun dateTimeModule(): SimpleModule {

common/config/src/test/kotlin/com/sangdol/common/config/JacksonConfigTest.kt

@@ -1,4 +1,4 @@
-package com.sangdol.roomescape.common.config
+package com.sangdol.common.config
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.databind.exc.InvalidFormatException
@@ -6,11 +6,15 @@ import io.kotest.assertions.throwables.shouldThrow
 import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.shouldBe
 import io.kotest.matchers.string.shouldContain
-import java.time.*
+import java.time.LocalDate
+import java.time.LocalDateTime
+import java.time.LocalTime
+import java.time.OffsetDateTime
+import java.time.ZoneOffset
 
-class JacksonConfigTest(
-    private val objectMapper: ObjectMapper = JacksonConfig().objectMapper()
-) : FunSpec({
+class JacksonConfigTest : FunSpec({
+
+    val objectMapper: ObjectMapper = JacksonConfig().objectMapper()
 
     context("날짜는 yyyy-mm-dd 형식이다.") {
         val date = "2025-07-14"

service/build.gradle.kts

@@ -35,7 +35,6 @@ dependencies {
 
     // Kotlin
     implementation("org.jetbrains.kotlin:kotlin-reflect")
-    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
     implementation("io.github.oshai:kotlin-logging-jvm:7.0.3")
 
     // Test
@@ -53,6 +52,9 @@ dependencies {
 
     // etc
     implementation("org.apache.poi:poi-ooxml:5.2.3")
+
+    // submodules
+    implementation(project(":common:config"))
 }
 
 tasks.jar {

service/src/main/kotlin/com/sangdol/roomescape/RoomescapeApplication.kt

@@ -4,7 +4,9 @@ import org.springframework.boot.Banner
 import org.springframework.boot.SpringApplication
 import org.springframework.boot.autoconfigure.SpringBootApplication
 
-@SpringBootApplication
+@SpringBootApplication(
+    scanBasePackages = ["com.sangdol.roomescape", "com.sangdol.common"]
+)
 class RoomescapeApplication
 
 fun main(args: Array<String>) {

service/src/main/kotlin/com/sangdol/roomescape/common/log/RoomescapeLogMaskingConverter.kt

@@ -7,7 +7,7 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.databind.node.ArrayNode
 import com.fasterxml.jackson.databind.node.ObjectNode
 import com.fasterxml.jackson.databind.node.TextNode
-import com.sangdol.roomescape.common.config.JacksonConfig
+import com.sangdol.common.config.JacksonConfig
 
 private const val MASK: String = "****"
 private val SENSITIVE_KEYS = setOf("password", "accessToken", "phone")

service/src/test/kotlin/com/sangdol/roomescape/common/log/ApiLogMessageConverterTest.kt

@@ -1,17 +1,17 @@
 package com.sangdol.roomescape.common.log
 
-import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.sangdol.common.config.JacksonConfig
+import com.sangdol.roomescape.auth.exception.AuthErrorCode
+import com.sangdol.roomescape.auth.exception.AuthException
 import io.kotest.core.spec.style.StringSpec
 import io.kotest.matchers.shouldBe
 import io.mockk.every
 import io.mockk.mockk
 import jakarta.servlet.http.HttpServletRequest
 import org.slf4j.MDC
-import com.sangdol.roomescape.auth.exception.AuthErrorCode
-import com.sangdol.roomescape.auth.exception.AuthException
 
 class ApiLogMessageConverterTest : StringSpec({
-    val converter = ApiLogMessageConverter(jacksonObjectMapper())
+    val converter = ApiLogMessageConverter(JacksonConfig().objectMapper())
     val request: HttpServletRequest = mockk()
 
     beforeTest {

service/src/test/kotlin/com/sangdol/roomescape/supports/RestAssuredUtils.kt

@@ -1,6 +1,7 @@
 package com.sangdol.roomescape.supports
 
-import com.fasterxml.jackson.module.kotlin.convertValue
+import com.sangdol.common.config.JacksonConfig
+import com.sangdol.roomescape.common.exception.ErrorCode
 import io.restassured.module.kotlin.extensions.Given
 import io.restassured.module.kotlin.extensions.Then
 import io.restassured.module.kotlin.extensions.When
@@ -10,8 +11,6 @@ import io.restassured.specification.RequestSpecification
 import org.hamcrest.CoreMatchers.equalTo
 import org.springframework.http.HttpMethod
 import org.springframework.http.MediaType
-import com.sangdol.roomescape.common.config.JacksonConfig
-import com.sangdol.roomescape.common.exception.ErrorCode
 
 fun runTest(
     token: String? = null,
@@ -103,10 +102,10 @@ object ResponseParser {
     val objectMapper = JacksonConfig().objectMapper()
 
     inline fun <reified T> parseListResponse(response: List<LinkedHashMap<String, Any>>): List<T> {
-        return response.map { objectMapper.convertValue<T>(it) }
+        return response.map { objectMapper.convertValue(it, T::class.java) }
     }
 
     inline fun <reified T> parseSingleResponse(response: LinkedHashMap<String, Any>): T {
-        return objectMapper.convertValue<T>(response)
+        return objectMapper.convertValue(response, T::class.java)
     }
 }