diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index dcf365d6..ddbdda00 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -27,10 +27,10 @@
 	},
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	"forwardPorts": [8080]
+	"forwardPorts": [8080],
 
 	// Use 'postCreateCommand' to run commands after the container is created.
-	// "postCreateCommand": "java -version",
+	"postCreateCommand": "java -version"
 
 	// Configure tool-specific properties.
 	// "customizations": {},
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 89453663..3e220c5a 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -95,6 +95,26 @@
             "projectName": "spring-boot-multiple-producers-consumers",
             "args": "",
             "envFile": "${workspaceFolder}/.env"
+        },
+        {
+            "type": "java",
+            "name": "Spring Boot-Application<spring-modulith-outbox-pattern>",
+            "request": "launch",
+            "cwd": "${workspaceFolder}",
+            "mainClass": "com.example.outboxpattern.Application",
+            "projectName": "spring-modulith-outbox-pattern",
+            "args": "--spring.profiles.active=local",
+            "envFile": "${workspaceFolder}/.env"
+        },
+        {
+            "type": "java",
+            "name": "Spring Boot-TestApplication<spring-modulith-outbox-pattern>",
+            "request": "launch",
+            "cwd": "${workspaceFolder}",
+            "mainClass": "com.example.outboxpattern.TestApplication",
+            "projectName": "spring-modulith-outbox-pattern",
+            "args": "",
+            "envFile": "${workspaceFolder}/.env"
         }
     ]
 }
\ No newline at end of file
diff --git a/kafka-sample/spring-modulith-outbox-pattern/src/main/java/com/example/outboxpattern/shipping/Shipping.java b/kafka-sample/spring-modulith-outbox-pattern/src/main/java/com/example/outboxpattern/producer/Producer.java
similarity index 62%
rename from kafka-sample/spring-modulith-outbox-pattern/src/main/java/com/example/outboxpattern/shipping/Shipping.java
rename to kafka-sample/spring-modulith-outbox-pattern/src/main/java/com/example/outboxpattern/producer/Producer.java
index 11b1d069..59824c6b 100644
--- a/kafka-sample/spring-modulith-outbox-pattern/src/main/java/com/example/outboxpattern/shipping/Shipping.java
+++ b/kafka-sample/spring-modulith-outbox-pattern/src/main/java/com/example/outboxpattern/producer/Producer.java
@@ -1,4 +1,4 @@
-package com.example.outboxpattern.shipping;
+package com.example.outboxpattern.producer;
 
 import com.example.outboxpattern.order.OrderResponse;
 import lombok.RequiredArgsConstructor;
@@ -11,14 +11,14 @@
 @Service
 @Transactional
 @RequiredArgsConstructor
-public class Shipping {
+public class Producer {
 
     @ApplicationModuleListener
-    void on(OrderResponse event) {
-        ship(event.id());
+    void onOrderResponseEvent(OrderResponse event) {
+        publish(event.id());
     }
 
-    private void ship(Long orderId) {
-        log.info("Started shipping for order {}", orderId);
+    private void publish(Long orderId) {
+        log.info("Started publishing for order {}", orderId);
     }
 }
diff --git a/kafka-sample/spring-modulith-outbox-pattern/src/test/java/com/example/outboxpattern/SchemaValidationTest.java b/kafka-sample/spring-modulith-outbox-pattern/src/test/java/com/example/outboxpattern/SchemaValidationTest.java
index cc4e587e..044ecc6d 100644
--- a/kafka-sample/spring-modulith-outbox-pattern/src/test/java/com/example/outboxpattern/SchemaValidationTest.java
+++ b/kafka-sample/spring-modulith-outbox-pattern/src/test/java/com/example/outboxpattern/SchemaValidationTest.java
@@ -1,6 +1,11 @@
 package com.example.outboxpattern;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.zaxxer.hikari.HikariDataSource;
+import javax.sql.DataSource;
 import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
 
 @DataJpaTest(
@@ -11,6 +16,11 @@
         })
 class SchemaValidationTest {
 
+    @Autowired
+    private DataSource dataSource;
+
     @Test
-    void validateJpaMappingsWithDbSchema() {}
+    void validateJpaMappingsWithDbSchema() {
+        assertThat(dataSource).isInstanceOf(HikariDataSource.class);
+    }
 }