silent exception when admin user already exists

build.gradle

@@ -114,7 +114,7 @@ testing {
         implementation 'io.findify:s3mock_2.13:0.2.6'
         implementation 'com.icegreen:greenmail-junit5:2.1.0'
         implementation 'com.jparams:to-string-verifier:1.4.8'
-        implementation 'nl.jqno.equalsverifier:equalsverifier:3.17.1'
+        implementation 'nl.jqno.equalsverifier:equalsverifier:3.17.3'
         implementation 'org.springframework.security:spring-security-test'
         implementation 'org.springframework.boot:spring-boot-starter-test'
       }
@@ -128,7 +128,7 @@ testing {
         implementation sourceSets.test.output
 
         implementation 'org.springframework.boot:spring-boot-testcontainers'
-        implementation 'com.amazonaws:aws-java-sdk-core:1.12.765'
+        implementation 'com.amazonaws:aws-java-sdk-core:1.12.778'
         implementation 'org.testcontainers:junit-jupiter'
         implementation 'org.testcontainers:postgresql'
       }

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

src/main/java/com/developersboard/backend/bootstrap/DatabaseSeeder.java

@@ -5,23 +5,26 @@
 import com.developersboard.backend.service.user.UserService;
 import com.developersboard.constant.EnvConstants;
 import com.developersboard.enums.RoleType;
+import com.developersboard.exception.user.UserAlreadyExistsException;
 import com.developersboard.shared.util.UserUtils;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Set;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 
 /**
- * A convenient class to initializes and save user data on application start.
+ * A convenient class to initialize and save user data on application start.
  *
  * @author George Anguah
  * @version 1.0
  * @since 1.0
  */
+@Slf4j
 @Component
 @RequiredArgsConstructor
 public class DatabaseSeeder implements CommandLineRunner {
@@ -50,9 +53,13 @@ public void run(String... args) {
   }
 
   private void persistDefaultAdminUser() {
-    var adminDto = UserUtils.createUserDto(adminUsername, adminPassword, adminEmail, true);
-    Set<RoleType> adminRoleType = Collections.singleton(RoleType.ROLE_ADMIN);
+    try {
+      var adminDto = UserUtils.createUserDto(adminUsername, adminPassword, adminEmail, true);
+      Set<RoleType> adminRoleType = Collections.singleton(RoleType.ROLE_ADMIN);
 
-    userService.createUser(adminDto, adminRoleType);
+      userService.createUser(adminDto, adminRoleType);
+    } catch (UserAlreadyExistsException e) {
+      LOG.warn("Admin user already exists!");
+    }
   }
 }

src/main/resources/application-production.properties

@@ -11,7 +11,7 @@ spring.datasource.hikari.schema=spring_boot_starter
 # = JPA / HIBERNATE
 # ===============================
 # Here we only want to validate that the schema is updated and valid.
-spring.jpa.hibernate.ddl-auto=update
+spring.jpa.hibernate.ddl-auto=validate
 spring.sql.init.mode=always
 # ===============================
 # LOGGING