SEC-2321: Improve Java Config defaults for JavaScript clients

samples/messages-jc/src/main/java/org/springframework/security/samples/config/DataConfiguration.java

@@ -4,9 +4,12 @@ import javax.sql.DataSource;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.DependsOn;
+import org.springframework.core.io.ClassPathResource;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
 import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
 import org.springframework.orm.jpa.vendor.Database;
@@ -39,6 +42,15 @@ public class DataConfiguration {
         return factory;
     }
 
+    @Bean
+    @DependsOn("entityManagerFactory")
+    public ResourceDatabasePopulator initDatabase(DataSource dataSource) throws Exception {
+        ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
+        populator.addScript(new ClassPathResource("data.sql"));
+        populator.populate(dataSource.getConnection());
+        return populator;
+    }
+
     @Bean
     public PlatformTransactionManager transactionManager() {
         JpaTransactionManager txManager = new JpaTransactionManager();