profiles

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.METHOD})
@Profile("dev")
public @interface DevProfile {}

@Bean
@DevProfile
public DatabaseDatasource getH2Datasource() {
        return (() -> Arrays.asList("KasiaTest", "BartekTest", "AniaTest", "KrzysztofTest"));
    }

    @Bean
    @ProdProfile
    public DatabaseDatasource | getMysqlDatasource() {
        return new DatabaseDatasource() {
        //read lines
    }
 }

<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin
</artifactId>
<version>1.6.0</version>
<configuration>
<mainClass></mainClass>
</configuration>
</plugin>