@Value not resolved when using @PropertySource annotation. How to configure PropertySourcesPlaceholderConfigurer?

I have following configuration class:

@Configuration
@PropertySource(name = "props", value = "classpath:/app-config.properties")
@ComponentScan("service")
public class AppConfig {

and I have service with property:

@Component 
public class SomeService {
    @Value("#{props['some.property']}") private String someProperty;

I receive error when I want to test the AppConfig configuration class with

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'someService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.lang.String service.SomeService.someProperty; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Field or property 'props' cannot be found on object of type 'org.springframework.beans.factory.config.BeanExpressionContext' 

The issue is documented in SPR-8539

but anyway I cannot figure out how to configure PropertySourcesPlaceholderConfigurer to get it work.

Edit 1

This approach works well with xml configuration

<util:properties id="props" location="classpath:/app-config.properties" />

but I want to use java for configuration.

as @cwash said;

@Configuration
@PropertySource("classpath:/test-config.properties")
public class TestConfig {

     @Value("${name}")
     public String name;


     //You need this
     @Bean
     public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
        return new PropertySourcesPlaceholderConfigurer();
     }

}

If you use @PropertySource, properties have to be retrieved with:

@Autowired
Environment env;
// ...
String subject = env.getProperty("mail.subject");

If you want to retrieve with @Value("${mail.subject}"), you have to register the prop placeholder by xml.

Reason: https://jira.springsource.org/browse/SPR-8539

I found the reason @value was not working for me is, @value requires PropertySourcesPlaceholderConfigurer instead of a PropertyPlaceholderConfigurer. I did the same changes and it worked for me, I am using spring 4.0.3 release. I configured this using below code in my configuration file.

@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
   return new PropertySourcesPlaceholderConfigurer();
}

Don't you need a method on your @Configuration class that returns PropertySourcesPlaceholderConfigurer, annotated @Bean and is static, to register any @PropertySource with Spring?

http://www.baeldung.com/2012/02/06/properties-with-spring/#java

https://jira.springsource.org/browse/SPR-8539