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How to set @Value default from class field/member ? I have a Spring @Bean class with a @Value annotated field and I need that the default value for that field will come from a class member/field value. In my example I need the maxNumOfThreads field get its default value from the DEFAULT_MAX_NUM_OF_THREADS.

@Configuration
public class AppConfig {
   @Value("${jobs.max-num-of-threads:....??..}") // <<== howto ?
   private Integer maxNumOfThreads;
   public final Integer DEFAULT_MAX_NUM_OF_THREADS = 10;
How do I do this ?
Class field default value can be references using the spel '@' bean reference  syntax: @beanName.fieldName
e.g.: when the bean name is 'AppConfig' and the field we need to reference is
DEFAULT_MAX_NUM_OF_THREADS
use @appConfig as the bean name (class name AppConfig starts with lowercase) dot '.' the field name.
bymeans: @appConfig.DEFAULT_MAX_NUM_OF_THREADS
@Configuration
public class AppConfig {
   @Value("#{'${jobs.max-num-of-threads:}' ?: @appConfig.DEFAULT_MAX_NUM_OF_THREADS}")
   private Integer maxNumOfThreads;
   public final Integer DEFAULT_MAX_NUM_OF_THREADS = 10;
   @PostConstruct
   public void init(){
       System.out.println("@PostConstruct init() - in.");
by yl.
        
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