[jira] [Created] (DELTASPIKE-1333) Support default methods in interface based configuration

["Niels Ull Harremoes (JIRA)" <ji...@apache.org>]

Niels Ull Harremoes created DELTASPIKE-1333:
-----------------------------------------------

             Summary: Support default methods in interface based configuration
                 Key: DELTASPIKE-1333
                 URL: https://issues.apache.org/jira/browse/DELTASPIKE-1333
             Project: DeltaSpike
          Issue Type: Improvement
          Components: Configuration
    Affects Versions: 1.8.1
         Environment: Java 8, DeltaSpike 1.8.1
            Reporter: Niels Ull Harremoes


I wanted to implement a default method in one of my configuration methods as a simple way to configure a Duration:

{code:java}
@Configuration
interface CacheConfig {
  @ConfigProperty(name = "cache.lifetime", defaultValue = "P1D")
  String cacheLifetime();

  default Duration getCacheLifetimeDuration() {
    try {
       return Duration.parse(cacheLifetime());
    } catch (DateTimeParseException e) {
        ...
  }
}
{code}

However, a runtime I get the error
{quote}java.lang.UnsupportedOperationException: public default java.time.Duration com.example.CacheConfig.getLifetimeDuration() doesn't have @ConfigProperty and therefore is illegal
{quote}

It would be nice if default methods were not processed.



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