code: public SourcedValue getSourced() {
          boolean fromCache = true;
          int cacheVersion = stampedValue.getStamp();
          int latestVersion = parentContainer.getMasterVersion();
          String key = parentContainer.getKey();
          SourcedValue sourcedValue = null;
          if (cacheVersion != latestVersion) {
              SourcedValue currentValue = stampedValue.getReference();
              SourcedValue newValue = config.getSourcedValue(type, key);
  
              if (stampedValue.compareAndSet(currentValue, newValue, cacheVersion, latestVersion)) {
                  sourcedValue = newValue;
                  fromCache = false;
              }
          }
          if (fromCache) {
              sourcedValue = stampedValue.getReference();
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              if (sourcedValue != null) {
                  Tr.debug(tc, "get: Key={0}, Value={1}", key, sourcedValue);
              } else {
                  Tr.debug(tc, "get: Key={0} not found", key);
              }
          }
  
          return sourcedValue;
      }
docs: Fetch the latest version of the property. If not up to date then resolve to the latest
  value, inline.
  
  @return the latest version of the value, either from the cache or the underlying source