code: public static void clearCaches()
      {
          synchronized (AbstractCache.CACHES) {
              for (final AbstractCache<?> cache : AbstractCache.CACHES) {
                  cache.getCache4Id().clear();
                  cache.getCache4Name().clear();
                  cache.getCache4UUID().clear();
              }
          }
      }
docs: The static method removes all values in all caches.