public void onRemoval(RemovalNotification<Integer, AtomicInteger> notification) {
            if (notification.wasEvicted()) {
              evictionCount.incrementAndGet();
              totalSum.addAndGet(notification.getValue().get());
            }
          }
        };

    CacheLoader<Integer, AtomicInteger> loader =
        new CacheLoader<Integer, AtomicInteger>() {
          @Override

            // Track encrypted bytes for key rotation - lock-free atomic operation
            bytesEncrypted.addAndGet(message.length);

            return result;
        } catch (final Exception e) {
            // Clear sensitive data on error
            if (e instanceof CIFSException) {
                throw (CIFSException) e;