public ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException {
  try {
    // ...
  } catch (NullPointerException | InvalidCacheLoadException e) {
    throw e; // <-- Violation
  } catch (CacheLoaderException e) {
    throw new ExecutionException(e.getCause());
  } catch (Exception e) {
    throw new UncheckedExecutionException(e);
  } catch (Error e) {
    throw new ExecutionError(e);
  }
}