presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/cache/CachingHiveMetastore.java/CachingHiveMetastore/get
class CachingHiveMetastore:    private static <K, V> V get(LoadingCache<K, V> cache, K key)
    {
        try {
            return cache.getUnchecked(key);
        }
        catch (UncheckedExecutionException e) {
            throwIfInstanceOf(e.getCause(), PrestoException.class);
            throw e;
        }
    }