presto-main/src/main/java/io/prestosql/dispatcher/LocalDispatchQuery.java/LocalDispatchQuery/tryGetQueryExecution
class LocalDispatchQuery:    private Optional<QueryExecution> tryGetQueryExecution()
    {
        try {
            return tryGetFutureValue(queryExecutionFuture);
        }
        catch (Exception ignored) {
            return Optional.empty();
        }
    }