From c412bc6c6096a188b3bfa029089fc75da1159dbc Mon Sep 17 00:00:00 2001
From: Quentin Le Sceller <q.lesceller@gmail.com>
Date: Thu, 14 Jun 2018 13:37:21 -0400
Subject: [PATCH] Fix empty candidate txs (#1168)

---
 pool/src/pool.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pool/src/pool.rs b/pool/src/pool.rs
index 277607e7e..a62b26791 100644
--- a/pool/src/pool.rs
+++ b/pool/src/pool.rs
@@ -102,7 +102,10 @@ where
 			.filter(|x| x.state == from_state)
 			.collect::<Vec<_>>();
 
-		let candidate_txs = entries.iter().map(|x| x.tx.clone()).collect();
+		let candidate_txs: Vec<Transaction> = entries.iter().map(|x| x.tx.clone()).collect();
+		if candidate_txs.is_empty() {
+			return Ok(vec![]);
+		}
 		let valid_txs = self.blockchain.validate_raw_txs(candidate_txs, extra_tx)?;
 
 		// Update state on all entries included in final vec of valid txs.