From 4aa9ec468fc3bba22339e52d6cd3a7477b59b858 Mon Sep 17 00:00:00 2001
From: jl777 <jameslee777@yahoo.com>
Date: Tue, 11 Sep 2018 07:13:22 -1100
Subject: [PATCH] Test

---
 src/rpcblockchain.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index aac0c0f21..a799a5efc 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -107,6 +107,11 @@ static UniValue ValuePoolDesc(
 UniValue blockheaderToJSON(const CBlockIndex* blockindex)
 {
     UniValue result(UniValue::VOBJ);
+    if ( blockindex == 0 )
+    {
+        result.push_back(Pair("error", "null blockhash"));
+        return(result);
+    }
     result.push_back(Pair("hash", blockindex->GetBlockHash().GetHex()));
     int confirmations = -1;
     // Only report confirmations if the block is on the main chain