From c9b262046199aeb2eeb9a08fc2807b174e85726d Mon Sep 17 00:00:00 2001
From: catbref <misc-github@talk2dom.com>
Date: Sun, 17 Apr 2022 19:37:28 +0100
Subject: [PATCH] EPC-fixes: fix constructing GET_ONLINE_ACCOUNTS_V2 message
 for case where onlineAccount args is empty list

---
 .../network/message/GetOnlineAccountsV2Message.java       | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/java/org/qortal/network/message/GetOnlineAccountsV2Message.java b/src/main/java/org/qortal/network/message/GetOnlineAccountsV2Message.java
index d3df3a1b..fe6b5d72 100644
--- a/src/main/java/org/qortal/network/message/GetOnlineAccountsV2Message.java
+++ b/src/main/java/org/qortal/network/message/GetOnlineAccountsV2Message.java
@@ -29,6 +29,14 @@ public class GetOnlineAccountsV2Message extends Message {
 	public GetOnlineAccountsV2Message(List<OnlineAccountData> onlineAccounts) {
 		super(MessageType.GET_ONLINE_ACCOUNTS_V2);
 
+		// If we don't have ANY online accounts then it's an easier construction...
+		if (onlineAccounts.isEmpty()) {
+			// Always supply a number of accounts
+			this.dataBytes = Ints.toByteArray(0);
+			this.checksumBytes = Message.generateChecksum(this.dataBytes);
+			return;
+		}
+
 		// How many of each timestamp
 		Map<Long, Integer> countByTimestamp = new HashMap<>();