From 9d4c98c466dfd870832da6b66a5e2d0e50f3a05d Mon Sep 17 00:00:00 2001
From: Louis Royer <louis.royer@univ-tlse3.fr>
Date: Thu, 2 Apr 2020 02:29:17 +0200
Subject: [PATCH] Fix crash when no server connected to tracker yet

---
 src/clientP2P/ClientManagement.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/clientP2P/ClientManagement.java b/src/clientP2P/ClientManagement.java
index 637ff44..f10d51d 100644
--- a/src/clientP2P/ClientManagement.java
+++ b/src/clientP2P/ClientManagement.java
@@ -182,6 +182,9 @@ public abstract class ClientManagement extends ServeErrors implements Runnable {
 	 * @throws	VersionRemoteError
 	 */
 	protected String[] listDirectory() throws EmptyDirectory, InternalError, UnknownHostException, IOException, TransmissionError, ProtocolError, VersionError, SizeError, InternalRemoteError, ProtocolRemoteError, VersionRemoteError {
+		if (hostList.size() == 0) {
+			return new String[0];
+		}
 		ProtocolP2PPacket<?> d = createProtocolP2PPacket(new Payload(RequestResponseCode.LIST_REQUEST));
 		try {
 			d.sendRequest(getHostItemSocket(hostList.get(0)));