Prevent missing length from throwing an NPE.

diff --git a/src/main/java/net/pterodactylus/irc/Connection.java b/src/main/java/net/pterodactylus/irc/Connection.java
index b67b8db..b1ca64a 100644 (file)
--- a/src/main/java/net/pterodactylus/irc/Connection.java
+++ b/src/main/java/net/pterodactylus/irc/Connection.java
@@ -553,7 +553,7 @@ public class Connection extends AbstractExecutionThreadService implements Servic
                                }
                        } else if (messageWords[1].equalsIgnoreCase("ACCEPT")) {
                                Optional<Integer> port = Optional.fromNullable(Ints.tryParse(messageWords[3]));
-                               long position = Optional.fromNullable(Longs.tryParse(messageWords[4])).or(-1L);
+                               long position = (messageWords.length > 4) ? Optional.fromNullable(Longs.tryParse(messageWords[4])).or(-1L) : -1;
                                if (port.isPresent()) {
                                        eventBus.post(new DccAcceptReceived(this, client, messageWords[2], port.get(), position));
                                } else {