There is still a SEVERE log though:
May 17, 2021 11:44:04 AM INFO org.pircbotx.InputParser handleLine :fdans!sid24243@gateway/web/irccloud.com/x-aafdwgspagunlghw AWAY May 17, 2021 11:38:05 AM SEVERE org.pircbotx.PircBotX startLineProcessing Exception encountered when parsing line java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64) at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70) at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248) at java.base/java.util.Objects.checkIndex(Objects.java:372) at java.base/java.util.ArrayList.get(ArrayList.java:459) at org.pircbotx.InputParser.processCommand(InputParser.java:576) at org.pircbotx.InputParser.handleLine(InputParser.java:350) at org.pircbotx.PircBotX.startLineProcessing(PircBotX.java:275) at org.pircbotx.PircBotX.connect(PircBotX.java:236) at org.pircbotx.PircBotX.startBot(PircBotX.java:151) at hudson.plugins.ircbot.v2.IRCConnection$2.run(IRCConnection.java:221
Which is from
src/main/java/org/pircbotx/InputParser.java
574 } else if (command.equals("AWAY")) 575 //IRCv3 AWAY notify 576 source.setAwayMessage(parsedLine.get(0));
Apparently when processing AWAY commands. Probably https://github.com/pircbotx/pircbotx/issues/390 Issue with string parsing in various places.
The ircbot plugin uses Pircbotx 2.0.1. The issue got addressed by https://github.com/pircbotx/pircbotx/commit/a3a81f92a39e835582e1d30f2c4b1604225b8976 which got released in 2.1.