trunk/hudson/plugins/jabber/src/main/java/hudson/plugins/jabber/tools/MessageHelper.java

49 int firstQuote = commandLine.indexOf(QUOTE);
(...)
60 parameters
61 .add(commandLine.substring(firstQuote + 1, endQuoted));

firstQuote+1 is wrong if the quote is the last char.

java.lang.StringIndexOutOfBoundsException: String index out of range: -16
at java.lang.String.substring(String.java:1949)
at
hudson.plugins.jabber.tools.MessageHelper.extractParameters(MessageHelper.java:60)
at
hudson.plugins.jabber.tools.MessageHelper.extractCommandLine(MessageHelper.java:39)
at hudson.plugins.jabber.im.transport.bot.Bot.processPacket(Bot.java:106)
at
org.jivesoftware.smack.PacketReader$ListenerWrapper.notifyListener(PacketReader.java:822)
at org.jivesoftware.smack.PacketReader.processListeners(PacketReader.java:260)
at org.jivesoftware.smack.PacketReader.access$100(PacketReader.java:43)
at org.jivesoftware.smack.PacketReader$2.run(PacketReader.java:72)