NullPointerException during image link matching

[konklone]

java.lang.NullPointerException
at java.util.regex.Matcher.reset(Matcher.java:253)
at java.util.regex.Matcher.(Matcher.java:125)
at java.util.regex.Pattern.matcher(Pattern.java:160)
at campyre.java.Message.imageLink(Message.java:133)
at campyre.java.Message.typeFor(Message.java:100)
at campyre.java.Message.(Message.java:56)
at campyre.java.Message.allToday(Message.java:83)
at campyre.android.RoomView.poll(RoomView.java:339)
at campyre.android.RoomView.access$2(RoomView.java:336)
at campyre.android.RoomView$PollTask$1.run(RoomView.java:505)