crash on subscribeTopic

[hmeerlo]

I don't understand why, but the client crashes on the first subscribeTopic. It does a fetch request with partition 0 and offset 0, but somehow the server regards the offset as invalid:

[2013-04-05 10:12:24,307] ERROR error when processing request FetchRequest(topic:200, part:0 offset:0 maxSize:1048576) (kafka.server.KafkaRequestHandlers)
kafka.common.OffsetOutOfRangeException: offset 0 is out of range
at kafka.log.Log$.findRange(Log.scala:46)
at kafka.log.Log.read(Log.scala:264)
at kafka.server.KafkaRequestHandlers.kafka$server$KafkaRequestHandlers$$readMessageSet(KafkaRequestHandlers.scala:112)
at kafka.server.KafkaRequestHandlers.handleFetchRequest(KafkaRequestHandlers.scala:92)
at kafka.server.KafkaRequestHandlers$$anonfun$handlerFor$2.apply(KafkaRequestHandlers.scala:39)
at kafka.server.KafkaRequestHandlers$$anonfun$handlerFor$2.apply(KafkaRequestHandlers.scala:39)
at kafka.network.Processor.handle(SocketServer.scala:296)
at kafka.network.Processor.read(SocketServer.scala:319)
at kafka.network.Processor.run(SocketServer.scala:214)
at java.lang.Thread.run(Thread.java:662)

Any idea what I'm doing wrong?