INFO [ChannelSocket] JK: ajp13 listening on /0.0.0.0:8009
INFO [JkMain] Jk running ID=0 time=0/47 config=null
ERROR [MsgAjp] BAD packet signature 18245
ERROR [ChannelSocket] Error, processing connection
java.lang.IndexOutOfBoundsException
at java.io.BufferedInputStream.read(BufferedInputStream.java:306)
at org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:601)
at org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:557)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:666)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

Can I have an explanation and a possible solution for this error.
I am using Apache httpd server+jboss4.0.3SP1(in default configuration)+mod_jk in a windows environment