Tomcat 7 SEVERE: Invalid message received with signature

[John Beaulaurier -X (jbeaulau - ADVANCED NETWORK INFORMATION INC at Cisco)]

Hello,

I did some testing with Apache reverse proxy to Tomcat a week ago or so, and am 
now out of the blue seeing a string of SEVERE messages in catalina.out. Apache 
is not running
and in fact has been uninstalled. The  proxyPort directive has been removed 
from the Tomcat server.xml connector config, and Tomcat has been rebooted.  I 
was using http
not ajp. Any input would be appreciated.

<Connector port="8100" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8445"

org.apache.coyote.ajp.AjpMessage processHeader
SEVERE: Invalid message received with signature xxxx


Tomcat 7.0.39
jdk1.6.0_45
Apache 2.2.3-43 (not currently running or installed

Thanks
-John