1). For BW 5, add the following line resembling "F:\tibco\bw\5.12\lib\log4j.properties" to the file.
log4j.logger.org.apache.commons.httpclient.util.IdleConnectionHandler=WARN, tibco_bw_log
Or add the following line resembling "E:\tibco513\bw\5.13\lib\log4j.xml" to the file.
<logger name="org.apache.commons.httpclient.util.IdleConnectionHandler">
<level value="WARN"/>
</logger>
2). For BW 6, make sure the following entry is in the logback file.
<logger name="org.apache.commons.httpclient.util.IdleConnectionHandler">
<level value="ERROR"/>
</logger>
Note that if you want to disable other logs, modify the lines resembling the following in file "F:\tibco\bw\5.12\lib\log4j.properties" to disable the detail log. Change the log level from DEBUG/INFO to WARN/ERROR.
log4j.logger.org.apache.commons.httpclient=DEBUG, tibco_bw_log
log4j.logger.httpclient.wire.header=DEBUG, tibco_bw_log