Solution: apply the patch.
*Before apply the patch.
# telnet 192.168.146.132 898
Trying 192.168.146.132...
Connected to 192.168.146.132.
Escape character is '^]'.
TRACE / HTTP/1.1
Host: localhost
HTTP/1.0 200 OK
Date: Wed, 11 Mar 02009 04:32:55 GMT
Server: Tomcat/2.1
Content-Type: message/http
Content-Length: 35
Servlet-Engine: Tomcat/2.1 (Java 1.4.1_02a; SunOS 5.9 x86; java.vendor=Sun Microsystems Inc.)
TRACE / HTTP/1.1
Host: localhost
*After apply the patch.
# telnet 192.168.146.132 898
Trying 192.168.146.132...
Connected to 192.168.146.132.
Escape character is '^]'.
TRACE / HTTP/1.1
Host: localhost
HTTP/1.0 200 OK
Date: Wed, 11 Mar 02009 04:29:14 GMT
Server: Tomcat/2.1
Content-Type: text/plain
Servlet-Engine: Tomcat/2.1 (Java 1.4.1_02a; SunOS 5.9 x86; java.vendor=Sun Microsystems Inc.)