null pointer exception while invoking servlet

["Srinivas, Rajesh" <ra...@terayon.com>]

hi ,
 i am getting the following message quite ofen when invoking servlets. i am
not able to find out the problem.

thanks
Rajesh

Using classpath:
.:/usr/TV2.1/tomcat/lib/ant.jar:/usr/TV2.1/tomcat/lib/jasper.jar:/usr/TV2.1/
tomcat/lib/servlet.jar:/usr/TV2.1/tomcat/lib/test:/usr/TV2.1/tomcat/lib/webs
erver.jar:/usr/TV2.1/tomcat/lib/xml.jar:/usr/java1.2/lib/tools.jar:/usr/TV2.
1/WEB-INF/classes:/usr/TV2.1/jndi1_2_1/jndi.jar:/usr/TV2.1/ldap1_2_2/jaas.ja
r:/usr/TV2.1/ldap1_2_2/ldap.jar:/usr/TV2.1/ldap1_2_2/providerutil.jar:/usr/T
V2.1/ldap1_2_2/ldapbp.jar:/usr/TV2.1/jmysql/mysql.jar:/usr/TV2.1/JSDK2.0/jsd
k.jar
Starting tomcat. Check logs/tomcat.log for error messages 
10 4 2
Starting tcp endpoint on 8588 with
org.apache.tomcat.service.connector.Ajp12ConnectionHandler
HANDLER THREAD PROBLEM: java.lang.NullPointerException
java.lang.NullPointerException
	at
org.apache.tomcat.service.connector.AJP12ResponseAdapter.sendStatus(Compiled
Code)
	at
org.apache.tomcat.service.http.HttpResponseAdapter.endHeaders(Compiled Code)
	at
org.apache.tomcat.core.BufferedServletOutputStream.sendHeaders(Compiled
Code)
	at
org.apache.tomcat.core.BufferedServletOutputStream.reallyFlush(Compiled
Code)
	at org.apache.tomcat.core.ResponseImpl.finish(Compiled Code)
	at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
(Ajp12ConnectionHandler.java:158)
	at org.apache.tomcat.service.TcpWorkerThread.run(Compiled Code)
	at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(Compiled
Code)
	at java.lang.Thread.run(Thread.java:485)