upgrade tomcat jsp engine

Dear All,
I have following type of configuration of the tomcat 5.5.28. Recently i have downloaded it.
Servlet Engine: 2.4
JSP Engine: 1.2
Application Server: Apache Tomcat/5.5.28

Now i want to upgrade only JSP engine, rest are fine with me.
How do i do that? Not getting proper info on web about how to upgrade only JSP engine.
Thanks in advance
Regards

Tomcat 5.5 supports JSP 2.0, not 1.2. Where is this information coming from? Also see http://faq.javaranch.com/java/WhichVersionAmIRunningOn to find out this information.

(And no, it's not possible to upgrade the JSP engine independently of the rest of Tomcat.)

Thanks Dittmer,
Thanks for your help. I understood, it's not possible to upgrade the JSP engine independently of the rest of Tomcat. This question came to mind because of not having very clear concept of jsp engine and servlet engine. Also my tomcat was referring files of netbeans therefore it was showing jsp engine version as 1.2 . But i needed netbeans and tomcat both. Temporary i have removed netbeans and tomcat jsp engine is back to the 2.0 version. If i know exact location where to set classpath of the tomcat to make it refer jar files from specific path, my problem will be solved. I can see in TOMCAT_HOME/bin/catalina.sh like

CLASSPATH="$CLASSPATH""$CATALINA_HOME"/bin/bootstrap.jar

If i append new path to it as -

tomcat gives error at runtime. Can you please explain where and how to set classpath.
Thanks
Regards

you can export classpath variable in your startup script if you are using linux environment.

Thanks
Manish
http://www.javatechtips.blogspot.com

Sharmila Punde wrote:CLASSPATH="$CLASSPATH""$CATALINA_HOME"/bin/bootstrap.jar "$CATALINA_HOME"/common/lib

Classpath entries are separated by colons, not by spaces.

Thanks Dittmer and manish,
Thanks for you kind help. Do not know exact reason, but things could not work out.
Temporary i could found some way. Will look at the thing again once i finish my current work.
Thank you very much.
Regards