Tomcat + eclipse error handle

* Tomcat 6.0 + eclipse 3.3 (WTP)

======= Error message ==========
Servlet.service() for servlet jsp threw exception
java.lang.NoClassDefFoundError: javax/el/ELResolver
...
...

> there are no el-api.jar file in jdk 1.x ext folder

Solution
- Please copy el-api.jar file from Tomcat_Home\lib
- paste el-api.jar file to JAVA_HOME\jre\lib\ext