JSP not reflecting changes - Apache Tomcat

This problem can be solved by editing file Tomcat-installation directory/conf/web.xml
Add following lines to JSP Servlet definition

<init-param>
  <param-name>development</param-name>
 <param-value>true</param-value>
 </init-param>
 <init-param>
 <param-name>modificationTestInterval</param-name>
 <param-value>0</param-value>
</init-param>

So your JSP def. should look like following:

<servlet>
 <servlet-name>jsp</servlet-name>
 <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
 <init-param>
  <param-name>fork</param-name>
  <param-value>false</param-value>
 </init-param>
 <init-param>
  <param-name>xpoweredBy</param-name>
  <param-value>false</param-value>
 </init-param>
 <init-param>
  <param-name>development</param-name>
  <param-value>true</param-value>
 </init-param>
 <init-param>
  <param-name>modificationTestInterval</param-name>
  <param-value>0</param-value>
 </init-param>
 <load-on-startup>3</load-on-startup>
</servlet>

Now delete server in eclipse and recreate it.