Why are my JSP changes are not reflected without restarting Tomcat?

I am editing JSP files which are residing directly inside tomcat/webapps/myapp/WEB-INF, but to see the changes, I have to restart the server. As far as I know, JSP changes don't require you to restart the server. The only configuration I found which is related to automatic reloading is reloadable = "true"

Set to true if you want Catalina to monitor classes in /WEB-INF/classes/ and /WEB-INF/lib for changes, and automatically reload the web application if a change is detected.

I used this attribute in the context.xml, but still the problem persists. What could be the other possible reason of not detecting changes in JSP files without restarting?

@Bozho: This is the excerpt from web.xml. Do I need to change something?

 <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>
        <load-on-startup>3</load-on-startup>
    </servlet>