Grails - the requested resource is not available when adding a new method to the controller interactively

I am new to Grails learning the basics. One of the first things I did was to follow the presentation at https://grails.org/learn . According to this, it should be possible to add a new method to the controller when the application is running interactively (launched by the launch target) and access that method as an action without having to restart the application.

When I tried to do this, I got a 404 error from the web server with the explanation, "The requested resource is not available." The new method works fine after restarting the application.

I use:

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.5 LTS"

$ java -version
java version "1.7.0_65"
Java(TM) SE Runtime Environment (build 1.7.0_65-b17)
Java HotSpot(TM) Client VM (build 24.65-b04, mixed mode)

$ grails -version
Grails version: 2.4.3

      

        
        
        
      

    

Actions I did:

$ grails create-app grailsapp
| Created Grails Application at /home/marci/grailsapp
$ cd grailsapp/
$ grails
| Daemon Started
grails> create-controller hello
| Compiling 10 source files

| Compiling 131 source files

| Created file grails-app/controllers/grailsapp/HelloController.groovy
| Created file grails-app/views/hello
| Created file test/unit/grailsapp/HelloControllerSpec.groovy
grails>

      

        
        
        
      

    

I have implemented index()

in grails-app/controllers/grailsapp/HelloController.groovy

:

package grailsapp

class HelloController {
    def index() {
        render "index"
    }
}

      

        
        
        
      

    

Saved file, launched the application:

grails> run-app
| Running Grails application
| Server running. Browse to http://localhost:8080/grailsapp
| Application loaded in interactive mode. Type 'stop-app' to shutdown.
| Enter a script name to run. Use TAB for completion:
grails>

      

        
        
        
      

    

Tested http://localhost:8080/grailsapp/hello/index

in browser, works great.

Now I have added another method:

package grailsapp

class HelloController {
    def index() {
        render "index"
    }
    def somemethod() {
        render "somemethod"
    }
}

      

        
        
        
      

    

The saved file. Grails seems to have noticed the source code change and recompiled the file:

| Compiling 1 source files
| Compiling 1 source files.
| Compiling 1 source files..
| Compiling 1 source files...
| Compiling 1 source files....
| Compiling 1 source files.....
grails>

      

        
        
        
      

    

Now if I try to access the new method by URL http://localhost:8080/grailsapp/hello/somemethod

from the browser, Tomcat says:

HTTP Status 404 -

type Status report

message

description The requested resource is not available.
Apache Tomcat/7.0.55

      

        
        
        
      

    

Please note that the message is empty. If I try to access a method that doesn't exist, I get the message, so another error occurs. For example http://localhost:8080/grailsapp/hello/doesnotexist

:

HTTP Status 404 - /grailsapp/hello/doesnotexist

type Status report

message /grailsapp/hello/doesnotexist

description The requested resource is not available.
Apache Tomcat/7.0.55

      

        
        
        
      

    

If I restart the app interactively and retry the action somemethod

, then it works fine.

grails> stop-app
| Server Stopped
grails> run-app
| Running Grails application
| Server running. Browse to http://localhost:8080/grailsapp
| Application loaded in interactive mode. Type 'stop-app' to shutdown.
| Enter a script name to run. Use TAB for completion:
grails>

      

        
        
        
      

    

Now http://localhost:8080/grailsapp/hello/somemethod

return the expected response.

My question is, should the new action be available without reloading as shown in the presentation? Is this a bug in the 2.4.3 Grails release? Or do I need to do something else to activate this feature?

Thanks in advance,

Marton