When you work with a WAR project, if you deploy the application on the server and then change a jsp file, save and
build, you can instantly see the results by reloading the page in the browser. The servlet container sees that the file
has changed and recompiles it.
If you add a WAR project as a module to an EAR project and then deploy the EAR, you don't get the same functionality,
because the WAR is deployed under the /dist directory of the EAR. If you edit a jsp file of the WAR, you have to
Undeploy and Deploy the EAR to see the changes, and this is time consuming and annoying when all you want is to check
the results of minor code changes.

I found a workaround for this issue, but it would be nice to have this be done automatically by NetBeans.

Here is what I've done:
Added the following target to the EAR's build.xml ant file:

    <target name="post-dist">        
        <exec dir=".\" executable="cmd">
            <arg value="/c"/>
            <arg value="copy_jsps.bat"/>
        </exec>
    </target>

The contents of the copy_jsps.bat batch file(located in the same directory with build.xml) :

    @echo off
    echo Copying JSP Files...
    cd WAR_PROJECT_NAME\build
    xcopy web\*.jsp ..\..\dist\gfdeploy\WAR_PROJECT_NAME_war\ /s /y /i

Where 'WAR_PROJECT_NAME' is the name of my WAR project(located inside the directory of the EAR project). I guess 'gf'
in 'gfdeploy' stands for "glassfish" so this batch will work only when you deploy the EAR on glassfish - and of course
it will only run on a Windows OS :)