Cronjob with Jelastic and Glassfish - bash

Question

I am running a web-application (MyCronTest) on a Glassfish-Server in a Jelastic-Environment. This web-application contains the servlet (/test), that I would like to call regularly with a cron-job.
So I followed this tutorial from the Jelastic docs, but they use Tomcat instead of Glassfish and I am not so sure about the paths and where to put which file...and now I am lost ;)
the servlet
When calling the servlet directly in my browser it prints out the following line to System.out:
test executed at 05/03/2014 15:00
the bash file to execute
I created a bash script called myCronJob.sh and put it in the directory glassfish3/temp:
#!/bin/bash
curl http://myGlassfish.jelastic.dogado.eu/MyCronTest/test;
I tested it of course, it is executable and it works (at least when I execute it on my computer).
the cron event scheduler
according to the tutorial there is a file /cron/tomcat I need to edit. Well, I found a /cron/glassfish which (I am guessing) should do the same.
# IMPORTANT NOTE!
# Please make sure there is a blank line after the last cronjob entry.
*/1 * * * * /opt/glassfish3/temp/myCronJob.sh
I added an empty line at the end, as they told me to. I even tried it with
*/1 * * * * /bin/bash /opt/glassfish3/temp/myCronJob.sh
as they suggested in the tutorial. But still no output. No error.. just empty log files.
Does anyone have an idea what I am missing here? Am I doing something wrong?
Solution / Edit
Thanks to Damien's Answer I was finally able to narrow down my problem. It was actually the line in my bash-script that caused the problem:
curl http://myGlassfish.jelastic.dogado.eu/MyCronTest/test;
should have been
curl http://localhost/MyCronTest/test;
since I was blocked by a firewall. Lucky for me, my Glassfish is running on the same machine / environment, so localhost works.
Everything else is correct.

Answer 1

Well, I found a /cron/glassfish which (I am guessing) should do the same.
Correct.
But still no output. No error.. just empty log files.
Assuming that you have correctly uploaded your file to /opt/glassfish3/temp/myCronJob.sh, I recommend that you try to direct the cron output to your own log file or email it to you:
MAILTO="your#email.com"
*/1 * * * * /opt/glassfish3/temp/myCronJob.sh 2&1 > /opt/glassfish3/glassfish/nodes/localhost-domain1/instance-168458181/logs/cronoutput.log
Note that the email may be filtered by your spam filters due to things like missing PTR (reverse DNS) and so on - but it's ok to use like this for testing/debugging purposes (just don't rely on these mails getting through for anything critical!)
If these tips don't help you, then I recommend contacting your hosting provider's support team to verify the .sh file's permissions, output when executed manually, and the cron log file contents (all of which only they can help you with).