Preventing adicional dialog boxes when clearing stats doesn't work about javamelody HOT 4 CLOSED

First, note that the "prevent this page from showing new dialog boxes" is a 
browser specific feature (of google chrome), so javamelody does not have much 
to do with that browser feature if it does not work as you want.

But, fortunately if you want to clear all stats from a browser or from a script 
with wget or curl, you just have to call the following URL (host and context 
depends on your server):
http://host/context/monitoring?action=clear_counter&counter=all
And ignore the "OK" dialog box in the result.

By the way, if you want to get data as JSON or as XML from a script, you can 
read about JSON and XML at
https://code.google.com/p/javamelody/wiki/ExternalAPI

I'm aware of that URL to call using cURL, but when i try it the process will 
not end, and the stats are not cleared. I guessed it was because it kept 
waiting for the confirmation of the dialog box, could it be? I'll attach the 
output of the cURL command you told me, maybe it'll help and you can see 
something i didn't.
Thanks a lot!

In the debugging logs at the end of page, it is written:
Mon Mar 30 16:25:35 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:30:38 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:33:05 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:39:21 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:41:17 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:42:57 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:45:12 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:45:46 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.
Mon Mar 30 16:47:09 CEST 2015   DEBUG   Action 'CLEAR_COUNTER' executed. Result: 
Statistics null cleared.

In these messages, "null" is not good.
And it seems that when you call the URL with curl, the "&counter=all" is 
missing.
You should call http://host/context/monitoring?action=clear_counter&counter=all
and not http://host/context/monitoring?action=clear_counter

Maybe you need to write the URL between double-quotes?

You got it, the URL needed to be double-quoted, now it works really good.
Thanks for everything.