It often happens to me that I want to clear the current output window by using the context menu, but instead of hitting the Clear
entry, I accidently hit the
I found output option in window Menu.
I had this same issue recently and none of the other fixes worked. I got it to show finally by switching to the "Services" tab, right-clicking on "Apache Tomcat or TomEE" and clicking "Restart".
Just go through "View" and select IDE Log. it will show the output.
In NetBeans 7.4, Under Window menu, click on "Reset Window". Then NetBeans will disappear and reappear. At last, after it reappears, click on "Output" under Window menu.
If you run the server in normal mode you can recover the log by restarting the main project in debug mode. It seems that NB opens a new server log when the server run mode changes.
Easy way, just write some wrong code and Run > Build it will show the error in output window.
I tried all of the above but no success, just this one worked.