Trunk. Don't know how to reproduce.
Created attachment 15242 [details]
Fixed. There's a tweak in sendCaretToLine() that tries to ensure a few lines below the line
requested are visible, which didn't check to make sure there *are* lines there to make
Checking in src/org/netbeans/core/output2/ui/AbstractOutputPane.java;
new revision: 1.4; previous revision: 1.3
Processing log script arguments...
This issue was solved long time ago. Because nobody has reopened it neither
added comments, we are verifying/closing it now.
If you are still able to reproduce the problem, please reopen. Thanks in advance.