Product Version: NetBeans IDE 6.5 RC2 (Build 200810231029)
Java: 1.6.0_10-beta; Java HotSpot(TM) Client VM 11.0-b11
System: Windows XP version 5.1 running on x86; Cp1252; en_US (nb)
-create new java application project with main class
-project properties > Sources > Includes/Excludes
-go to project properties again and clean up the Exclude textfield
->Run project -> no main classes found dialog appears
-it behaves in the same way for projects with or without Compile on Save
-the only way how to recover is to edit the Main class, restart doesn't help
Probably related to excludes, not release stopper as exclude users are not a main stream.
But the fix should be included to patch.
Integrated into 'main-golden', will be available in build *200810300201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Tomas Zezula <firstname.lastname@example.org>
Log: #151316:no main classes found
The fix was backported into release65_fixes repository.
verified in patch1