How do I disable \"Scan for external changes\" in netbeans ?
In Netbeans(Windows), Go to "Tools > Options > Miscellaneous/Files ", You will find an option called "Enable auto-scanning of sources".
In case if you want to manually refresh (scan) your sources. Then right click the folder in Netbeans Projects window (or any explorere window like Favourites, Files, etc.,) you will find the option called 'Refresh Folder'.
Note : This option will be enabled only after you disabled the auto-scanning options.