A tool that might come in handy for some of you that want literal full control over your plugins/server, this plugin is dangerous as it penetrates into other plugins' tasks & have the ability to cancel them, so if you don't know what you're doing, don't use this plugin as you might break the functionality of your server.
usage:
For developers:
How to bypass the non-forced commands:
you can override the 'cancel' method of your BukkitTask class & make another method named anything, & replace all usage of cancel by that method, the original code of the 'cancel' method can be found at the spigot src at the 'BukkitTask' class.