ChestLock is a simple plugin, the only purpose of which is to lock containers. Locked containers cannot be destroyed by non-owners by any means, as well as don't interact with hoppers and hopper minecarts.
• /chest lock - locks the containers - permission: chestlock.lock
• /chest unlock - unlocks the containers - permission: chestlock.unlock, chestlock.admin.unlock
• /chest share <player> - shares the containers with the specified player - permission: chestlock.share
• /chest unshare <player> - stops sharing the containers with the specified player - permission: chestlock.unshare
• /chest info - displays information about the containers - permission: chestlock.admin.info
Default permissions:
• chestlock.lock - allows to lock containers
• chestlock.unlock - allows to unlock containers
• chestlock.share- allows to share containers
• chestlock.unshare- allows to stop sharing containers

Operator permissions:
• chestlock.admin.unlock - allows to unlock any container
• chestlock.admin.info - allows to view containers' owners and shared users

Bypass permissions (off by default):
• chestlock.admin.bypass - allows to open any locked containers
If you encounter any problems, feel free to open an issue on GitHub