This is a pretty major update. Much of the code has been refactored to make it more readable. (Check out the source code on github). However, the big change is the implementation of SHA-256 password hashing. No longer is your OP password stored in plain text, actually, it will never be stored in plain text, because we wrote a custom 4J log filter preventing spigot from logging your password! This does mean that the only way to set your op password is through the /setOpPassword command, and before you set the password, your server will not have an OP password. So please, set the OP password. If you ever forget the password, just delete the password.txt file and the password will be reset to default (none).

Fixed a bug that caused a Null pointer exception when a player with no perms issued the command without arguments.

Thank you all for the suggestions! I have added support for /deop. It has the same password as /op, but different permissions. Make sure to update your config file, otherwise, messages may not work properly.
You can delete your config, or you can add the following line to your config.
You may also have to change some messages to use %command% otherwise it will say "JavaSE tried to use /op" when the command used was actually /deop. See the default config on the main page.

I haven't updated this plugin in a while, but I decided it was time. The plugin is now working in spigot 1.5. This includes the blocking the /minecraft p command for spigot 1.5. When block bukkit is set to true in the config, all p commands will be blocked.

It should work now

This is compiled with java 1.8, if you do not use java 1.8 on your server, please use an older build.

Change log:
Removed unsupported imports.
Added 1.11 compatibility

Thank you guys for the support you have been giving me, I really appreciate it.
There is a new config option:

(There is no need to update to this version)

You should reset your config before updating!
/*Change log
* 1.10.2
* Added option to message admins when a player uses /op
* Added configurable messages
* */
Can someone test the admin messages for /op ? I am unable to test them at the moment.

@ Elijah7823 you asked for this!

Sorry for being inactive for a while, I am hoping to get back into making more plugins.

If you were using an old version of this plugin, delete your config before updating!

I made it so that now if you are using a custom ban plugin, and you have it set in the config to ban on bad password, it will ban the player using the custom ban system.

This update fixed the warning message "ambiguous plugin name". Please tell me what you want to see in the next update!