Only for 1.12.2.
Features:

• No additional dependencies.
  
• Blocks commands on packet layer.
  
• Whitelisted command caching.
• op does not allow execute all command.

Command execution allowed only if player has permission: commandwhitelist.override.<command>

Based on CommandWhitelist idea
Version for 1.8.8: CommandWhitelist_NMS_1_8_R3

Q&A:
1:
Q:Why two resources for one plugin?
A:Two resources because some hostings only allow install plugins from trusted sources and some of them no choose ability witch version of plugin to use.
2:
Q:What differences from old Japflap CommandWhitelist?
A:No ProtocolLib dependency,valid tab complete handling.