thank you ,Ilya
there is different,
i delete the treenode ,there is a error sometime, Row key: 42A11701CD2D4E09BC1789DCA05A0243:aclSubject6 isn't available!
i hope i can hidden the message ,or meet customer questions.
can you help me, thank you
I guess there is some bug in your code. Possibly you are trying to delete a treenode twice or something like that. I think you should debug your code to find a problem.