I just created a folder according to SSHFS (Ubuntu Docs)
sudo apt-get install sshfs
sudo gpasswd -a jm fuse
sshfs -o idmap=user jm@example.com:/path/to/folder folder
Then I found that the folder is mounted, but I cannot write to it. The permissions seems fine
But I even tried with
chmod -R 777 ./folder
Still no go
UPDATE: It seems I can't write using NetBeans only. But it works with LeafPad for example
Best Answer
Your update indicates that only certain applications are having trouble writing to the sshfs mount. You might have to enable one or more of the "workarounds" listed in the sshfs man page. I would start with the "truncate" and "rename" workarounds: