MarsSeed [1] filed a deletion request for intellij-idea-ce [2]:

Disguised prebuilt binary package for this open-source application.

But Arch extra repo already offers their build of it:
https://archlinux.org/packages/?q=intellij-idea-community-edition

[1] https://aur.archlinux.org/account/MarsSeed/
[2] https://aur.archlinux.org/pkgbase/intellij-idea-ce/