/usr/share/vim/vim80/compiler/jikes.vim is in vim-runtime 2:8.0.1453-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | " Vim Compiler File
" Compiler: Jikes
" Maintainer: Dan Sharp <dwsharp at hotmail dot com>
" Last Change: 20 Jan 2009
" URL: http://dwsharp.users.sourceforge.net/vim/compiler
if exists("current_compiler")
finish
endif
let current_compiler = "jikes"
if exists(":CompilerSet") != 2 " older Vim always used :setlocal
command -nargs=* CompilerSet setlocal <args>
endif
" Jikes defaults to printing output on stderr
CompilerSet makeprg=jikes\ -Xstdout\ +E\ \"%\"
CompilerSet errorformat=%f:%l:%v:%*\\d:%*\\d:%*\\s%m
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