java completer stuck at 100%, never loads

[ghost]

Issue Prelude

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• [x] I have read and understood YCM's CONTRIBUTING document.
• [x] I have read and understood YCM's CODE_OF_CONDUCT document.
• [x] I have read and understood YCM's README, especially the Frequently Asked Questions section.
• [x] I have searched YCM's issue tracker to find issues similar to the one I'm about to report and couldn't find an answer to my problem. (Example Google search.)
• [x] If filing a bug report, I have included the output of vim --version.
• [x] If filing a bug report, I have included the output of :YcmDebugInfo.
• [x] If filing a bug report, I have attached the contents of the logfiles using the :YcmToggleLogs command.
• [x] If filing a bug report, I have included which OS (including specific OS version) I am using.
• [x] If filing a bug report, I have included a minimal test case that reproduces my issue, including what I expected to happen and what actually happened.
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Issue Details

Provide a clear description of the problem, including the following key questions:

• What did you do?

Just opening vim a lot to edit java files. Also was experimenting today with UltiSnips.

• What did you expect to happen?

YouCompleteMe helps me write java (it happened at the start)

• What actually happened?

halfway through today the java completer gets stuck at

Initializing Java completer: 100% Starting Java Language Server - Resolve plugin dependency

Diagnostic data

Output of vim --version

VIM - Vi IMproved 8.1 (2018 May 18, compiled Oct 29 2018 06:55:58)
macOS version
Included patches: 1-500
Compiled by Homebrew
Huge version without GUI.  Features included (+) or not (-):
+acl               +extra_search      +mouse_netterm     +tag_old_static
+arabic            +farsi             +mouse_sgr         -tag_any_white
+autocmd           +file_in_path      -mouse_sysmouse    -tcl
+autochdir         +find_in_path      +mouse_urxvt       +termguicolors
-autoservername    +float             +mouse_xterm       +terminal
-balloon_eval      +folding           +multi_byte        +terminfo
+balloon_eval_term -footer            +multi_lang        +termresponse
-browse            +fork()            -mzscheme          +textobjects
++builtin_terms    -gettext           +netbeans_intg     +timers
+byte_offset       -hangul_input      +num64             +title
+channel           +iconv             +packages          -toolbar
+cindent           +insert_expand     +path_extra        +user_commands
-clientserver      +job               +perl              +vartabs
+clipboard         +jumplist          +persistent_undo   +vertsplit
+cmdline_compl     +keymap            +postscript        +virtualedit
+cmdline_hist      +lambda            +printer           +visual
+cmdline_info      +langmap           +profile           +visualextra
+comments          +libcall           -python            +viminfo
+conceal           +linebreak         +python3           +vreplace
+cryptv            +lispindent        +quickfix          +wildignore
+cscope            +listcmds          +reltime           +wildmenu
+cursorbind        +localmap          +rightleft         +windows
+cursorshape       -lua               +ruby              +writebackup
+dialog_con        +menu              +scrollbind        -X11
+diff              +mksession         +signs             -xfontset
+digraphs          +modify_fname      +smartindent       -xim
-dnd               +mouse             +startuptime       -xpm
-ebcdic            -mouseshape        +statusline        -xsmp
+emacs_tags        +mouse_dec         -sun_workshop      -xterm_clipboard
+eval              -mouse_gpm         +syntax            -xterm_save
+ex_extra          -mouse_jsbterm     +tag_binary        
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
  fall-back for $VIM: "/usr/local/share/vim"
Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H   -DMACOS_X -DMACOS_X_DARWIN  -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1       
Linking: clang   -L. -fstack-protector -L/usr/local/lib -L/usr/local/opt/libyaml/lib -L/usr/local/opt/openssl/lib -L/usr/local/opt/readline/lib  -L/usr/local/lib -o vim        -lncurses -liconv -framework AppKit   -mmacosx-version-min=10.14 -fstack-protector-strong -L/usr/local/lib  -L/usr/local/Cellar/perl/5.28.0/lib/perl5/5.28.0/darwin-thread-multi-2level/CORE -lperl -lm -lutil -lc  -L/usr/local/opt/python/Frameworks/Python.framework/Versions/3.7/lib/python3.7/config-3.7m-darwin -lpython3.7m -framework CoreFoundation  -lruby.2.5.3 -lobjc    

Output of YcmDebugInfo

Printing YouCompleteMe debug information...
-- Client logfile: /var/folders/06/86nmfyvd3x9g2xzgts5xsfgc0000gn/T/ycm_zq_qs8u0
.log
-- Server Python interpreter: /usr/local/opt/python@2/bin/python2.7
-- Server Python version: 2.7.15
-- Server has Clang support compiled in: False
-- Clang version: None
-- No extra configuration file found
-- Server running at: http://127.0.0.1:50278
-- Server process ID: 79400
-- Server logfiles:
--   /var/folders/06/86nmfyvd3x9g2xzgts5xsfgc0000gn/T/ycmd_50278_stdout_udus5sbv
.log
--   /var/folders/06/86nmfyvd3x9g2xzgts5xsfgc0000gn/T/ycmd_50278_stderr_eq3x02y3
.log

Contents of YCM, ycmd and completion engine logfiles

https://gist.github.com/theonlygusti/02486525d638774b768103f0a84f2e76

OS version, distribution, etc.

macOS 10.14 Mojave

Output of build/install commands

Include link to a gist containing the invocation and entire output of install.py if reporting an installation issue.

[bstaletic]

I don't think we can do anything about this - YCM never received "I'm ready" message from the jdt.ls server. I know that this isn't reproducible easily, but that's exactly what we need to even attempt to see what's going on.

[puremourning]

Where are the log files?

[puremourning]

Please include debug info when in a file that is experiencing the problem

[ghost]

@puremourning I just added the gist of log files https://gist.github.com/theonlygusti/02486525d638774b768103f0a84f2e76

[micbou]

We need a SSCCE. See also CONTRIBUTING.md.

[puremourning]

the java completer is working correctly. you can ignore the status that says 100% complete.

For anyone who cares, the jdt.ls now sends its Started message before it's "Starting 100%" message since some recent version. this confuses makes ycmd report the wrong status text, but insternally, everything works fine.

2018-11-07 09:45:02,516 - DEBUG - RX: Received message: b'{"jsonrpc":"2.0","method":"language/status","params":{"type":"Started","message":"Ready"}}'
2018-11-07 09:45:02,516 - INFO - jdt.ls initialized successfully.
2018-11-07 09:45:02,556 - INFO - Server reported: 07-Nov-2018 09:45:02 Workspace initialized in 1984ms
2018-11-07 09:45:02,580 - DEBUG - RX: Received message: b'{"jsonrpc":"2.0","method":"language/status","params":{"type":"Starting","message":"100% Starting Java Language Server - Resolve plugin dependency"}}'

I have a patch (https://github.com/Valloric/ycmd/pull/1174) which fixes this (purely cosmetic) issue. If you're having other issues with java support please raise a new issue.