Unable to use dead keys in Java apps

Status changed to 'Confirmed' because the bug affects multiple users.

It worked for me this morning with IntelliJ IDEA, Ubuntu 19.10, and the following setup:

$ echo $XMODIFIERS
@im=ibus

$ java -version
openjdk version "11.0.5" 2019-10-15
OpenJDK Runtime Environment (build 11.0.5+10-b520.30)
OpenJDK 64-Bit Server VM (build 11.0.5+10-b520.30, mixed mode)

Thanks for your report. I would suspect that this problem is upstream in nature, so it would be good if you could submit an upstream issue too:

https://github.com/ibus/ibus/issues/

If you do, please post the URL to the upstream issue here for tracking purposes.

The corresponding issue in JetBrains issue tracker: https://youtrack.jetbrains.com/issue/IDEA-59679

Opened issue in iBus repo: https://github.com/ibus/ibus/issues/2237

Even though it says fix released, Ubuntu 18.04 is still affected by this. Presumably this needs LTS backporting?

it's not marked as fixed in Ubuntu, it's just an automaking reflection of the status of https://github.com/ibus/ibus/issues/2237 upstream

Upstream didn't acknowledge it as a valid bug, so we are back at square one.

```bash
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.1 LTS
Release: 22.04
Codename: jammy
muksihs@omen-desktop:~$ set | grep -E 'XMODIFIERS|GTK_IM_MODULE|QT_IM_MODULE';setxkbmap -query
GTK_IM_MODULE=ibus
QT_IM_MODULE=ibus
XMODIFIERS=@im=ibus
rules: evdev
model: pc105
layout: us
variant: altgr-intl
options: compose:lwin,compose:rwin,grp_led:scroll,mod_led:compose
muksihs@omen-desktop:~$ cat .xsessionrc
#!/bin/bash

export CLUTTER_IM_MODULE=ibus
export GTK_IM_MODULE=ibus
export QT_IM_MODULE=ibus
export XMODIFIERS=@im=ibus

muksihs@omen-desktop:~$
```

I'm using ibus with a local m17n layout.

Layout file: https://github.com/CherokeeLanguage/m17n.d/blob/main/chr-phonetic.mim

My issue with ibus and intellij/pycharm is that the cursor is positioned before the last character typed instead of after on short sequences where a longer sequence exists.

The cursor appears to get moved back one character in the matching case.

I'm not sure the issue I'm having is exactly the same as this issue as I'm not using dead keys. See https://youtrack.jetbrains.com/issue/PY-55374/ibus-input-issue-where-cursor-position-ends-being-before-the-character-inserted