Content Assist wrong positioned on Ubuntu

[egloffmark]

Describe the bug Hi There. I am using eclipse 2022-12 (4.26.0 Build id: 20221201-1913) on Ubuntu 22.04 with Java 17 and kernel 6.1.12-060112-generic.

When I call the content assist with CTRL+ SPACE then the window of the content assist get first correctly positioned but then after ~ 1s automatically wrongly re-positioned, somewhere at a weird position, often outside of the Eclipse Main Window. I assume it has something to do when the JavaDoc get in the background loaded and after that displayed next to the content assist.

Example how it looks like after it get automatically re-positioned can be get from the screenshot below

Remark: I tried also with only one 4k monitor, with "nvidia-driver-515 / 525" and "xorg-videau-nouveau" Graphis Drivers same issue is happening

To Reproduce

1. Use Ubuntu or any Linux distro and install eclipse 2022-12 with Java 17
2. Start a Java Project with a simple Hello World Main Class
3. Type and call the Content Assist "System.out."
4. Content Assist get opened and after a one second wrongly re-positioned

Expected behavior The content Assist window should stay correctly positioned

Screenshots

Environment:

1. Select the platform(s) on which the behavior is seen:

• • [ ] All OS
• • [ ] Windows
• • [x] Linux
• • [ ] macOS

5. Additional OS info (e.g. OS version, Linux Desktop, etc) Ubuntu 22.04 with Java 17 and kernel 6.1.12-060112-generic.

6. JRE/JDK version Java 17

Version since eclipse 2022-12 (4.26.0 Build id: 20221201-1913)