Unable to set prefs in 3.9.3 with jdk 21.0.9

**Describe the bug**
Error pop up trying to run ipscan 3.9.3 amd64 in Debian Trixie stating needs Java or openjdk 17+

**To Reproduce**
Steps to reproduce the behavior:
1 clean install debian trixie, updated and upgraded as of 30 Nov 2025
2 sudo apt install default-jdk
3 java -version
openjdk version "21.0.9" 2025-10-21
OpenJDK Runtime Environment (build 21.0.9+10-Debian-1deb13u1)
OpenJDK 64-Bit Server VM (build 21.0.9+10-Debian-1deb13u1, mixed mode, sharing)
4 sudo dpkg -i ipscan_3.9.3_amd64.deb
5 attempt gear, or Tools, preferences get pop up window need java/openjdk 17+

**Expected behavior**
To be able to make settings adjustments, ports scanned, etc

**Screenshots**
Will add if required

**Versions (please copy from the About dialog or complete manually):**
- Version of Angry IP Scanner 3.9.3 build date 2025/11/10
- OS, version, CPU architecture Debian Trixie, XFCE4, Ryzen 5 5500U
- Java version, vendor (`java -version`) - above
- Last working version of Angry IP Scanner unknown

**Logs:**
- Please run Angry IP Scanner from Terminal and see if any relevant logs were written. Paste them here:
- Windows: `jre\bin\java -jar ipscan.exe` (inside of installation directory, e.g. C:\Program Files\Angry IP Scanner)
- Mac: `Angry\ IP\ Scanner.app/Contents/MacOS/ipscan`
- Linux: `ipscan` or `java -jar ipscan.jar`

[hs_err_pid104161.log](https://github.com/user-attachments/files/23841060/hs_err_pid104161.log)