SOAP UI is using Open JFX for some functionality and there are multiple DLLs copied to user profile. Location of cache folder -> %OSDRIVE%\Users%username%\OpenJFX\Cache folder.
These are the files without any digital signatures:
glass.dll
glib-lite.dll
javafx_font.dll
jfxwebkit.dll
prism_d3d.dll
Digital signatures are often used by security tools to check if the files are not malicious, so adding signatures would improve security level of Open JFX.