Hello,
so I downloaded xmlbeans-3.1.0.jar and moved it into lib folder. Same error. Deleted 3.1.1.jar, same error. Renamed xmlbeans-3.1.0.jar, same error.
Since I have no time for this I will uninstall SoapUI again. Perhaps I'm missing something at this point but original post is from 07-22-2020. Enough time for developers to fix a messed up lib I guess.
It is sufficient to delete lib/xmlbeans-xmlpublic-2.6.0.jar which also carries XmlOptionsBean class.
There is no need to replace/delete xmlbeans-3.1.1-sb-fixed.jar
