I Installed SoapUI and it kept on freezing for all requests. Obviously I googled it and found a lot of possible solutions. Here is the solution that worked for me and helped me resolve the SoapUI GUI freeze
1. Navigate to the installation directory. It must be something similar to:
C:Program Files (x86)SmartBearSoapUI-5.5.0bin
2. Open the .vmoptions file in notepad and add below line:
-Dsoapui.jxbrowser.disable=true
3. Save the file and restart SOAPUI.
This solution might or might not work for all.
Do let me know if it worked or not for you. And also share what worked for you, i would be happy to update the post with other solutions that worked!
Happy API Testing!