I have a Vaadin 7 project that, on one machine, has the src/main/webapp/VAADIN/gwt-unitCache folder ( this is the machine I did the initial development on ). But on the newer machine, where I do some of my experimental development, including user MPR to convert to Flow, I do not have this folder. On the older machine, this gwt-unitCache has not been updated since July of last year. I cannot remember when I updated to Vaadin 7.7.13, but I suspect it was last year sometime. Can this folder be safely deleted? Why is it not being generated on my newer machine?
I noticed all this because, as per my stackoverflow post https://stackoverflow.com/questions/57246888/maven-same-web-application-different-war-file-size, the resulting war files were quite different in size for the same exact branch of the project. So I was a little confused. This was the only thing I could find, when I looked at the expanded war in tomcat.