I'm working on a SAPUI5 test project and after I run the SAPUI5 application with Run as -> Web app preview the application starts in the integrated Eclipse browser. I can copy this url into Google Chrome and this works fine. But when I try to change the files I get a locking issue on save. The only solution is to close the web app preview, save the changes and restart the web app preview (and this generates a new port number).
I searched for this issue and I got several hits related to the integrated Eclipse Jetty server. I don't know if Web app preview also uses a Jetty server. I can't find a straightforward solution for this issue. I'm using Eclipse Kepler with SAPUI 1.6.3.
Thanks in advance for your help.