Hot Deploy, FastSwap or interative development can be enabled easily on your WebCenter project in JDeveloper.
You should see the screen below. Just click on “Enable Iteractive Development” if it is not already checked, and click OK.
This will enable the hot deploy of changes to JSPX, CSS etc. saving you the time to redeploy and restart the server. There is a performance hit, but for development purposes this is perfect because the performance hit is negligable during development and prevent the time wasted from server restarts.