BrowserSim/CordovaSim Preferences should look very close to Java Application Launcher JRE configuration in Run Configuration Dialog:

Now it looks like:

What should be changed:
1. Group label should be "JRE to run BrowserSim/CordovaSim"
2. First radio button should use lable "Workspace Default JRE (jre-name-from-installed)
3. Second radio should be labeled as "Alternate JRE:"
4. Combo box with available JRE's should be placed right after "Alternate JRE:' label
5. Description text "See 'Installed JREs' for JRE definitions" should be replaced with ''General settings for BrowserSim/CordovaSim."
6. Add 'Installed JREs...' after combo box