In case of DownloadService the download progress dialog stays there once download of rewuested resource is complete.
Try loading the following applet
http://nicole1.sfbay.sun.com:8080/plugin_tests/JNLPSupport/JAWSServices/html/JNLPDwonloadService.html
- Invoke > JCP > General Tab > View
- jawsServicesTest.jar under "Resources" should get displayed inside the table
- Click "Clear Data". Entry of jawsServicesTest.jar should get removed from the Cache Viewer
- Now Click "Get Data" , entry jawsServicesTest.jar should again be there.
If Download progress dialog stays and only getting disposed once "Cancel" is clicked then bug is reproduced.