javaws will hang when trying to uninstall an application which has already removed by app manager. The case is rare for common use, but at least javaws should not hang, this bug is critical for jdic.packager

To reproduce, please follow the steps below:
1. run commandline: "javaws -silent -import -codebase file://&lt;codebase> <jnlpfile>"
2. lauch javaws application manager by commandline "javaws"
3. remove the application by clicking "remove" button
4. run commandline: "javaws -silent -uninstall <jnlpfileref>"

Now the terminal will hang.