Steps to reproduce:
    1. Launch the Unsigned jnlp JavaFX Application from
        http://sqeweb.us.oracle.com/deployment2/sheldon/webCases/javafx/fxfeaturesTest/fxfeaturesTest/html/TestFXShowdocumentNeg.jnlp
    2. The application should get launched successfully and try to open the local file( using file protocol)
    3. Actually result: if the file existed, it will open the file on browser. if the file doesn't exist, it will open a new browser windows with the invalid uri.
        Expected result: A Security Exception should be thrown. No any windows or files should get opened.

Note: Applet works fine:
        http://sqeweb.us.oracle.com/deployment2/sheldon/webCases/javafx/fxfeaturesTest/fxfeaturesTest/html/TestFXShowdocumentNeg.html

Src: http://sqeweb.us.oracle.com/deployment2/sheldon/webCases/javafx/fxfeaturesTest/fxfeaturesTest/src/ShowdocumentTest.java