The actual result:
At step4,there is no security warning dialog pop up.
By the way,a security dialog will show up after clicking on the shortcut,refer to dialog.png.
We think that it will not have a security warning dialog after running javaws -import -silent -shortcut http://localhost:8080/Integration/jnlp/DesktopIntegration.jnlp, this is a test bug, the test instruction need to update