When calling Component#updateHosts, the applications are stopped and restarted #1269

When one wants to dynamically update the virtual hosts declared on a component, the method component#updateHosts is called.
Some times after that, it appears that the applications are stopped (then re-started when a request targets it) which can cause troubles.

Here is the description of what happens:

• when calling component#updateHosts a new set of HostRoute is created. Such object is the glue between a virtual host and an application
• when such object is garbage collected, the method finalize is called, which by default stops the HostRoute object, which at the end stops the application also.