For example type to internal browser adress field following:

http://localhost:80888880/somethink

Following exception should be throwed:

java.lang.IllegalArgumentException: port out range:80888880
        at java.net.Socket.<init>(Socket.java:253)
        at java.net.Socket.<init>(Socket.java:100)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:50)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:331)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:517)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:267)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:277)
        at sun.net.www.http.HttpClient.New(HttpClient.java:289)
        at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection
.java:379)
        at ice.iblite.BrowserURLLoader.connect(ice/iblite/BrowserURLLoader)
        at ice.iblite.BrowserURLLoader.getInputStream(ice/iblite/BrowserURLLoade
r)

        at ice.iblite.BrowserURLLoader.getContentType(ice/iblite/BrowserURLLoade
r)
        at ice.iblite.ProcessURL.run(ice/iblite/ProcessURL)
        at java.lang.Thread.run(Thread.java:484)

[Hanz] We can not catch this Exception...