java.io.IOException: Server returned HTTP response code: 403 for URL: http://testwww.netbeans.org/nonav/uigestures/error.html
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1241)
        at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:373)
        at javax.swing.JEditorPane.getStream(JEditorPane.java:777)
Caused: java.io.IOException: Server returned HTTP response code: 403 for URL: http://testwww.netbeans.org/nonav/uigestures/error.html
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1296)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1290)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:944)
        at javax.swing.JEditorPane.getStream(JEditorPane.java:812)
        at javax.swing.JEditorPane.setPage(JEditorPane.java:418)
[catch] at org.netbeans.modules.uihandler.Installer$SubmitInteractive.assignInternalURL(Installer.java:1289)
        at org.netbeans.modules.uihandler.Installer$Submit.doShow(Installer.java:888)
        at org.netbeans.modules.uihandler.Installer.doDisplaySummary(Installer.java:475)
        at org.netbeans.modules.uihandler.Installer.displaySummary(Installer.java:410)
        at org.netbeans.modules.uihandler.UIHandler.run(UIHandler.java:138)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)