java - how to open pop up in new window using javafx web view -

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i trying implement popup handler in javafx webview generating popup , adding on same fxpanel want display onto new window . using following code.

 try  {   webview webview,smallview  final group group= new group();  scene scene= new scene(group);  fxpanel.setscene(scene);      webview = new webview ();  group.getchildren().add(webview);  eng= webview.getengine();    string url ="http://www.timetrim.in/webchatserver2/default.aspx";           eng.load(url);           smallview = new webview();          smallview.setprefsize(400, 200);            eng.setcreatepopuphandler(         new callback<popupfeatures, webengine>() {             @override             public webengine call(popupfeatures config) {             smallview.setfontscale(0.8);             if (!group.getchildren().contains(smallview)) {                 group.getchildren().add(smallview);             }             return smallview.getengine();              }     });       }     catch(exception ex){ex.printstacktrace();}


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