// Simple indetrminate progress bar without text
WebProgressBar progressBar4 = new WebProgressBar ( WebProgressBar.VERTICAL );
progressBar4.setIndeterminate ( true );
progressBar4.setStringPainted ( false );
GroupPanel view = new GroupPanel ( 4, true, progressBar1, progressBar2, /*progressBar3,*/
progressBar4 );
// Progress updater
ComponentUpdater.install ( view, "VerticalProgressBarsExample.progressUpdater", StyleConstants.animationDelay, new ActionListener ()
{