Bug 92905 Initial use of Open Type gives no feedback for several seconds
build I20050426-1700 - switched to new build - used Ctrl+Shift+T - it appeared unresponsive for several seconds (though CPU usage went up), then the "Checking model consistency..." dialog came up and did work for a while - should bring up the dialog sooner, or show the busy cursor if this is not possible
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/dialogs/TypeSelectionDialog2.java
fContent.setLayoutData(gd);
		fContent.addSelectionListener(new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {
				handleDefaultSelected(fContent.getSelection());
			}
			public void widgetSelected(SelectionEvent e) {
				handleWidgetSelected(fContent.getSelection());
			}
		});
		return area;
	}
	
	protected void handleDefaultSelected(TypeInfo[] selection) {
		okPressed();
	}
	
	protected void handleWidgetSelected(TypeInfo[] selection) {
		IStatus status;
		if (selection.length == 0) {
	    	status= new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.ERROR, "",null); 
	    } else {
		    if (fValidator != null) {
		    	status= fValidator.validate(selection);
		    } else {
		    	status= new Status(IStatus.OK, JavaPlugin.getPluginId(), IStatus.OK, "",null); 
		    }
	    }
    	updateStatus(status);
	}