Normally, a component is set as a scroll panes view when you want to provide scrollable support, for example, instead of...
info.add(scrilla);
You should using something like...
scrilla.setViewportView(info);
You should then add this to the frame...
f.add(scrilla);
Before making it visible...
Also, while not entirely required, it would make sense to pack
the frame before you show it, for example...
f.pack();
f.setVisible(true);
You may also like to take a look at How to use scroll panes for more details