Buggy JTabbed Pane, Scroll? Constraints?

Question

I don't know if this is a bug, limitation, or if I'm not implementing it properly, but I am having a problem with scroll panes in a tabbed frame.
Here's the scoop.
I have a JFrame which has a has a JTabbedPane north and a JPanel (which contains a couple components) down south.
The tabbed pane has 4 tabs/panes. Only the first two are relevant right now because I haven't made it to the last two.
Tab 1 has a JPanel with a gridlayout (2 cols, 3 rows). The components display fine until I populate tab 2 with my 25 rows of stats. Once that happens, the JFrame (the container/content pane, not the physical window) size stretches itself to about 600px tall.
Tab 2 contains a JPanel with a gridlayout (2 cols, 25 rows). As described above, this many rows causes every pane in the tabbed pane set to take on this size, causing undesirable spacing. Not only that, you have to resize the window to display it all.
My solution was to use a JScrollPane to contain the JPanel with all the rows, and then add the JScrollPane to the tab. This just doesn't work. The result was just a border around the JPanel, no scroll.
Can someone give me some ideas on how to use a JScrollPane as the component in the tab 2?
Also, how do I control the size of JPanels in the the tabbed panes so they do not change based on the size of another pane?
Thanks So Much!!!
Here is my constructor code (irrelvant logic not included):
public CbStats() {
//create main frame
JFrame frame = new JFrame("VSN1 Callback Stats");
frame.setSize(400,200);
//main container
Container content = frame.getContentPane();
//tabbed pane goes north
JTabbedPane tabs = new JTabbedPane();
//flow panel goes south
JPanel southPanel = new JPanel();
southPanel.setLayout(new FlowLayout());
//add status and manual refresh
JLabel status = new JLabel("Refresh Rate: 2 mins ");
southPanel.add(status);
JButton manRefresh = new JButton("Manual Refresh");
southPanel.add(manRefresh);
//create 4 panels, 1 for each tab
JPanel panSummary = new JPanel();
JPanel panPerf = new JPanel();
JPanel panNotes = new JPanel();
JPanel panJump = new JPanel();
//add stuff to panel 1
panSummary.setLayout(new GridLayout(5,2));
panSummary.add(new JLabel(" Open Tickets:"));
panSummary.add(openTix);
panSummary.add(new JLabel(" Assigned Tickets:"));
panSummary.add(assignedTix);
panSummary.add(new JLabel(" Closed Tickets:"));
panSummary.add(closedTix);
//add stuff to panel 2
//panPerf.setLayout(new FlowLayout());
panUsers.setLayout(new GridLayout(25,4));
for(int i=0;i<ulAr.length;i++) {
ulAr[i] = new JLabel();
panUsers.add(ulAr);
panPerf.add(panUsers);
//add panels to tabs
tabs.add(panSummary, "Summary");
tabs.add(panPerf, "Performance");
tabs.add(panNotes, "Notes");
tabs.add(panJump, "Jump To...");
//add tabbed pane to main frame
content.add(tabs, BorderLayout.NORTH);
content.add(southPanel, BorderLayout.SOUTH);
//make visible
frame.setVisible(true);

Answer 1

You have to specify real panel's size.
panel.setPrefferedSize(...);
JScrollPane will ask the panel and if the size of panel is bigger than the size of scrollpane scrollbars appear.
And of course you have to specify size of scroll.
hope this helps.
Stas