Problem with JPanel

[tlohan]

Hi,

I have an application in which there is a GUI that utilises the splitPane functionality. On the left side of this view there is a JTree which shows what 'Profile' has been loaded, initially this states 'No Profile'. On the right side there is a section which displays a JTable that is related to the loaded profile. Initially this JPane where the JTable is displayed is gray. Thus giving something like:

---------------------------------------------------
- No Profile |-------------------------------------
- |-------------------------------------
- |-------------------------------------
- |-------------------------------------

The following code is used to initialise this:

rightPanel.setLayout(cardLayout);
rightPanel.add("Blank", new JPanel());
for(int i = 0; i < profilePanels.length; ++i) {
rightPanel.add(profilePanels.toString(), profilePanels);
}

This works perfectly in Java1.2. However, recently I converted to Java1.3 and now find that on initialisation the JPanel does not appear. Even if I load in the JTable the Panel does not take on an ideal size. Instead it remains at the very right hand side and needs to be drag-and-dropped.

Why is this ???