Bug 5677 Hierarchy outline has empty space
I opened a hierarchy view on IActionDelegate. Selected a few of the subinterfaces, changed the expansion state of the tree. Then, no matter which item I selected in the top window (the hierarchy tree), the bottom window (the outline table) always had exactly four empty rows before the first item was listed.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/ListDialogField.java
createSeparator(contents);
					}
				}
			}
						
			fLastSeparator= createSeparator(contents);	
	
			updateButtonState();
			fButtonsControl= contents;
		}
		
		return fButtonsControl;
	}
	
	private void doButtonSelected(SelectionEvent e) {
		if (fButtonControls != null) {
			for (int i= 0; i < fButtonControls.length; i++) {
				if (e.widget == fButtonControls[i]) {
					buttonPressed(i);
					return;
				}
			}
		}
	}	
	
	
	/*
	 * @see DialogField#dialogFieldChanged
	 */ 	
	public void dialogFieldChanged() {