Bug 5449 TVT Text Expansion/Truncations in new java class dialog
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/ListDialogField.java
private Object fParentElement;
	/**
	 * Creates the <code>ListDialogField</code>.
	 * @param adapter A listener for button invocation, selection changes.
	 * @param buttonLabels The labels of all buttons: <code>null</code> is a valid array entry and
	 * marks a separator.
	 * @param lprovider The label provider to render the table entries
	 */	
	public ListDialogField(IListAdapter adapter, String[] buttonLabels, ILabelProvider lprovider) {
		super();
		fListAdapter= adapter;
		fLabelProvider= lprovider;
		fListViewerAdapter= new ListViewerAdapter();
		fParentElement= this;
		fElements= new ArrayList(10);
					
		fButtonLabels= buttonLabels;
		if (fButtonLabels != null) {
			int nButtons= fButtonLabels.length;
			fButtonsEnabled= new boolean[nButtons];
			for (int i= 0; i < nButtons; i++) {
				fButtonsEnabled[i]= true;
			}
		}	
				
		fTable= null;
		fTableControl= null;
		fButtonsControl= null;