selectionSearchTxt = new Text(panel, SWT.BORDER | SWT.SEARCH | SWT.ICON_SEARCH | SWT.ICON_CANCEL);
selectionSearchTxt.setMessage("filter bundle name");
final Tree availableTree = new Tree(panel, SWT.FULL_SELECTION | SWT.MULTI | SWT.BORDER);
availableViewer = new TreeViewer(availableTree);
availableViewer.setLabelProvider(new RepositoryTreeLabelProvider(false));
availableViewer.setContentProvider(new RepositoryTreeContentProvider());
availableViewer.setAutoExpandLevel(2);
availableViewer.setFilters(new ViewerFilter[] {
alreadySelectedFilter