private void refreshWorkspaceList() { LoadingPopup.showMessage(constants.LoadingWorkspaces()); repositoryService.listWorkspaces( new GenericCallback<String[]>() { public void onSuccess(String[] workspaces) { availableWorkspacesListBox.clear(); for (String workspace : workspaces) { availableWorkspacesListBox.addItem(workspace); } LoadingPopup.close(); } }); }