void (@Nullable Configurable configurable) { Project project = myTreeView.findConfigurableProject(configurable); myBanner.setProjectText(project != null ? getProjectText(project) : null); myBanner.setText(myTreeView.getPathNames(configurable)); if (myLastController != null) { myLastController.setBanner(null); myLastController = null; } ConfigurableController controller = ConfigurableController.getOrCreate(configurable, myControllers); if (controller != null) { myLastController = controller; controller.setBanner(myBanner); } }