private void fireSelectionEvent() {
		GroupPath[] groupPaths = getSelectedGroupPaths();
		plugin.firePluginEvent(
			new TreeSelectionPluginEvent(plugin.getName(), getTreeName(), groupPaths));
	}
Fire the tree selection plugin event.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/programtree/ProgramTreePanel.java