if(subsystems.isEmpty()) return;
final GroupItem platformGroup = new GroupItem("Platform");
platformGroup.addItem(new LHSNavTreeItem("JVM", NameTokens.VirtualMachine));
platformGroup.addItem(new LHSNavTreeItem("Environment", NameTokens.EnvironmentPresenter));
platformGroup.addItem(new LHSNavTreeItem("Log Viewer", NameTokens.LogViewer));
runtimeTree.addItem(platformGroup);
final GroupItem subsystemGroup = new GroupItem("Subsystems");