public Integer getCycleRootIndex() {
			if (cycleRootIndex == null) {
				cycleRootIndex = computeCycleRootIndex();
			}
			return cycleRootIndex < 0 ? null : cycleRootIndex;
		}
Diagnostic dialog for display information about the components in a window and related focus
information.
Ghidra/Framework/Docking/src/main/java/ghidra/docking/util/ComponentInfoDialog.java