buf = buf[8:]
		_, err := cycleInfo.UnmarshalMsg(buf)
		bugLogIf(ctx, err)
	}

	scannerTimer := time.NewTimer(scannerCycle.Load())
	defer scannerTimer.Stop()
	defer globalScannerMetrics.setCycle(nil)

	for {
		select {
		case <-ctx.Done():
			return
		case <-scannerTimer.C:
			// Reset the timer for next cycle.
			// If scanner takes longer we start at once.

        addEdge(graph2, "a", "b");
        addEdge(graph2, "b", "c");
        CycleDetectedException cde = assertThrows(CycleDetectedException.class, () -> addEdge(graph2, "c", "a"));
        List<String> cycle = cde.getCycle();
        assertNotNull(cycle, "Cycle should be not null");
        assertTrue(cycle.contains("a"), "Cycle contains 'a'");
        assertTrue(cycle.contains("b"), "Cycle contains 'b'");

        private final List<String> cycle;

        CycleDetectedException(String message, List<String> cycle) {
            super(message);
            this.cycle = cycle;
        }

        public List<String> getCycle() {
            return cycle;
        }

        @Override
        public String getMessage() {
            return super.getMessage() + " " + String.join(" --> ", cycle);
        }
    }