List<SequencedLog> logsContainer5 = new ArrayList<>(); ThreadSafePrinter printer1 = new ThreadSafePrinter(logsContainer1); ThreadSafePrinter printer2 = new ThreadSafePrinter(logsContainer2); ThreadSafePrinter printer3 = new ThreadSafePrinter(logsContainer3); ThreadSafePrinter printer4 = new ThreadSafePrinter(logsContainer4); ThreadSafePrinter printer5 = new ThreadSafePrinter(logsContainer5);