TailerListenerTest

MyTailerListener.java

public class MyTailerListener extends TailerListenerAdapter {

	private String pre = "";

	@Override
	public void handle(String line) {

		if (pre.equals(line)) {
			System.out.println("dup : " + line);
		}
		pre = line;
	}
}

TailerTest.java

public class TailerTest {

	public static void main(String[] args) {
		TailerListener listener = new MyTailerListener();
		final File test = new File("/tmp/test.txt");
		Tailer tailer = new Tailer(test, listener);
		tailer.run();
	}
}