Run a method if the test fails on Junit

You can use TestWatcherthis hook with failure and success results. You can add your hook logic

import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestWatcher;
import org.junit.runner.Description;

public class Test1 {

    @Rule
    public TestWatcher watchman = new TestWatcher() {
        @Override
        protected void failed(Throwable e, Description description) {
            System.out.println("failed");
        }
    };

    @Test
    public void test() {
        Assert.assertEquals(2, 4);
    }

}