How to Rerun Failed Tests in JUnit?

Sometimes due to some temporarily problems such as connection problems, server problems, browser issues, mobile application crashes and freezes and so on our tests fail. In these kinds of situations, we may want to rerun our tests automatically. But how? We can handle this with test frameworks such as TestNG and JUnit. In this post, I want to show you how to solve this problem with JUnit. Also, you can do the same operation with TestNG. It is a great test framework and actually more QA friendly. In another post, I will also explain how to do the same operation with TestNG using several ways. Especially, you can handle many situations with TestNG Listeners and this is another post topic.

In my Junit Rules post, I described how to write Custom Rules and I showed a sample custom ScreenShot Rule implementation.  In this post, we will create a similar custom Rule class which implements TestRule class.  We need to override evaluate() method and write retry logic in it.

Let’s do an example and see how it works?

We need two classes, one of them is our Rule Class ->> RetryRule and the other is our Test Class ->> RetryRuleTest.

In RetryRuleTest class, I will open and get its title and check it with WRONG expected title. Thus, our test will fail and I will expect that our test rerun according to given retry count argument. I set retry count as 3 in our example.

RetryRule Class:

RetryRuleTest Class:


junit rerun


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About the Author:

Onur Baskirt
Onur Baskirt is a senior IT professional with 10+ years of experience. He worked at Bahçesehir University, ST Microelectronics, Huawei and Ericsson as research assistant, design verification engineer and software test leader. Also, he worked as software test leader and software operations manager at Turkey's biggest technology retailer, Teknosa. Now, he is working as Head of Software Testing and Manager of two Development Teams at His current research areas are technical software testing, programming, and computer science. Formerly, he has several research works and papers on digital chip design & verification. His hobbies are sport, dancing, traveling, and nutrition. You can find detailed information about him on his linked-in page.


  1. NeVraX April 11, 2017 at 10:50 pm - Reply

    Thank you very much for this instructive explanation.
    If I may, you’re confusing trying and retrying : a retryCount of 3 means 4 counts in total.

    • Onur Baskirt
      Onur Baskirt April 12, 2017 at 10:51 pm - Reply

      Hi, it tries 3 times and at the 4th time it never tries and directly print a message and throw an exception.

  2. Cassius August 30, 2017 at 9:42 pm - Reply

    Will the retry also reapply other rules to the retried tests, if there are any? So if we have some FirstRule applied to the test, and RetryRule reruns the test, would FirstRule be reapplied during the rerun?

    • Onur Baskirt
      Onur Baskirt September 5, 2017 at 3:40 pm - Reply

      I have not tried that but I think it should be like that. If you try, please let me know the results.

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