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    <p>You can do this with a <a href="http://junit-team.github.io/junit/javadoc/latest/org/junit/rules/TestRule.html" rel="noreferrer">TestRule</a>. This will give you the flexibility you need. A TestRule allows you to insert logic around the test, so you would implement the retry loop:</p> <pre><code>public class RetryTest { public class Retry implements TestRule { private int retryCount; public Retry(int retryCount) { this.retryCount = retryCount; } public Statement apply(Statement base, Description description) { return statement(base, description); } private Statement statement(final Statement base, final Description description) { return new Statement() { @Override public void evaluate() throws Throwable { Throwable caughtThrowable = null; // implement retry logic here for (int i = 0; i &lt; retryCount; i++) { try { base.evaluate(); return; } catch (Throwable t) { caughtThrowable = t; System.err.println(description.getDisplayName() + ": run " + (i+1) + " failed"); } } System.err.println(description.getDisplayName() + ": giving up after " + retryCount + " failures"); throw caughtThrowable; } }; } } @Rule public Retry retry = new Retry(3); @Test public void test1() { } @Test public void test2() { Object o = null; o.equals("foo"); } } </code></pre> <p>The heart of a <code>TestRule</code> is the <code>base.evaluate()</code>, which calls your test method. So around this call you put a retry loop. If an exception is thrown in your test method (an assertion failure is actually an <code>AssertionError</code>), then the test has failed, and you'll retry.</p> <p>There is one other thing that may be of use. You may only want to apply this retry logic to a set of tests, in which case you can add into the Retry class above a test for a particular annotation on the method. <code>Description</code> contains a list of annotations for the method. For more information about this, see my answer to <a href="https://stackoverflow.com/questions/8233883/how-to-run-some-code-before-each-junit-test-method-individually-without-using/8234076#8234076">How to run some code before each JUnit @Test method individually, without using @RunWith nor AOP?</a>.</p> <h2>Using a custom TestRunner</h2> <p>This is the suggestion of CKuck, you can define your own Runner. You need to extend <a href="http://junit.sourceforge.net/javadoc/org/junit/runners/BlockJUnit4ClassRunner.html" rel="noreferrer">BlockJUnit4ClassRunner</a> and override runChild(). For more information see my answer to <a href="https://stackoverflow.com/questions/7639353/how-to-define-junit-method-rule-in-a-suite/7653558#7653558">How to define JUnit method rule in a suite?</a>. This answer details how to define how to run code for every method in a Suite, for which you have to define your own Runner.</p>
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    1. POHow to Re-run failed JUnit tests immediately?
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    1. USMatthew Farwell
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    1. POHow to Re-run failed JUnit tests immediately?
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    1. COThanks: BTW for every one how will try this, TestRule is a feature that exists since JUnit version 4.9
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    2. CO@Ralph Actually, TestRule is a replacement for MethodRule, which was introduced earlier, about 4.7 IIRC, so this solution can potentially apply before 4.9, but would be slightly different.
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      1. USMatthew Farwell
    3. COThis was really helpful, but something that jumped my mind: retryCount and retries might be misleading names. When retry is 1, I would assume, that he runs the test, and if it fails, retries it once, but thats not the case. The variable should probably be called maxTries.
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      1. USThomas M.
 

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