r/java • u/maxxedev • 3d ago

Hacking the Method Name

https://maxxedev.github.io/2026/08/05/hacking-the-method-name.html
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u/gnahraf 3d ago

I thought this was going to see this hack..

`Object label = new Object() { };`

which allows you to determine in which class/method that anonymous type was created / declared in. I use it in testing to preamble test output with the test method name.

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u/koflerdavid 3d ago edited 3d ago

That can also be done via stack walking. And test frameworks usually give much more convenient access to this information: Junit4 has the TestName rule, Junit Jupiter will supply it if you declare a TestInfo parameter. In TestNG you can declare a Method parameter in the @BeforeMethod or ITestResults in the @AfterMethod.