Unable to run JUnit test with PowerMockRunner

Question

I have a Gradle based Java project were I now want to mock a private method using PowerMock. The problem is that I am not able to use the PowerMockRunner as I always get the

Answer 1

There may also exist dependencies on classpath that override a JUnit specific class which contains JUnit's version. This leads to incorrect version comparison results in PowerMock. For instance, I had com.google.android.tools:dx:1.7 on classpath (came from hunspell library). It overrides following method return result:

junit.runner.Version.id() => "3.8.1"

Usually it should return something like "4.12" or "4.11" etc.