I\'m running a junit test case using the PowerMock test runner.
I\'m using the following command line to execute it:
java -cp .:jun
See here
You're probably using the wrong PowerMockRunner. There's one runner made for JUnit 4.4 and above and a second runner made for JUnit 4.0-4.3 (although the latter also works for some older minor versions of JUnit 4.4).
Try switching from the org.powermock.modules.junit4.PowerMockRunner to org.powermock.modules.junit4.legacy.PowerMockRunner or vice versa. Look at the getting started guide to see how to configure this in maven.