Collectives™ on Stack Overflow
Find centralized, trusted content and collaborate around the technologies you use most.
Learn more about Collectives
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
Learn more about Teams
Recently I use JMockit and Junit4 for unit tests in intellj idea. When I run my test using the 'Run' button or the 'debug' button, it works fine. When I try to get my code coverage result using the 'Run with coverage' button, it gets ClassFormatError.
java.lang.ClassFormatError at
sun.instrument.InstrumentationImpl.redefineClasses0(Native Method)
It happens only when I try to mock a method in the class which I want to test, like
new Expectations(BaseValidator.class) {
BaseValidator.isExistAirLineByTwoCode(anyString);
returns(false, true);
I test another method in class 'BaseValidator' which calls the method 'isExistAirLineByTwoCode'.
I don't know if the cause of this problem is from idea or jmokit, even junit. By the way, I use jacoco for code coverage reports.
How can I fix this problem?
I found a workaround by switching to jacoco runner:
In the menu, click Run --> Edit Configuration --> choose your test under JUNIT category
change coverage runner to Jacoco .
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
