How do I mock a method with generic objects in JMockit?

Question

This question is self explanatory if you know how to use JMockit: How do I mock a method that has generics on it? I want to mock this method: public T save(T entity) but it always throws an exception like this:

mockit.RealMethodNotFoundForMockException: Corresponding real methods not found for the following mocks:
Object save(Object)
    at mockit.internal.RedefinitionEngine.modifyRealClass(RedefinitionEngine.java:130)
    at mockit.internal.RedefinitionEngine.modifyRealClass(RedefinitionEngine.java:88)
    at mockit.internal.RedefinitionEngine.redefineMethods(RedefinitionEngine.java:72)
    at mockit.Mockit.setUpMocks(Mockit.java:197)
    at com.mytest.MyTest.setUp(AdminManagerImplTest.java:83)

Answer 1

it does work for me, example

package a;

import junit.framework.TestCase;
import mockit.Mockit;

public class JMockitCoreExampleTest extends TestCase {

    public class MockMe {
        public T save(T t) {
            return null;
        }
    }

    public void testDoOperationAbc() {
        Mockit.redefineMethods(MockMe.class, SayThatYouMockMe.class);
                MockMe mock = new MockMe();
        System.out.println(mock.save("aaa"));
    }

    public static class SayThatYouMockMe {
        public T save(T t) {
            return t;
        }
    }
}

output

Loaded external tool: mockit.integration.junit3.JUnitTestCaseDecorator
Loaded external tool: mockit.integration.junit4.JUnit4ClassRunnerDecorator
aaa

maybe you are mocking hibernate's save method? if so try using jmockit's hibernate3emul.jar