SO question on why JMockIt intervenes with getter X.getE()

package demonstrate;

import mockit.Delegate;
import mockit.Mocked;
import mockit.NonStrictExpectations;
import mockit.StrictExpectations;

import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.junit.Before;
import org.junit.Test;

public class SomeTest {
    @Mocked
    Factory factory;
    @Mocked
    Consumer consumer;

    @Before
    public void setUp() {
        new NonStrictExpectations() {{
            factory.create(anyInt, (E) any);
            result = new Delegate<Factory>() {
                @SuppressWarnings("unused")
                public X create(int i, E e) {
                    return new X(i, e);
                }
            };
        }};
    }

    @Test
    public void testWithMatcher() {
        System.err.println("-----------------------------------------");
        new StrictExpectations() {{
            consumer.consume(withArgThat(new BaseMatcher<X>() {
                final int i = 2; final E e = E.B;
                @Override
                public boolean matches(Object item) {
                    return runChecks((X) item, i, e);
                }
                @Override
                public void describeTo(Description description) {
                    description.appendText("\"i=" + i + ", e=" + e.name() + "\"");
                }
            }));
        }};
        new Service(factory, consumer).interact(2, E.B);
    }

    @Test
    public void testWithDelegate() {
        System.err.println("-----------------------------------------");
        new StrictExpectations() {{
            consumer.consume(with(new Delegate<X>() {
                @SuppressWarnings("unused")
                public boolean check(X x) {
                    return runChecks(x, 2, E.B);
                }
            }));
        }};
        new Service(factory, consumer).interact(2, E.B);
    }

    private static boolean runChecks(X actual, int i, E e) {
        System.err.println("RUNNING CHECKS ON: " + actual);
        if (actual.getI() != i) {
            System.err.println("Primitive int mismatch!");
            return false;
        }
        if (actual.e == e) {
            System.err.println("Direct reference match.");
        } else {
            System.err.println("Reference mismatch!");
            return false;
        }
        E otherE = actual.getE();
        if (otherE != e) {
            System.err.println("Reference through getter mismatch!");
            System.err.println("Ordinal through getter reference: "
                    + otherE.ordinal());
            System.err.println("Identity hashcode from getter reference: "
                    + System.identityHashCode(otherE));
            System.err.println("Identity hashcode of expected reference: "
                    + System.identityHashCode(e));
            return false;
        }
        return true;
    }

    public enum E {
        A, B
    }

    public static class X {
        private final int i;
        public final E e;

        public X(int i, E e) {
            this.i = i;
            this.e = e;
        }

        @Override
        public String toString() {
            return "i=" + i + ", e=" + e.name();
        }

        public int getI() {
            return i;
        }

        public E getE() {
            return e;
        }
    }

    public static class Factory {
        public X create(int i, E e) {
            return new X(i, e);
        }
    }

    public static class Consumer {
        public void consume(X arg) {
        }
    }

    public static class Service {
        private final Factory f;
        private final Consumer c;

        public Service(Factory f, Consumer c) {
            super();
            this.f = f;
            this.c = c;
        }

        public void interact(int i, E e) {
            X v = f.create(i, e);
            c.consume(v);
        }
    }
}