gistfile1.txt

import org.hamcrest.Matchers;

public class WtfHamcrest {

    @Test
    public void testWtfHamcrest()
    {
        Integer a = 1;
        String b = "2";
        assertThat(a, Matchers.<Object>is(not(equalTo(b))));
        assertThat(b, Matchers.<Object>is(not(equalTo(a))));

        /*

java.lang.AssertionError: 
Expected: is <not "2">
     got: <1>

        */
    }
}

Turns out that removing the is() fixes this.

Declaring both variables as Object also fixes it.