Clover incorrectly reports failing Instinct specifications when they expect an exception

@Specification(expectedException = IllegalArgumentException.class, withMessage = "Population cannot be chunked with chunk size (-1) less than 1")
public void shouldNotAcceptNegativeChunkSize() {
    new PopulationToChunkMapperImpl(-1);
}

public void shouldNotAcceptNegativeChunkSize() {
    try {
        new PopulationToChunkMapperImpl(-1);
        throw new RuntimeException("Expected exception not thrown");
    } catch (IllegalArgumentException e) {
        // all good
    }
}

<clover-setup initstring="${coverage.db}" tmpdir="${coverage.results.dir}/tmp" flushpolicy="threaded"
        flushinterval="${coverage.flush.interval}">
    <fileset refid="main.covered.fileset"/>
    <testsources dir="${spec.src.dir}">
        <testclass>
            <testmethod annotation="Specification"/>
        </testclass>
    </testsources>
</clover-setup>