@Test
public void utf8FixupStrangeInputs() {

    Mockito.when(request.getQueryString()).thenReturn("&&=a&=&&a&a=a=a=a");
    HashMap<String, Object[]> params = new HashMap<String, Object[]>();
    servlet.utf8Fixup(request, params);
    Assert.assertTrue(params.containsKey(""));
}