for (int i = 0; i < 50000; i++) {
System.out.println("Mock no: " + i);
IMethods mock = mock(IMethods.class);
mocks.add(mock);
when(mock.simpleMethod(1)).thenReturn("one");
when(mock.simpleMethod(2)).thenReturn("two");
assertEquals("one", mock.simpleMethod(1));
assertEquals("two", mock.simpleMethod(2));