assertEquals(24L, MemoryUtil.sizeOf(Integer.MAX_VALUE));
        assertEquals(24L, MemoryUtil.sizeOf(Long.MAX_VALUE));
        assertEquals(24L, MemoryUtil.sizeOf(Short.MAX_VALUE));
        assertEquals(24L, MemoryUtil.sizeOf(Float.MAX_VALUE));
        assertEquals(24L, MemoryUtil.sizeOf(Double.MAX_VALUE));
        assertEquals(24L, MemoryUtil.sizeOf(Byte.MAX_VALUE));
        assertEquals(16L, MemoryUtil.sizeOf(Boolean.TRUE));

        for (int i = 0; i < 300; i++) {
            if (MemoryUtil.getUsedMemory() < current + margin) {
                break;
            }
            System.gc();
            Thread.sleep(100L);
        }
        final long usedMemory = MemoryUtil.getUsedMemory();
        assertTrue(usedMemory + " < " + current + " + " + margin + ", " + MemoryUtil.getMemoryUsageLog(), usedMemory < current + margin);
    }