/**
     *
     */
    @Test
    public void testGetPrimitiveClassIfWrapper() {
        assertThat(ClassUtil.getPrimitiveClassIfWrapper(Integer.class), is(sameClass(int.class)));
        assertThat(ClassUtil.getPrimitiveClassIfWrapper(String.class), is(sameClass(String.class)));
        assertThat(ClassUtil.getPrimitiveClassIfWrapper(Byte.class), is(sameClass(byte.class)));
    }

    /**
     *
     */
    @Test

        if (toClass == Object.class && !fromClass.isPrimitive()) {
            return true;
        }
        if (toClass.isPrimitive()) {
            fromClass = getPrimitiveClassIfWrapper(fromClass);
        }
        return toClass.isAssignableFrom(fromClass);
    }

    /**
     * Converts a wrapper class to its corresponding primitive class.
     *
     * @param clazz