*
     * @param field
     *            the field to check. Must not be null.
     * @return true if instance field, false otherwise
     */
    public static boolean isInstanceField(final Field field) {
        assertArgumentNotNull("field", field);

        final int m = field.getModifiers();
        return !isStatic(m) && !isFinal(m);
    }

     * Checks if the given field is an instance field.
     *
     * @param field the field (must not be {@literal null})
     * @return {@literal true} if it is an instance field
     */
    public static boolean isInstanceField(final Field field) {
        assertArgumentNotNull("field", field);

        return !Modifier.isStatic(field.getModifiers());
    }

    /**
     * Checks if the given field is a public field.
     *

     */
    public void testIsInstanceField() throws Exception {
        Field f = Hoge.class.getDeclaredField("aaa");
        assertTrue(ModifierUtil.isInstanceField(f));
        f = Hoge.class.getDeclaredField("s");
        assertFalse(ModifierUtil.isInstanceField(f));
    }

    /**
     * @throws Exception
     */
    public void testIsTransient() throws Exception {
        Field f = Hoge.class.getDeclaredField("bbb");

    }

    @Override
    public boolean isPublic() {
        return FieldUtil.isPublicField(field);
    }

    @Override
    public boolean isStatic() {
        return !FieldUtil.isInstanceField(field);
    }

    @Override
    public boolean isFinal() {
        return FieldUtil.isFinalField(field);
    }

    @Override
    public boolean isParameterized() {

            }
            setFieldAccessible(field);
            final FieldDescImpl fieldDesc = new FieldDescImpl(this, field);
            fieldDescCache.put(fname, fieldDesc);
            if (!FieldUtil.isInstanceField(field)) {
                continue;
            }
            if (hasPropertyDesc(fname)) {
                final PropertyDescImpl pd = (PropertyDescImpl) propertyDescCache.get(field.getName());