@Override
    public DefaultJwtRuleHandle parseHandleJson(final String handleJson) {
        try {
            return GsonUtils.getInstance().fromJson(handleJson, DefaultJwtRuleHandle.class);
        } catch (Exception exception) {
            LOG.error("Failed to parse json , please check json format", exception);
            return null;
        }
    }
@Test
    public void testParseHandleJson() {
        String handleJson = "{\"converter\":[{\"jwtVal\":\"sub\",\"headerVal\":\"id\"}]}";
        assertThat(defaultJwtConvertStrategy.parseHandleJson(handleJson), notNullValue(DefaultJwtRuleHandle.class));
        assertThat(defaultJwtConvertStrategy.parseHandleJson(null), nullValue());
    }