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## Ask your question here
![1678891955524](https://user-images.githubusercontent.com/31841743/225348655-2b03b0b0-2da0-4e34-bfd0-be07e6e54d60.jpg)
![1678891971675](https://user-images.githubusercontent.com/31841743/225348708-57f4df91-77c5-4b32-9e4e-cde573002ad2.jpg)
![image](https://user-images.githubusercontent.com/31841743/225348805-4a38363d-25c3-4245-ab33-ea1772c3f115.png)
可以看到按照图片顺序，properties中设置default属性，在我从configManager中打印的2个注册中心default值都为null,dubbo版本是3.0.12
throw new IllegalStateException("No such server type : " + server);
        }*/
        this.server = server;
    }
    public String getClient() {
        return client;
    }
    public void setClient(String client) {
        /*if(client != null && client.length() > 0 && ! this.getExtensionLoader(Transporter.class).hasExtension(client)){
            throw new IllegalStateException("No such client type : " + client);
        }*/
        this.client = client;
    }
    public Integer getTimeout() {
        return timeout;
    }
    public void setTimeout(Integer timeout) {
        this.timeout = timeout;
    }
    public Integer getSession() {
        return session;
    }
    public void setSession(Integer session) {
        this.session = session;
    }
    public Boolean isDynamic() {
        return dynamic;
    }
    public void setDynamic(Boolean dynamic) {
        this.dynamic = dynamic;