![image](https://user-images.githubusercontent.com/54169514/199922630-ba1b1417-e124-40b1-bac7-49158e2adbca.png)

文档上ApplicationConfig的enableFileCache属性默认true，但是在Dubbo3.1版本中，该属性似乎默认为null，导致mapping和元数据无法在本地缓存。

![image](https://user-images.githubusercontent.com/54169514/199923129-c99ea29b-45c5-40d1-bc21-1fbb44830fc7.png)

public Boolean getQosAcceptForeignIpCompatible() {
        return this.getQosAcceptForeignIp();
    }
    public void setQosAcceptForeignIpCompatible(Boolean qosAcceptForeignIp) {
        this.setQosAcceptForeignIp(qosAcceptForeignIp);
    }
    public Map<String, String> getParameters() {
        return parameters;
    }
    public void setParameters(Map<String, String> parameters) {
        this.parameters = parameters;
    }
    public String getShutwait() {
        return shutwait;
    }
    public void setShutwait(String shutwait) {
        System.setProperty(SHUTDOWN_WAIT_KEY, shutwait);
        this.shutwait = shutwait;
    }
    @Parameter(excluded = true)
    public String getHostname() {
        return hostname;
    }
    @Override
    @Parameter(excluded = true, attribute = false)
    public boolean isValid() {
        return !StringUtils.isEmpty(name);
    }
    @Parameter(key = METADATA_KEY)
    public String getMetadataType() {