lower version, for example 2.6.8
```properties
dubbo.provider.version=1.0
```

2.7.6 failed to recognize the provider url with 'default.version=1.0' key,  it only takes 'version.1.0' into consideration.

}
    public String getServiceInterface() {
        return getParameter(INTERFACE_KEY, path);
    }
    public URL setServiceInterface(String service) {
        return addParameter(INTERFACE_KEY, service);
    }
    /**
     * @see #getParameter(String, int)
     * @deprecated Replace to <code>getParameter(String, int)</code>
     */
    @Deprecated
    public int getIntParameter(String key) {
        return getParameter(key, 0);
    }
    /**
     * @see #getParameter(String, int)
     * @deprecated Replace to <code>getParameter(String, int)</code>
     */
    @Deprecated
    public int getIntParameter(String key, int defaultValue) {
        return getParameter(key, defaultValue);
    }
    /**
     * @see #getPositiveParameter(String, int)
     * @deprecated Replace to <code>getPositiveParameter(String, int)</code>
     */
    @Deprecated
    public int getPositiveIntParameter(String key, int defaultValue) {
        return getPositiveParameter(key, defaultValue);