- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ ] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: 2.7.4.1
* Java version: 1.8

### Actual Result

[https://github.com/apache/dubbo/blob/839d2a604e629ea9e96b964be09ae221e85312ba/dubbo-common/src/main/java/org/apache/dubbo/common/Version.java#L175](https://github.com/apache/dubbo/blob/839d2a604e629ea9e96b964be09ae221e85312ba/dubbo-common/src/main/java/org/apache/dubbo/common/Version.java#L175)

### Expected Result

```
guess version from jar file name if nothing's found from MANIFEST.MF
```
 **fro ==> from**




import java.util.regex.Pattern;
/**
 * Version
 */
public final class Version {
    private static final Logger logger = LoggerFactory.getLogger(Version.class);
    private static final Pattern PREFIX_DIGITS_PATTERN = Pattern.compile("^([0-9]*).*");
    
    public static final String DEFAULT_DUBBO_PROTOCOL_VERSION = "2.0.2";
    
    public static final int LEGACY_DUBBO_PROTOCOL_VERSION = 10000; 
    
    private static final String VERSION = getVersion(Version.class, "");
    /**
     * For protocol compatibility purpose.
     * Because {@link #isSupportResponseAttachment} is checked for every call, int compare expect to has higher
     * performance than string.
     */
    private static final int LOWEST_VERSION_FOR_RESPONSE_ATTACHMENT = 2000200; 
    private static final Map<String, Integer> VERSION2INT = new HashMap<String, Integer>();
    static {
        
        Version.checkDuplicate(Version.class);
    }
    private Version() {
    }
    public static String getProtocolVersion() {
        return DEFAULT_DUBBO_PROTOCOL_VERSION;
    }
    public static String getVersion() {