- [ ] 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**




String error = "Duplicate class " + path + " in " + files.size() + " jar " + files;
                if (failOnError) {
                    throw new IllegalStateException(error);
                } else {
                    logger.error(error);
                }
            }
        } catch (Throwable e) {
            logger.error(e.getMessage(), e);
        }
    }
    /**
     * search resources in caller's classloader
     */
    private static Set<String> getResources(String path) throws IOException {
        Enumeration<URL> urls = ClassUtils.getCallerClassLoader(Version.class).getResources(path);
        Set<String> files = new HashSet<String>();
        while (urls.hasMoreElements()) {
            URL url = urls.nextElement();
            if (url != null) {
                String file = url.getFile();
                if (StringUtils.isNotEmpty(file)) {
                    files.add(file);
                }
            }
        }
        return files;
    }
}