Github user unsleepy22 commented on the pull request:
https://github.com/apache/storm/pull/928#issuecomment-162933358
I'd prefer to create a util method like `joinPath` which is like:
```
public static String joinPath(String... pathList) {
return Joiner.on(File.separator).join(pathList);
}
```
to avoid so many duplicate `File.separator`s.
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