elharo opened a new issue, #134:
URL: https://github.com/apache/maven-shared-jar/issues/134
In `FilenameExposer.java:35-40`, the regex only matches a single digit:
```java
private static final Pattern VERSION_PATTERN = Pattern.compile("-\\\\d");
// only matches single digit!
// ...
identification.addVersion(filename.substring(mat.end() - 1));
```
For a file like `my-lib-12.3.4.jar`:
- `mat.find()` matches `-1` at position 6-8
- `mat.end() - 1` = 7 ⇒ `filename.substring(7)` = `2.3.4`
The expected result is `12.3.4`. The pattern `-\\\\d` only matches `-`
followed by a **single** digit, so any version starting with a multi-digit
number (e.g., `10`, `12`, `21`) gets its first digit lopped off. This produces
incorrect artifact identification for versions >= 10.
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