wro4j-core/src/main/java/ro/isdc/wro/manager/WroManager.java
protected String formatVersionedResource(final String hash, final String resourcePath) {
    return String.format("%s/%s", hash, resourcePath);
  }
protected String formatVersionedResource(final String hash, final String resourcePath) {
    return String.format("%s/%s", hash, resourcePath);
  }
Format the version of the resource in the path. Default implementation use hash as a folder: <hash>/groupName.js.
The implementation can be changed to follow a different versioning style, like version parameter:
/groupName.js?version=<hash>

@param hash
Hash of the resource.
@param resourcePath
Path of the resource.
@return formatted versioned path of the resource.