robe-assets/src/main/java/io/robe/assets/file/FileAsset.java
public void generateMD5() {
        md5 = Hashing.md5().hashString(asset.getPath() + asset.lastModified(), StandardCharsets.UTF_8).toString();
    }
public void generateMD5() {
        md5 = Hashing.md5().hashString(asset.getPath() + asset.lastModified(), StandardCharsets.UTF_8).toString();
    }
Generates hash (MD5) from http path and last modification date