Usage

1. Build the tool.
2. Run it with the target directory as an argument:

java -jar jar-indexer.jar <path-to-directory-with-jars>

The tool will scan all JAR files in the specified directory.

3. Output: After processing, the tool generates an classesIndex.txt file containing all found classes, sorted alphabetically, and packagesIndex.txt file containing all found packages, sorted alphabetically.