JSBP (Jar String Bytes Patcher)

A tool to modify the constant String value in jar file

Performance

Written in Rust and Support Asynchronous Patch, so it's fast.

Principle

Jar is usually encoded by Zip and constant String is usually denoted by SIZE_BYTE SIZE_BYTE UTF_BYTES.

Use ZipDecoder to find a file in jar and find use new SIZE_BYTE SIZE_BYTE UTF_BYTES to replace original data to modify the constant String.

Warning

Because the Bytes in a file are unpredictable. So there's a risk that using the tool will break the file.

How to use

See ./jsbp --help