Function find_java_binary

rust/src/jre.rs:308–327

(root: &Path)

}

fn find_java_binary(root: &Path) -> Option<PathBuf> {
    let java_binary = if OS == "windows" { "java.exe" } else { "java" };
    for entry in WalkDir::new(root).into_iter().flatten() {
        let path = entry.path();
        if path.is_file()
            && path
                .file_name()
                .map(|name| name.eq_ignore_ascii_case(java_binary))
                .unwrap_or(false)
            && path
                .parent()
                .and_then(|parent| parent.file_name())
                .map(|name| name.eq_ignore_ascii_case("bin"))
                .unwrap_or(false)
        {
            return Some(path.to_path_buf());
        }
    }
    None
}

fn read_java_version(java_path: &Path) -> Result<Option<String>, Error> {
    let output = Command::new(java_path).arg("-version").output()?;