You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: jsign.rb
    path of file: ./repos/homebrew-core/Formula/j
    
    the code of the file until where you have to start completion: class Jsign < Formula
  desc "Tool for signing Windows executable files, installers and scripts"
  homepage "https://ebourg.github.io/jsign/"
  url "https://github.com/ebourg/jsign/archive/refs/tags/6.0.tar.gz"
  sha256 "df98690164440627bbecab7498690231c80fb19a68cdf7784b88e19ba24bd7a8"
  license "Apache-2.0"
  head "https://github.com/ebourg/jsign.git", branch: "master"

  bottle do
    sha256 cellar: :any_skip_relocation, arm64_sonoma:   "8ac0ba259a072ae54609e8517bef751f0ad9f7dcb39ead1fbf7b529700754420"
    sha256 cellar: :any_skip_relocation, arm64_ventura:  "8b4fb3b4a925e1faacc6bd36e654320bfef7ba2aecafffec465d785f216d4ab8"
    sha256 cellar: :any_skip_relocation, arm64_monterey: "7419e1205bfa7292c36a90060c73e83d430676776046f483f4ee64db7456c008"
    sha256 cellar: :any_
    
  def install
    ENV["JAVA_HOME"] = Formula["openjdk@17"].opt_prefix
    system "mvn", "--batch-mode", "package",
                  "--projects", "jsign-core,jsign-cli,jsign-ant,jsign",
                  "-DskipTests",
                  "-Djdeb.skip",
                  "-Dmaven.javadoc.skip"

    # Fetch the version from the pom (required to build from HEAD)
    require "rexml/document"
    pom = REXML::Document.new(File.new("pom.xml"))
    version = REXML::XPath.first(pom, "string(/pom:project/pom:version)", "pom" => "http://maven.apache.org/POM/4.0.0")

    libexec.install "jsign/target/jsign-#{version}.jar"
    args = %w[
      -Djava.net.useSystemProxies=true
      -Dbasename=jsign
      -Dlog4j2.loggerContextFactory=net.jsign.log4j.simple.SimpleLoggerContextFactory
    ]
    bin.write_jar_script libexec/"jsign-#{version}.jar", "jsign", args.join(" ")
    bash_completion.install "jsign/src/deb/data/usr/share/bash-completion/completions/jsign"
    man1.install "jsign/src/deb/data/usr/share/man/man1/jsign.1"
  end