jol: init at 0.17 (#431582)

pkgs/by-name/jo/jol/package.nix

@@ -0,0 +1,62 @@
+{
+  maven,
+  lib,
+  fetchFromGitHub,
+  jre_minimal,
+  makeWrapper,
+  nix-update-script,
+}:
+maven.buildMavenPackage rec {
+  pname = "jol";
+  version = "0.17";
+
+  src = fetchFromGitHub {
+    owner = "OpenJDK";
+    repo = "jol";
+    tag = version;
+    hash = "sha256-ZJFuY2QYB8eUS3y3VRMGGwklCS93HHVkNe/dhyIx0SY=";
+  };
+
+  mvnHash = "sha256-yQfiHlAZZgINGAYVlK5JflWX3d8Axtv1Ke89S7x86G4=";
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postPatch = ''
+    substituteInPlace jol-cli/src/main/java/org/openjdk/jol/Main.java \
+      --replace-fail 'Usage: jol-cli.jar' 'Usage: jol-cli'
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -Dm644 jol-cli/target/jol-cli.jar $out/share/jol-cli/jol-cli.jar
+    makeWrapper ${lib.getExe' jre_minimal "java"} $out/bin/jol-cli \
+      --add-flags "-jar $out/share/jol-cli/jol-cli.jar"
+
+    runHook postInstall
+  '';
+
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "Java Object Layout (JOL)";
+    longDescription = ''
+      JOL (Java Object Layout) is the tiny toolbox to analyze object layout in JVMs.
+      These tools are using Unsafe, JVMTI, and Serviceability Agent (SA) heavily to decode the actual object layout, footprint, and references.
+      This makes JOL much more accurate than other tools relying on heap dumps, specification assumptions, etc.
+    '';
+    homepage = "https://openjdk.org/projects/code-tools/jol/";
+    changelog = "https://github.com/openjdk/jol/releases/tag/${version}";
+    license = lib.licenses.gpl2ClasspathPlus;
+    sourceProvenance = with lib.sourceTypes; [
+      fromSource
+      binaryBytecode
+    ];
+    mainProgram = "jol-cli";
+    maintainers = with lib.maintainers; [
+      debling
+      progrm_jarvis
+    ];
+    inherit (jre_minimal.meta) platforms;
+  };
+}