RFR: 8286122: [macos]: App bundle cannot upload to Mac App Store due to info.plist embedded in java exe

[Michael Hall]

> On May 11, 2022, at 4:39 PM, Alexander Matveev <almatvee at openjdk.java.net> wrote:
> 
> - It is not possible to support native JDK commands such as "java" inside Mac App Store bundles due to embedded info.plist. Workarounds suggested in JDK-8286122 does not seems to be visible.

I was just thinking about this. If you wanted a workaround to suggest to the user on the original issue. You could jar the native executables, extract them to a known accessible location, and then runtime them.

Having the commands jar’d would get them past the App Store check. Runtime on the client machine I doubt would object to the duplicate bundle id’s on absolute path execution but I haven’t double checked that. Also avoids issues with quarantine xattr’s. 
I’ve done something like this a couple times for interfacing an app to other languages. 

For example…

			if (Files.exists(rscriptCmd)) {
				isR = true;
				System.out.println("InitialFinance: RScript available");
				// Where is the finance data directory?
				String data = prefs.get("data","N/A");
				
				if (data.equals("N/A")) {
					Application app = Application.getApplication();
					Path documents = app.getFolder(DataTypes.DOCUMENTS);
					dataLoc = Paths.get(documents.toString(),"finance");
				}
				else {
					dataLoc = Paths.get(data);					
				}
				System.out.println("InitialFinance: data location is " + dataLoc);
				Path resourceJar = Paths.get(System.getProperty("app.path"),"resource.jar");	
				System.out.println("InitialFinance: Checking resources for updates");
				extractArchive(resourceJar,dataLoc);
			}
			else {
				System.out.println("InitialFinance: " + rscriptCmd + " for " + initialRscript + " does not exist");
				isR = false;
			}

	// https://stackoverflow.com/questions/1529611/how-to-write-a-java-program-which-can-extract-a-jar-file-and-store-its-data-in-s
    public static void extractArchive(Path archiveFile, Path destPath) throws IOException {
        Files.createDirectories(destPath); // create dest path folder(s)
        try (ZipFile archive = new ZipFile(archiveFile.toFile())) {

        	@SuppressWarnings("unchecked")
        	Enumeration<ZipEntry> entries = (Enumeration<ZipEntry>) archive.entries();

            // copy or create new or updated
        	while (entries.hasMoreElements()) {
        		ZipEntry entry = entries.nextElement();
        		
        		if (!entry.getName().startsWith("finance/") || !(entry.getName().length() > 8)) {
        			continue;
        		}
        		String fileName = entry.getName().substring(8);
        		FileTime archiveTime = entry.getLastModifiedTime();

                Path entryDest = destPath.resolve(fileName);
                //if (Files.isDirectory(entryDest)) continue;
                //Files.createDirectories(entryDest);
        		if (!Files.exists(entryDest)) {
        			Files.copy(archive.getInputStream(entry), entryDest, StandardCopyOption.REPLACE_EXISTING);   
        			continue;
        		}
                BasicFileAttributes destAttr =
                        Files.readAttributes(entryDest, BasicFileAttributes.class);
                
                if (archiveTime.compareTo(destAttr.creationTime()) > 0) {
                    Files.copy(archive.getInputStream(entry), entryDest, StandardCopyOption.REPLACE_EXISTING);               	
                }
            }
        }
        catch (IOException ioex) {
        	throw ioex;
        }
    }

boolean debug = Boolean.getBoolean("R.debug");
				rtexec(new String[] { RSCRIPT, script.toString() },debug);