Skip to main content


Eclipse Community Forums
Forum Search:

Search      Help    Register    Login    Home
Home » Eclipse Projects » EGit / JGit » read commit failed with org.eclipse.jgit.errors.MissingObjectException: Missing unknown
read commit failed with org.eclipse.jgit.errors.MissingObjectException: Missing unknown [message #1793175] Wed, 01 August 2018 00:17 Go to next message
Nguyen Tien is currently offline Nguyen TienFriend
Messages: 1
Registered: July 2018
Junior Member
Hello,

I write a snipet to read git commit from some git repo. But it failed to read some repo. Here are the error

grafana-master/grafana-plugins/.git indexed repo failed
org.eclipse.jgit.errors.MissingObjectException: Missing unknown 7202bc6573821ed3ba371c895fff0b00102674d2
at org.eclipse.jgit.internal.storage.file.WindowCursor.open(WindowCursor.java:168)
at org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:236)
at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:889)
at org.eclipse.jgit.revwalk.RevWalk.parseCommit(RevWalk.java:799)

- the repo is https://github.com/grafana/grafana-plugins, it is clone locally
- the repo is clean, no local change or commit
- my jgit version is latest 5.0.1.201806211838-r
- my code is as follow

Repository repository = repositoryBuilder.setGitDir(gitFolder)
.readEnvironment() // scan environment GIT_* variables
.findGitDir() // scan up the file system tree
.setMustExist(true)
.build();
Git git = new Git(repository);
ObjectId lastCommitId = repository.resolve(Constants.HEAD);
try (RevWalk walk = new RevWalk(repository)) {
RevCommit commit = walk.parseCommit(lastCommitId);

It failed in the last line 'RevCommit commit = walk.parseCommit(lastCommitId);'

I also try to read git repo with git.log().all().call();
but it still failed with the same error.

That code work well with other repos, but failed to read some repo.

Please advice me how to solve this issue.

Thanks.
Tien
Re: read commit failed with org.eclipse.jgit.errors.MissingObjectException: Missing unknown [message #1793850 is a reply to message #1793175] Fri, 17 August 2018 08:54 Go to previous message
Christian Halstrick is currently offline Christian HalstrickFriend
Messages: 256
Registered: July 2009
Senior Member
For me this code works when called with "https://github.com/grafana/grafana-plugins" and "HEAD"

public class CloneRepoIntoTmpAndInspectHEAD {
	public static void main(String args[]) throws IOException, GitAPIException, JGitInternalException {
		Path tmp = Files.createTempDirectory("JGitTest_" + CloneRepoIntoTmpAndInspectHEAD.class.getName());
		try (Git git = Git.cloneRepository().setDirectory(tmp.toFile()).setURI(args[0]).setBare(false).call()) {
			System.out.println("Repo " + args[0] + " cloned to " + tmp);
			Repository repo = git.getRepository();
			ObjectId lastCommitId = repo.resolve(Constants.HEAD);
			try (RevWalk walk = new RevWalk(repo)) {
				RevCommit commit = walk.parseCommit(lastCommitId);
				System.out.println("Commit " + lastCommitId + " has message " + commit.getShortMessage());
			}
		} finally {
			Files.walk(tmp).map(Path::toFile).sorted((o1, o2) -> -o1.compareTo(o2)).forEach(File::delete);
		}
	}
}


Ciao
Chris
Previous Topic:Help:A cycle was detected when generating the classpath
Next Topic:Java 11 Compatibility check: JGit
Goto Forum:
  


Current Time: Fri Sep 21 09:46:44 GMT 2018

Powered by FUDForum. Page generated in 0.01689 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.2.
Copyright ©2001-2010 FUDforum Bulletin Board Software

Back to the top