[jgit-dev] MissingObjectException when using setBranchesToClone?

["Clay B." <cwb@xxxxxxxxx>]

Hello,

My apologies if I am misunderstanding the correct usage of setBranchesToClone() 
but I keep getting an org.eclipse.jgit.api.errors.JGitInternalException 
"Missing unknown"/org.eclipse.jgit.errors.MissingObjectException 
exception for the head of my repo when trying to use the 
setBranchesToClone for only a single branch.

I have provided my implementation (and what I am seeing) as a GitHub repo at 
https://github.com/cbaenziger/jgit_question.

Particularly, I'm trying to clone https://github.com/apache/oozie branch 
ap-pages using the following:

CloneCommand cloneCommand = Git.cloneRepository();
cloneCommand.setURI("https://github.com/apache/oozie";);
cloneCommand.setDirectory(tempD);
cloneCommand.setBranchesToClone(Arrays.asList("refs/heads/ap-pages"));

But I end up with:

Exception in thread "main" org.eclipse.jgit.api.errors.JGitInternalException: 
Missing unknown 6121dc0cd19c3f7d2f4412922cffd1ff47e6f756
	at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:218)
	at net.clayb.Test.main(Test.java:44)
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing unknown 
6121dc0cd19c3f7d2f4412922cffd1ff47e6f756
	at 
org.eclipse.jgit.internal.storage.file.WindowCursor.open(WindowCursor.java:163)
	at org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:234)
	at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:859)
	at org.eclipse.jgit.revwalk.RevWalk.parseCommit(RevWalk.java:772)
	at org.eclipse.jgit.api.CloneCommand.parseCommit(CloneCommand.java:437)
	at org.eclipse.jgit.api.CloneCommand.checkout(CloneCommand.java:340)
	at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:215)
	... 1 more

Would anyone have a recommendation on what I am doing wrong, or should this be 
captured as a bug?

Thanks!
Clay