INFO  Collecting 1 KB of loose objects from mediawiki/extensions/PhpTagsWiki.git
ERROR Error collecting garbage in mediawiki/extensions/PhpTagsWiki.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:614)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 13,744 KB of loose objects from mediawiki/extensions/ProofreadPage.git
ERROR Error collecting garbage in mediawiki/extensions/ProofreadPage.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 1,394 KB of loose objects from mediawiki/extensions/SocialProfile.git
ERROR Error collecting garbage in mediawiki/extensions/SocialProfile.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 4,114 KB of loose objects from mediawiki/extensions/SpamBlacklist.git
ERROR Error collecting garbage in mediawiki/extensions/SpamBlacklist.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  985 repository models loaded for anonymous in 1,287 msecs
INFO  Collecting 6,289 KB of loose objects from mediawiki/extensions/TwnMainPage.git
ERROR Error collecting garbage in mediawiki/extensions/TwnMainPage.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 2,798 KB of loose objects from mediawiki/extensions/UserMerge.git
ERROR Error collecting garbage in mediawiki/extensions/UserMerge.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 18 KB of loose objects from mediawiki/extensions/WikiTextLoggedInOut.git
ERROR Error collecting garbage in mediawiki/extensions/WikiTextLoggedInOut.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 93 KB of loose objects from mediawiki/tools/code-utils.git
ERROR Error collecting garbage in mediawiki/tools/code-utils.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 899 KB of loose objects from oojs/ui.git
ERROR Error collecting garbage in oojs/ui.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:614)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 3 KB of loose objects from operations/software/kibana.git
ERROR Error collecting garbage in operations/software/kibana.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:614)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 2,293 KB of loose objects from qa/browsertests.git
ERROR Error collecting garbage in qa/browsertests.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 828 KB of loose objects from wikimedia/bugzilla/triagescripts.git
ERROR Error collecting garbage in wikimedia/bugzilla/triagescripts.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:646)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more
INFO  Collecting 1,925 KB of loose objects from wikimedia/wikimania-scholarships.git
ERROR Error collecting garbage in wikimedia/wikimania-scholarships.git
org.eclipse.jgit.api.errors.JGitInternalException: Garbage collection failed.
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:126)
	at com.gitblit.GCExecutor.run(GCExecutor.java:195)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.IOException: Permission denied
	at java.io.UnixFileSystem.createFileExclusively(Native Method)
	at java.io.File.createNewFile(File.java:947)
	at org.eclipse.jgit.internal.storage.file.LockFile.lock(LockFile.java:159)
	at org.eclipse.jgit.internal.storage.file.RefDirectory.pack(RefDirectory.java:614)
	at org.eclipse.jgit.internal.storage.file.GC.packRefs(GC.java:469)
	at org.eclipse.jgit.internal.storage.file.GC.gc(GC.java:162)
	at org.eclipse.jgit.api.GarbageCollectCommand.call(GarbageCollectCommand.java:123)
	... 9 more