NoSuchFileException in SessionModel because of .lock files in .git directory

[connellyj]

I've been able to replicate this by creating and then removing a file called index.lock from the .git directory for a repo. After removing it, Elegit shows this error. I have not been able to replicate the error through normal manipulation of a repo, but that is when it initially occurred. I've run in to this bug multiple times in the past.

The weirdest thing is that once it happens in one repo, it happens in any new clones afterwards as well.

Stack trace:

java.io.UncheckedIOException: java.nio.file.NoSuchFileException: /Accounts/connellyj/Desktop/UnitTest/NoSuchFileTestRepo/.git/index.lock at java.nio.file.FileTreeIterator.fetchNextIfNeeded(FileTreeIterator.java:88) at java.nio.file.FileTreeIterator.hasNext(FileTreeIterator.java:104) at java.util.Iterator.forEachRemaining(Iterator.java:115) at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) at elegit.SessionModel.getAllRepoFiles(SessionModel.java:463) at elegit.AllFilesPanelView.getFilesToDisplay(AllFilesPanelView.java:150) at elegit.FileStructurePanelView.drawDirectoryView(FileStructurePanelView.java:77) at elegit.SessionController.lambda$gitStatus$10(SessionController.java:923) at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) Caused by: java.nio.file.NoSuchFileException: /Accounts/connellyj/Desktop/UnitTest/NoSuchFileTestRepo/.git/index.lock at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86) at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55) at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144) at java.nio.file.Files.readAttributes(Files.java:1737) at java.nio.file.FileTreeWalker.getAttributes(FileTreeWalker.java:219) at java.nio.file.FileTreeWalker.visit(FileTreeWalker.java:276) at java.nio.file.FileTreeWalker.next(FileTreeWalker.java:372) at java.nio.file.FileTreeIterator.fetchNextIfNeeded(FileTreeIterator.java:95) ... 17 more

[connellyj]

It's also very inconsistent, like it doesn't happen every single time I start Elegit if a repo has been giving me the error before.

[connellyj]

It was a concurrency issue: I had to pause the repository monitor for all of Main, not in master yet, in file_not_found_test

[connellyj]

Fixed!