Falco created VFS-733:
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Summary: Parent layer of ZipFileSystem vanishes
Key: VFS-733
URL: https://issues.apache.org/jira/browse/VFS-733
Project: Commons VFS
Issue Type: Bug
Affects Versions: 2.4.1, 2.3, 2.4, 2.2
Reporter: Falco
When using {{FileObject#exists}} and {{FileObject#getContent}} on a ZIP file
(in any order), the reference to the parent file system is set to {{null}}.
{code}
final FileObject zippedFile = new OnCallRefreshFileObject(fileInZip());
assertNotNull(zippedFile.getFileSystem().getParentLayer());
zippedFile.exists();
zippedFile.getContent();
assertNotNull(zippedFile.getFileSystem().getParentLayer()); // fails
{code}
For an executable example, refer to
[https://github.com/f4lco/vfs-repro/blob/master/src/test/java/vfs/ZipParentLayerTest.java].
I come to believe this does not work as intended. I'm also relatively clueless
about a potential fix or workaround. For me, this bug blocks upgrading from VFS
2.1.
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